“Be holy because I, the Lord your God, am holy.” Leviticus/Vayikra 19:2
 
Halacha ("The Way To Go" or "Way to Walk") guides proper Jewish behavior in all aspects of life, each day of our lives--not just in civil laws or court situations. Halacha teaches us how to behave with our families, relatives, and strangers as well as how to fulfill our religious requirements between ourselves and God.

To fulfill our role as a holy people, we imitate God's actions. Examples are visiting the sick, welcoming guests, giving charity, refraining from creative activity on Shabbat, and promoting peace between husband and wife (shalom bayit).

The true reason for following halacha is because God commanded us to do so.  We observe halacha to please our Creator and to become spiritually close to Him by doing His will and imitating His actions.

Like the word for the whole body of Jewish "laws," each rule of how to act is called a halacha (plural, halachot).

Where Do Halachot Come From?

Although you will find halachot on this site that were born only a few days or a few decades ago, the body of halacha has been around since before creation.  "God looked into the Torah and created the world," says the Zohar, and so we find the Patriarchs followed halacha even before that great law book, the Torah, was given on Mount Sinai four centuries later.
 
Many halachot are specified in the Written Torah (Jewish Bible). These halachot correspond to fuller and more detailed halachot given orally (Oral Torah) to Moses on Mount Sinai to explain the Written Torah that he received at the same time. Many halachot could not be understood from the Written Torah without the Oral Law (for example, what should be written on a mezuza scroll?) and many common practices such as making kiddush or what tefilin should look like are to be found nowhere in the Written Torah.
 
Since the Torah applies to all generations, the Torah specifies that there be wise and learned people to decide how to apply halacha to the situations of the day.  Halachot can be found in sourcebooks such as the Mishna, Gemara, their commentaries, Shulchan Aruch, Mishna Berura, and responsa (questions and answers originally sent by letter and now, occasionally, by email or SMS!) of later rabbis.
 
Sometimes a custom becomes a halacha, sometimes not.  For example, the original halacha for tzitzit was that a Jewish man who wears a four-cornered garment must have tzitziyot on each corner.  The custom, which has become universally accepted and now has the force of halacha, is that Jewish men wear a four-cornered garment in order to be able to fulfill the commandment of wearing tzitziyot.  An example of a custom that did not become a halacha is that some men and boys wear their tzitziyot outside of their shirts and pants.

Levels of Halachot

In halacha, there are three levels of what to follow or observe. They are differentiated on this website by the following terms: 

• “Must”:  Halachot that are generally non-negotiable except in extreme situations;
• “Should”:  Customs that have been accepted by the entire Jewish world (or major segments of it) and that may be overridden when necessary, sometimes even if not extreme circumstances; and
• “Non-Binding Custom”:  Customs that are not universally followed and that do not need to be followed except by people who have the tradition to do so.

Sukkot means “huts.” The Jewish festival of Sukkot celebrates and commemorates the shelters in which the Israelites lived for 40 years after leaving Egypt.
 
Symbols
The main symbols associated with Sukkot are living in a sukka (eating and, when possible, sleeping in the sukka) and the lulav and etrog.
 
Sukkot is observed at fall harvest time.  When many Jews were feeling wealthy due to their produce, we were commanded to live in temporary shelters--in part, to ward off feelings of arrogance or pride in what we had accomplished in the material world. Instead of thinking or feeling that our hard work or great wisdom has made us wealthy, we are reminded that whatever we have comes from God, and that God will take care of us, even in a flimsy “house.”
 
The lulav and etrog have many meanings.  Here are two:
 
Likening to the Human Body
The four components are compared to four parts of the human body:

• Palm branch: Spine.
• Myrtle leaves: Human eyes.
• Willow leaves: Human lips.
• Etrog: Human heart.

When we hold the four parts of the lulav/etrog together, we are symbolically taking the various components of our bodies together to serve God.
 
Likening to Types of Jews
The four components are likened to four types of Jews:

• Etrog smells nice and tastes nice--like a tzadik who is knowledgeable in Torah and does mitzvot;
• Myrtle smells nice but does not have a good taste--like a person who does mitzvot but is not knowledgeable in Torah;
• Palm tree (date palm) has a nice tasting fruit but no scent--like someone who has knowledge but lacks mitzvot;
• Willow does not smell nice nor has a good taste--like a person who has neither.

By holding them together, we show that all types of Jews are to be consider as one nation.

Shabbat was the goal of Creation. Just as God completed the world's creation on the sixth day and ceased His work on the seventh, so Jews are supposed to imitate God and not do any creative work on the seventh day. Everything we need for living through Shabbat must be prepared ahead so that we do not do any creative activities on Shabbat.
Our observance of Shabbat thus testifies that God created the world. In the Shabbat kiddush, we mention the Exodus from Egypt, too, to testify to the world that God is continuously involved in our lives.
By ceasing our normal efforts to dominate the physical world, we can appreciate the spiritual aspects of our existence.
On Shabbat, all observant (shomer Shabbat) Jews receive an extra “soul.”

Zachor and Shamor

Remember (Zachor) the Sabbath day to make it holy—Exodus/Shmot 20:8
Observe (Shamor) the Sabbath day to make it holy—Deuteronomy/Devarim 5:12
Shabbat has two dimensions:

• Zachor  “Remember,” encompassing positive (“to do”) commandments, and
• Shamor  “Observe,” encompassing negative (“refrain from”) commandments.

Zachor:  Positive Shabbat Commandments
What Are Positive Shabbat Commandments
Positive Shabbat commandments include:

• Lighting candles,
• Making kiddush evening and morning,
• Making havdala,
• Honoring Shabbat (Kivod Shabbat), and
• Enjoying Shabbat (Oneg Shabbat), including eating three meals on Shabbat.

Honoring Shabbat: Special Food and Clothes
Honoring Shabbat includes eating tasty food and wearing nice clothes.

Shamor: Negative Shabbat Commandments
Shabbat Laws from the Torah (Shabbat D'Oraita)
What Are Melachot
On the Jewish day of rest, we refrain from 39 creative activities (melachot) that had been used to build the Tabernacle in the wilderness. These 39 melachot, prohibited by the Torah, are listed in the mishna of Shabbat and in later halacha books.

The word melacha is frequently mistranslated as “work,” but work has nothing to do with the Jewish concept of melacha. Some melachot are physically strenuous (plowing, grinding wheat, skinning an animal) and some are easy to do (drawing, baking). The defining point is whether the activity is one of the 39 creative, value-adding labors. Emptying your pockets before leaving an eruv (so you are not “carrying”) may seem confusing to someone who thinks that resting on Shabbat means refraining only from hard physical labor!

What Are Toldot
Toldot are variations of the 39 melachot. These types of melacha are also prohibited by the Torah.

Intention and Other Considerations
Most Torah (d'oraita) prohibitions of melacha on Shabbat are for cases in which you:
            1) Intend a permanent change.
                Often, actions that may be forbidden when they cause permanent change, will
                be permissible by Torah law if the result is only temporary. Or
            2) Intend or act for a specific purpose.
                Random or unintended actions are generally not prohibited by Torah law.
                (However, actions that are not prohibited by the Torah, may be prohibited
                by Chazal.)

Whether you may benefit from a melacha done on Shabbat depends on intention:

• A Jew who intentionally does a melacha on Shabbat may never benefit from that melacha.

            Note Any other Jew may benefit from that melacha as soon as Shabbat is over.

• A Jew who does melacha on Shabbat by mistake (shogeg) may benefit from that melacha immediately after Shabbat ends.

In order to violate a prohibited melacha d'oraita, the melacha must be done as follows. If any of these do not apply, then the melacha is forbidden d'rabanan but not d'oraita:

• K'darko--The action must be done in a normal way.
• Tzorech tikun—The action must be done for a constructive purpose.
• Tzricha l'gufa--You must need the normal result of that action.
• Asiya b'yachid—The action must be done by one individual (if commonly done by just one person).
• Mit'aseik--You must realize that you are doing a melacha.

 
Shabbat Laws from Chazal (Shabbat D'Rabanan)
Chazal instituted additional restrictions, such as:

• Activities that might lead directly to violating a Torah prohibition.
• Use of items not designated for Shabbat use (muktza). For a good explanation of muktza from the TorahTots website, please click here.
• Activities that might lead one to think that a prohibited activity is permissible (mar'it ayin--the appearance of the eye).
• Activities that are not appropriate for Shabbat, even though they are technically permissible according to the Torah (“uvda d'chol”).
• Tircha--Exerting a physical effort to accomplish a result that is not required for Shabbat.

Enjoying Shabbat/Oneg Shabbat
Chazal instituted laws to engender a positive Shabbat atmosphere and experience.  Beyond the actual halachot of shamor and zachor, we have a concept of enjoying Shabbat (oneg Shabbat)—of enhancing our experience of Shabbat by doing whatever each person finds to be enjoyable and relaxing--as long as it is neither destructive nor violates the laws of Shabbat. The criteria are subjective. To fulfill the idea of honoring Shabbat, do things you would not do just for yourself if it were not Shabbat. Take essential life activities such as eating and sleeping and do them more and better and make them especially enjoyable.

Meals as Oneg
On Shabbat, we eat better foods and more types of food than we would normally do on weekdays.
The main idea behind meals for Shabbat is enjoyment (oneg; by contrast, the main idea for Jewish festivals is joy--simcha), so on Shabbat you should eat bread and either fish, poultry, or meat (but only if you enjoy them).
In order to have a special appetite for our Shabbat evening meal, we don't eat a full meal with bread on Friday afternoon.

Special Shabbat Songs (Zmirot)
Special songs (zmirot) are sung at the various Shabbat meals. Some zmirot have an aspect of prayer to them.

Studying Torah
Studying Torah on Shabbat is another way of increasing our spiritual experience. It honors the Shabbat and should bring about enjoyment of Shabbat.

Shabbat and Muktza
For information on Shabbat and muktza, see section below, Shabbat: Muktza.

Weekday Talk
Don't talk about subjects that are forbidden to do on Shabbat (weekday subjects); for example, don't talk about what you will do after Shabbat is over. There is no prohibition about discussing actions from the past as long as no planning is discussed.

There are two main types of bowing during the prayer services: 

• Bowing just from the waist (with and without taking steps), and
• Bowing with the knees, plus two variations on Rosh Hashana and Yom Kippur (hands and knees on floor).

I. Waist-Bowing (Two Forms)

• Modim;
• Modim in reader's repetition of amida;
• Bar'chu;
• Lecha Dodi; and
• Alenu.

          To bow this way, keep your legs straight and bend forward from your waist.
    B.  Waist-Bowing/Take Steps, for:

• Amida, and
• Kaddish.

• Bow down from waist with your legs straight.
• Take three steps backward (left foot, right foot, left foot),
• Then:
  • Bow from your waist to the left and say, oseh shalom bi'mromav,
  • Bow from your waist to the right and say, hu ya'aseh shalom alenu, and
  • Bow from your waist to the front and say, ve'al kol yisrael v'imru amen.

II.    Knee-Bowing (Three Times during Amida)

• Beginning of amida's first blessing,
• End of amida's first blessing, and
• Next-to-last amida blessing: ha'tov shimcha.

• Bend knees (at baruch),
• Bow forward (at ata), and
• Straighten up (before God's name).

III.  Knee-Bowing to Floor (Two Forms)
       A.  Knee-Bowing to Floor--Hands and Knees Only

• Kneel (with your back straight up) (at “hayu kor'im”), and
• Bow down with hands and knees on floor (at “u'mishtachavim u'modim”), but
• You are not required to touch your forehead to ground.
  Note You should still bow from your waist (but not to the floor) on Rosh Hashana--even if you are praying alone and even if there is no Torah present.

• Kneel (with your back straight up) (at “hayu kor'im”),
• Bow down with hands and knees on floor (at “u'mishtachavim u'modim”),
• Touch forehead to floor (at v'noflim al pneihem).

(from kashrus/kk-medi-terumos.htm">http://www.star-k.org/kashrus/kk-medi-terumos.htm, used with permission)

Post this document in a conspicuous place.

1. Break or cut off more than one hundredth of the food and set it aside (for teruma and terumat ma'aser).
2. Say the following (either in Hebrew or English):
   
   
   
   Yoteir me'echad me'me'a she'yeish kahn harei hu teruma gedola be'tzad tzefono. Oto echad me'me'a she'yeish kahn ve'od tish'a chalakim k'moto be'tzad tzefono shel ha'peirot harei hu ma'aser rishon. Oto echad me'me'a she'asitiv ma'aser rishon asuy terumat ma'aser, uma'aser sheini b'dromo, u'mechulal hu ve'chumsho al peruta be'matbei'a sh'yichidita lechilul ma'aser sheini ve'revai. Ve'im tzarich ma'aser ani ye'hei ma'aser ani bi'dromo. Im hu revai ye'hei mechulal hu ve'chumsho al peruta be'matbei'a she'yichidita le'chilul ma'aser sheini ve'revai.
   
   (Im ma'aser minim harbei tzarich le'hosif) “kol min al mino.”
   
   
   Translation
   (If there is a food of one type that requires separation) Whatever is MORE than one hundredth of this food shall be teruma on the north side of the piece that I have set aside. The one hundredth that is left in the piece I have set aside plus nine other pieces the same size on the north side of the food shall be ma'aser rishon. That same one hundredth in the piece I set aside that I have made ma'aser shall be terumat ma'aser.
   Furthermore, I am proclaiming ma'aser sheini to be in effect on the south side of the food, and I am redeeming it and its fifth on a pruta (smallest amount of money recognized by the Torah for most purposes) of this coin which I have in front of me. If this food needs ma'aser ani, the ma'aser ani shall take effect on the south side of the food.
   If this food is subject to the laws of neta revai then it and its fifth shall be redeemed on a pruta of this coin that I have in front of me.
   
   If there is a food of more than one type, add each type of food for its type.
    
3. Wrap the broken or cut-off piece in plastic and discard.
4. The coin--dime or coin of greater value--must eventually be disposed of in such a manner that it will not be used.
5. The food may now be eaten.

 
If you do not want to say the long version, you may say this shorter version, after having separated a piece larger than 1\% of the total food:
All separations and redemptions shall take effect as is specified in this Star-K document outlining the Procedure for Separating Terumot and Ma'asrot, Tithes and Redemptions, which I have in my possession.

Whether saying the long or short version, only a little over one hundredth of the food will not be permitted to eat; all the rest may be eaten. Even though the tithes constitute over one fifth of the food, one is permitted to eat most of the tithes oneself, even though he may not be a Cohen or a Levi. Under no circumstances will it suffice merely to break off a piece of the food and throw it away. The aforementioned instructions must be strictly followed. The laws of the tithes apply to everyone, including the Cohen and Levi.

You must say the blessing lehafrish trumot u'ma'asrot if you know the produce definitely needed to have teruma and ma'aser taken; it was definitely:

• Grown on Jewish-owned land in halachic Eretz Yisrael and
• Had not yet had teruma and ma'aser taken from it.

BUT you must not say the blessing if the produce might have:

• Not been grown on Jewish-owned land in halachic Eretz Yisrael, OR
• Already had teruma and ma'aser separated.

Jewish Festivals: Medicines: When To Take
Medicine generally may not be used on the d'oraita Jewish festival days.

Jewish Festivals: Medicine for Chronic Diseases
You may take medicine on Jewish festivals (whether d'oraita or d'rabanan) for:

• Chronic diseases, such as Parkinson's disease, or
• Any disease that affects your entire body.

Jewish Festivals: Medicine for Non-Chronic Diseases
You may take medicine on Jewish festivals for non-chronic illnesses, if skipping one day will prevent cure.  You may not take medicine for non-chronic illnesses if skipping a day will just delay your being cured (unless the disease affects your entire body--in which case, you may take the medicine).

Jewish Festivals: Medicines: When To Take: D'Oraita Festival Days
Here are the d'oraita Jewish festivals:

• First day of Sukkot, Passover, and Shavuot
• Seventh day of Passover
• Shmini Atzeret (8^th day of Sukkot)
• Yom Kippur
• Both days of Rosh Hashana (even though the second day is d'rabanan).

On these days, as well as on d'rabanan Jewish festivals, you:

• MUST take medicine whenever there is any question of a life-threatening disease or condition.
• MAY take medicine for a condition that affects the entire body (illness, weakness, etc.). Consult a rabbi if possible.
  ExceptionYou may not smear substances on skin UNLESS the illness is life-threatening, in which case even smearing is permitted.
• MAY use some medicines if only part of your body is affected by a non-life-threatening disease--consult a rabbi.

Jewish Festivals: Medicines: When To Take: D'Rabanan Festival Days
You make take medicines for any reason on d'rabanan Jewish festivals--even medicines not allowed on the first day of Jewish festivals--except:

• Medicines that you smear on skin.
• If the Jewish festival falls on Shabbat (which can only be second day of Shavuot).

The International Dateline (IDL), which is 180 degrees away from Greenwich, England, crosses the Pacific ocean from north to south and divides a region of safek/doubt as to which day is Shabbat. This region's eastern boundary is a line 180 degrees east of Jerusalem, which lies between Hawaii and the US mainland; the western boundary is east of Shanghai. All countries in this region of IDL safek/doubt are island countries.
 
In a region of doubt, such as Tasmania, keep normal Shabbat (Shabbat d'rabanan) on local Saturday and keep Shabbat d'oraita on:

• West of mainland USA, but
• East of the IDL, and
• Not attached to the mainland.

• West of the IDL, but
• East of Shanghai, and
• Not attached to the mainland.

Note In all cases, you must still observe regular Shabbat on Friday night/Saturday.
Situation
You are in a place near the International Dateline (IDL) in which you are not sure which day of the week it is halachically: Shabbat or, if you are east or west of the IDL, Friday or Sunday.
What To Do
On the Friday or Sunday in question, there is no shvut (d'rabanan prohibitions, including muktza), so you may do all melacha d'rabanan WITHOUT a shinui. You may:

• Ask or tell a non-Jew to do anything, including a melacha d'rabanan or d'oraita.
• Ride in a cab or car driven by a non-Jew.

• Use electricity--except for heat or light—including turning on a fan or air conditioner (heat and light are forbidden by the Torah).
• Use the telephone. (Using a cellphone may be permissible--ask a rabbi).

• Carry from a private domain (reshut ha'yachid) to another private domain, even through a public domain (reshut ha'rabim); but you may not stop walking in the public domain and you may not put the object down in the public domain unless you use a shinui.
• There is no practical way to light candles, even using a shinui, but a non-Jew may light them for you and and you may say the blessing on the candles.
• Swim, surf, scuba dive, climb, and play all games that do not use melacha. You may not wring out clothes and if you are swimming or scuba diving, your swimsuit or wetsuit must be clean.
• Walk any distance (there is no techum Shabbat d'oraita).
• Kinyan. You may acquire items.

• Fly, including check in and getting on plane if:
  • The pilot is non-Jewish, and
  • You don't do any melacha d'oraita (including any writing) without a shinui.
• Use a computer if it automatically goes to sleep after less than 24 hours of not being used.
• Shower. However:
  • You may not use an “instant on” hot water system in which the water is heated as you use it; you may only use the hot water if it has a holding tank.
  • You may use only liquid soap; hard soap is forbidden.
• Ingest medicine (but you may not smear it on skin).
• Use some make up, such as rouge, mascara, eye shadow. You may not use lipstick.
• Open a refrigerator with light (and all other psik reisha d'la neicha lei).

• You may buy necessities on Friday or Sunday as long as:
  • The store owner is not Jewish (or if he/she is Jewish, does not write or print a receipt),
  • You do not write, and
  • There is no reshut ha'rabim.

You may also do melacha d'oraita if:

• You use a shinui (non-normal way of doing that action--this is forbidden d'rabanan on Shabbat but is allowed on the Friday or Sunday in question), OR
• Two or more people do the melacha together.

 
D'oraita, you may not:

• Cook food.

• Turn on lights (but you may turn them off).
• Carry from domains.
• Boneh – building any permanent structure.
• Write two or more letters of the alphabet.
• Drive--there is no practical way to drive using a shinui.
• Shave--there is no practical way to shave using a shinui.
• Use toothpaste (but you may use tooth-cleaning powder).
• Use skin cream--you may dab it on without smearing it.

However, you may do these following actions with a shinui on the Friday or Sunday in question, as follows:

• Cook food. You must put food in the cooking utensil first, then turn on the heat with shinui. You may turn off the heat even without a shinui.
• Turn on lights (such as with your elbow).
• Stop along the way when carrying from a private domain (reshut ha'yachid) to another private domain, even through a public domain (reshut ha'rabim). As a shinui, you may carry the object in your mouth (as long as it is not food), etc.

Note Carrying something in your pocket is NOT a shinui.

• Tear paper (such as putting toilet paper across knees and moving the knees apart).
• Write (such as with the opposite hand).

Flying East From Australia on Sunday If You Cross IDL from Friday into Saturday

To say any after-blessing/bracha achrona (al ha'michya, al ha'gafen, al ha'eitz, borei nefashot, or birkat ha'mazon), you must:

• Eat at least the minimum volume (1.3 fl. oz.--39 ml, or 1/6 cup) of solid food within four minutes, or
• Drink at least 3.3 fl. oz. (99 ml) of liquid within 30 seconds.

If Did Not Eat Minimum

Do not say bracha achrona if you did not eat 1.3 fl. oz. (39 ml) within four minutes.

If Did Not Drink Minimum

Do not say bracha achrona if you did not drink 3.3 fl. oz. (99 ml) of any potable liquid within 30 seconds. Note You may not combine the volume of solid food to liquid food or liquid food to solid food that you ate and drank in order to make the minimum volume for an after-blessing.

If Did Not Eat or Drink Minimum

Size: How To Calculate

Ounces: Weight or Volume

The minimum quantity for saying after-blessings is based on volume, not weight. If you eat a pack of pretzels whose volume is 1.3 fl. oz., even though the label says it only weighs 0.5 oz., you would say an after-blessing of al ha'michya.

Figuring Volume

Figuring Volume: Non-Mezonot Foods

You may not include the volume of fish or meat or other foods eaten together with bread or matza in order to reach a total volume of 1 fl. oz., which is required for saying the after-blessing of birkat ha'mazon. However, you may combine the volumes in order to say borei nefashot.

Figuring Volume: Unswallowed Pits/Seeds

When eating foods with seeds or pits (olives, pomegranates, etc.), do not include unswallowed seeds or pits to reach the 1.3 fl. oz. (39 ml, or 1/6 cup) minimum volume needed to say an after-blessing. You may include only what you have swallowed.

D'Oraita Cases

For d'oraita cases (halachot from the Torah), such as eating matza at seder or drinking wine for kiddush, we use a more stringent minimum measure:

• Eat at least 1.9 fl. oz. (56 ml) of solid food within four minutes, or
• Drink at least 4 fl. oz. (119 ml) of liquid within 30 seconds.

Timing

When To Start Counting

You may start counting the period of four minutes (for eating at least 1.3 fl. oz.) or 30 seconds (for drinking at least 3.3 fl. oz.) any time after the fore-blessing as long as it is continuous from when you first swallow until you have swallowed the minimum amount.

Categories of Batel/Nullification
Categories of nullification of non-kosher ingredients:

• Never batel.
• Batel b'shishim when the non-kosher substance is less than 1/60th of the total volume of the food.
• Batel barov when the non-kosher substance is less than 1/2 of the total volume of the food.

When Can a Non-Kosher Substance Be Nullified in a Mixture?
Whether a non-kosher substance can be nullified in a mixture depends on 3 factors:

• Whether the owner is Jewish;
• Whether the intended eaters are Jewish; and
• Whether the non-kosher substance was added intentionally as non-kosher.

If the answers to all three cases is yes, the food is never batel.

Food “Nullified in 60 Parts”:
Accidentally Adding Non-Kosher to Kosher Food 

• Less than 1/60 of the volume of the whole.
• Mixed in and not lying on the surface.
• Not intentionally added by a Jew.
• Not listed in “Foods that Never Become Nullified” (below).

Min b'Mino
Substances are only batel when they are similar (“min b'mino”). The substances must be the same type, have the same taste, and have the same appearance (the eater cannot identify them as being different).
Note In such situations, it would be batel barov from Torah (d'oraita) but batel b'shishim (1/60^th) by rabbinical order (d'rabanan).
Example A piece of non-kosher meat is mixed in with kosher meat of more than 60 times the volume of the non-kosher piece. The non-kosher meat is batel b'shishim.
Note As a practical matter, this can only apply to ground meat.
Counter Example Non-kosher chocolate syrup or a non-kosher flavored extract mixed into milk or other liquid or onto a solid would NOT be min b'mino even though both are liquids, since their appearances, flavors, and substance are different.

Too Thin To Make Non-Kosher

• Yayin Nesech
  Wine that has been offered to a pagan god or used for idolatrous purposes (yayin nesech) is forbidden in any amount!
• Mixtures of Milk and Meat
  Mixtures of milk and meat are not ever batel if they were cooked together.
  ExceptionBatel in 1/60^th if:
  • You cannot identify either substance AND
  • The mixture is liquid in liquid or solid mixed with solid.

Examples: Milk from a pig mixed with milk from a cow; ground kosher meat mixed in with ground non-kosher meat.

• Chametz

• Jew Intentionally Adding Non-Kosher Item

• Unflavored or Flavored Non-Kosher Ingredient
  
  Non-Jew Adds Unflavored Non-Kosher Ingredient
  

  Situation A non-Jew adds a non-kosher ingredient that has no flavor. 
  Status The non-kosher ingredient is nullified if less than 1/2 of the total (it does not need to be less than 1/60th--batel ba'shishim).

  
  Non-Jew Adds Flavored Non-Kosher Ingredient

  Situation A non-Jew adds a flavored non-kosher ingredient even if to impart flavor.
  Status The non-kosher ingredient is nullified in 60 parts (batel ba'shishim).
  

  Note If a Jew had told the non-Jew to add the ingredient, the mixture is non-kosher, just as if a Jew had added it. 
• Stam Yeinam Added to Water
  Situation A non-Jew adds—to water--stam yeinam (uncooked/non-mevushal) wine that has been handled while open by anyone other than a shomer-Shabbat Jew.  
  Status As long as the wine is less than 1/7th of the final volume, the mixture is kosher. 

  Note For mixtures with liquids other than water, consult a rabbi. 

• Essential Additives

• Food Bought by the Piece

• Important Food

• Permissible in Future (Davar SheYesh Lo Matirin)

• An egg laid on Shabbat will not be nullified by being mixed with eggs laid before Shabbat.
• Matza made of chadash flour will not be nullified by being mixed with matza made from yashan flour.

• Whole Insects

• Frozen or raw chopped or ground vegetables or spices may be considered kosher even without supervision.
  Reason We assume that any bugs in the food would have gotten partly chopped or disintegrated and therefore nullified.
• If a recipe calls for chopping or grinding herbs or vegetables, you may do so without first checking them for bugs.
  Note However, if you know there are bugs, you may not chop the food for the purpose of making the bugs nullified:  You must still check for insects before cooking or eating the food and if you see any bugs, you must remove them.

By Sara-Malka (Diane) Laderman

Kosher (Hebrew for “fitting” or “suitable”) means foods that comply with certain laws. Kosher rules could be summed up like this:

• The food must start out kosher. 
• The food must stay kosher during processing.

Starting Out Kosher
The Food's Natural State

Rule #1

Plants
All Plants, Raw, Are Inherently Kosher

All raw, unprocessed plants are kosher. However, restrictions on produce grown in Eretz Yisrael may apply (teruma, ma'aser, shmita), and orla may apply to produce grown anywhere in the world.

• For laws about eating perennial fruits, see appropriate listings under Agriculture. 
• For laws regarding bugs in plant produce, see below.

Rule #2

Mammals
All Mammals that Chew Their Cud and
Have Split Hooves Are Inherently Kosher

Kosher mammals are all cud-chewing, split-hooved animals (Leviticus/Vayikra 11:1-8 and Deuteronomy/Devarim 14:3-8). Included are both domestic ("beheimot"--goat, sheep, and cow families ) and wild ("chayot"--deer, giraffe, and wild goat and sheep families) mammals. There are two (sometimes) practical differences between the two groups:

• You may eat the cheilev (a type of fat) from a wild kosher mammal, and
• After slaughtering, you must cover the blood from a wild kosher mammal but not a domesticated kosher mammal.

Below is a sampling of kosher mammals:

Hooves

Q: How can you tell if an animal has split hooves?

A:
1)  Split Hooves Must Be Hooves

Hooves must be made of hoof material--a hard substance similar to your fingernails—not fleshy feet.

2)  Split Hooves Must Be Split

Hooves must be split all the way through from front to back.

Cud-Chewing

Q:  How can you tell if an animal chews its cud?

A:  Watch for the sliding ball.

When a cud-chewing animal starts to eat, you will see it bolting down its food into its first stomach, like a hungry 9th grade boy (much like humans racing to throw groceries into their shopping carts), in case a lion or bear is coming to eat him or her.

Next, it will find a safe place to more leisurely bring up its cud and chew its stash. During cud-chewing time, especially for goats (sheep are usually too woolly to make out shapes), you will distinctly see:

• Racketball shape popping up the goat's throat, 
• Goat's cheeks ballooning out and its lower jaw chewing in a horizontal figure-eight pattern, and, a little later,
• Racketball shape sliding down the throat again.  

You will soon see the shape of a new racketball pop up the throat.

By contrast, a non-kosher animal will chew slowly and well the first time—it will not have another chance to chew its food later, like the kosher animals do.  

Imposters

Animals in the camel family (camel, llama, alpaca, vicunya, etc.) appear to have split hooves when seen from the front.  These are actually just two long toenails in front of a padded, fleshy, incompletely split foot, which you can easily distinguish as a whole foot when looking from the back.

One non-kosher animal has great-looking split hooves but doesn't chew its cud—animals from the pig family.

Insight from Masechet Chullin

All kosher mammals inherently have horns; all non-kosher animals are hornless.  Bottom line:  If you find a horned animal, it's definitely kosher.

But horns are not a halachic requirement from the Torah like split hooves and cud chewing are, which is a good thing, since some breeds of goats, sheep, and cows are naturally “polled” (born hornless) or their horn buds were removed when they were young to prevent damage later.

Rule #3

Fowl
All Fowl That Have “Masoret” Are Inherently Kosher

Not everyone's agreed as to what the Torah means by a “netz” or a “yanshuf.”  So when Leviticus/VaYikra 11:13-19 lists the 20 non-kosher flying species—allowing us to eat anything NOT on the list—we ignore the list and just eat what we know our ancestors traditionally ate as kosher.  This tradition is known as masoret.

In the US, we eat all breeds of chickens and--in most circles--turkey, all breeds of goose except those whose beak is black (such as the Canadian goose) or whose beak does not go straight back to its forehead (like the Chinese goose), and Peking duck (we don't eat mallard or Muscovy ducks or their close relatives).

In Israel, additional birds eaten as kosher include mallard and Muscovy ducks, guinea fowl, Couternix quail, pigeons, and turtle doves.

Note Some Jewish families originating in Germany, Iran, and other places maintain their masoret on eating pheasant, and you may be able to receive masoret on various species from researchers such as “The Aris”--Dr. Ari Greenspan and Rabbi Dr. Ari Zivotofsky, both Jewish ritual slaughterers (shochtim) who have spent the last 20 years interviewing and videotaping elderly European and Sefardi immigrants to Israel as to what birds they ate as kosher in their home countries. You can google their work or read some of Dr. Zivotofsky's articles on www.kashrut.com.

Zivchei Cohen, a book written and published by a Jewish ritual slaughterer (shochet) in Italy, shows colored illustrations of 29 species known to be kosher, including peacock, pheasant, Couternix quail, mallard duck, and numerous songbirds.  Maor L'Masechet Chullin U'Vechorot (vol. 2, Feldheim, pp. 29-33) reproduces these colorful illustrations and names each bird in five languages, noting that the 29 were listed to acquaint students of Jewish ritual slaughter (shechita) only with rarer birds' identities and that the well-known kosher species were not included in the 29!

Chazal noted that kosher birds share certain characteristics:

• They sit on a branch with three toes in front and one in back.  Non-kosher birds usually sit two and two, as they need equal strength on both sides of their feet for killing and carrying off food, except for:
  • Owls, whose feet are flexible and can move their toes to the side, forward, or back, and 
  • Vultures, who need balance walking instead of gripping, since they walk on the ground to eat food that is already dead.
• They lay eggs that are not entirely round or oval but are, well, egg-shaped, with kad v'chad—a rounded end and a pointed end. Not all egg-shaped eggs are kosher, but all totally round eggs, if from fowl, are not kosher (fish eggs from kosher fish, which are perfectly round, are of course kosher). There are some eggs, including from doves, that seem perfectly oval but are actually kosher.

Rule #4

Fish
All Fish That Have Fins and Scales Are Inherently Kosher

This excludes most eels (some conger eels that have kosher scales are kosher!) and all shellfish, catfish, sharks, swordfish, sea urchins, jellyfish, sea slugs, and many other sea creatures.

In addition to commonly eaten kosher fish such as salmon and tuna, some unexpected fish are also kosher, including barracuda, goldfish, and many other pet and tropical fish.

Rule #5

Grasshoppers

All other creatures, except the four kosher locusts, are not kosher. Rule #6

Kosher from Kosher
Whatever Food Substances Come Out of a Kosher Animal Are Inherently Kosher…

except for some fats (cheilev), blood, and the sciatic nerve (gid ha'nashe).

Milk from a cow (a kosher animal) is kosher. Milk from a pig (a non-kosher animal) is not. An egg from a kosher bird is kosher; an egg from a non-kosher bird is not kosher.
Exception

Q:  Since bees are not kosher, how can we eat honey? 

A:  Honey is not produced from bee parts, but rather from flower parts.

Rule #7

Animal Blood
May Not Be Eaten in Any Form.

Note Fish blood is not forbidden.

Preparing Kosher
Harvest and Kitchen

Plants

What To Check

• Remove bugs (see Why Bugs May Not Be Eaten)
• Select fruits and vegetables that have no harvest-related problems such as orla (and in Eretz Yisrael, kilayim, shmita, etc.); separate out teruma and ma'aser from any Israeli-grown produce that requires it (see Teruma/Ma'aser: Ownership: What Is Hefkeir Produce)
• Make sure that any liquid grape product to be handled by a non-Jew for a Jew has been cooked or pasteurized before being handled.  Cooking turns the wine into an inferior product disqualified for use in idolatrous practices.

Animals

Mammals

Slaughter/Shechita

Kosher mammals must be slaughtered in the quickest and most humane manner possible, according to halacha.  A highly trained ritual slaughterer (shochet) must perform the slaughtering (“shechita”).  He checks the knife before the slaughtering to ensure there are no burrs to catch on the animal's throat.  He says the blessing “al ha'shchita” and then cuts the windpipe and the esophagus as well as the neck arteries.  After slaughtering, he checks the knife again for burrs (if he finds one, the animal is not kosher) and checks the animal's lungs to make sure the animal wasn't about to die of lung perforation in the near future.  

Certain types of adhesions may be found on the animal's lungs. If they can be removed (by peeling) without perforating the lungs, the meat is kosher. If there are only small and easily removed lesions, the meat is glatt (“smooth”). If there are no lesions at all, the meat is classified as “Beit Yosef.”

Kosher lamb and goat are always glatt/chalak kosher.

Actually, there are 18 organic or physical defects that may make meat non-kosher but, as a practical matter, we only check for lesions in the lungs and also in the second stomach. 

If the animal proves to have been healthy, it is sometimes hung upside down to allow the arterial blood to drain out. (It is possible to hang the animals before being slaughtered but this is not the usual method). 

Skinning and Traiboring

The animal is skinned.

Next, the animal is traibored. Traiboring removes certain nerves, sinews, blood vessels, and fats that we don't eat, including the sciatic nerve damaged when our forefather Jacob wrestled with the angel at the Jabbok stream.  

In the US, only the forequarters are traibored and eaten, and the hind portion is sold to the non-Jewish consumer. In Israel, the hind portion is traibored too and eaten as kosher.

May you traibor meat once it's cooked?  And if not, how did Jews traibor more than 1 million Passover lamb offerings that had to be slaughtered and prepared between midday and evening (and it takes 2-3 hours to traibor one lamb!). The Jewish commentator The Raavad says the Passover lamb was traibored before roasting; Rambam disagrees, since the lamb had to be roasted whole. Rambam opines that the sinew, unlike fat, does not impart its flavor to the meat and that people would just traibor the Passover offering meat on their plates.

Removing Blood

The next steps involve removing blood (“kashering”) and can be done at the butcher's or at your home.  The meat is cut, rinsed, soaked for at least 30 minutes, put on a slanted board to allow the blood to run off, and covered with kosher (a coarse) salt for one hour.  After being rinsed three more times, the meat is now kashered.

Preparing the Liver

The liver is cut halfway through several times and covered with kosher salt top and bottom.  You can oven broil the liver on a rack reserved for that purpose. The blood must be able to drain away from the liver 

You can instead broil the liver over a fire outdoors.  Grilling outside will give the liver a delicious smoky flavor that even children like--but do NOT allow the neighborhood cats to steal your livers off the grill!  

Fowl

Covering Blood

Kosher fowl is slaughtered and, when it stops flapping, is usually hung upside down to allow the arterial blood to run out and onto the earth. Cover all the blood with dirt (a mitzva from the Torah--mitzva d'oraita) and say the blessing “al kisuy dam b'afar.”

Defeathering

Rinse with water and remove the feathers. Defeathering can take a while for chickens and up to two hours for one small duck, especially if you are saving the down!  

Removing Internal Organs

Rinse the bird. Usually, a circle of flesh surrounding the anus is cut out.  Start pulling out the digestive system.  Recognizable items such as the liver, heart, and giblets will come out and eventually you will be able to stick in your hand and pull out the lungs.  This is not as cold and unpleasant as it sounds because the bird will be warm for quite a while.

Salting

Once the bird is defeathered and the internal organs have been removed, rinse and salt with kosher salt inside and out and put it on a slanting board for an hour. Rinse three more times and cook!

Preparing the Giblets

Cut off the hard coating at one end of the giblets and rinse out the fine sand within. Remove the yellow internal lining.  Salt and kasher with the rest of the bird.

Preparing the Liver

To kasher the liver, see Preparing the Liver, above, for meat liver.

Fish

Buying Fish

Kosher fish bought from a store in which non-kosher fish are also sold should have any cut surfaces scraped and should be rinsed before using. Ideally, the knife that cuts the fish should be washed with soap and water beforehand. 

Grasshoppers

Chagav Grasshoppers

Not much preparation needed here. Many Yemenites just twist off their heads and eat. B'tei'avon!

Substances from Animals

Milk

Dairy must be kept separate from meat, with a separate set of pots, pans, servers, scrubbers, and dishpans each for dairy and meat. See Kashrut: Dairy/Meat Combinations.

Eggs

Eggs must be checked for blood spots.  Throw out a fertilized egg with a blood spot. You may remove the blood in the white of the egg and eat the rest of an unfertilized egg, but the custom is to not eat the egg at all.

Unwanted Additives

Manufacturing Aids

In the US, food manufacturers are allowed to add “manufacturing aids”--even more than 1/60th of the volume of the other ingredients--without listing them. Some foods therefore need special supervision to ensure non-kosher substances have not been added.

Examples

• Kosher oils may be deodorized by heating them in vats that previously contained non-kosher oil, which renders the formerly kosher oil non-kosher. Or they may be put into tankers previously used for non-kosher liquids.
• Food colorings may come from the cochineal insect, which is non-kosher, and flavorings may be derived from the musk of non-kosher animals.
• Cheeses may have non-kosher rennet or pig milk added. Also, the rabbis of thousands of years ago made an injunction that even where the ingredients are kosher, cheese still requires kosher supervision.
• Maple syrup in the vat may be stirred with bacon (which is non-kosher) to reduce the froth produced by boiling.  
• Candy may include non-kosher oil that is put into the molds so the candy does not stick.
• Kosher meat might not be kosher for Passover.

Transference of Taste (Ta'am)

Sometimes dairy will spatter onto a meat utensil, or someone will set a hot pot of kosher food into a non-kosher sink.  Or someone will cut a lemon or onion with a dairy knife and then put the lemon into a pot used for meat.  What happens next depends on whether the offending substance was:

1. Charif (spicy/sour/strong) enough to transfer the taste to the new item.
2. Hotter than yad soledet bo (too hot to hold your hand in it for a few seconds—about 120° F, or 49° C).
3. More than 1/60th of the total volume.

See following halachot for what to do next.

Kitchen Set Up

A hungry Martian landing in a modern kosher kitchen must assume earthlings eat in binary: Ideally, two sinks. Two dish towels.  Two sponges.  Two dishpans. Two cutting boards.  Even, if the owner is fortunate, two dishwashers.

And what about those strange markings on the pots, pans, and servers?  Perhaps he'll find a bright splotch of red paint or an “F” (for fleishig--Yiddish for “meat”) lettered in nail polish on utensils in the left cabinets.  Blue paint or nail polish, or an “M” (for milchig--Yiddish for milk) on utensils in the right cabinets. The plates, bowls, and silverware in left cabinets do not in any way match those in the right cabinets. Somewhere in a central cabinet, pots, pans, and servers are painted with a white dot, marked with a “P” for pareve, or left unmarked.

Opening the pantry, little symbols jump out from canned and packaged goods.  Star-K, O-U, O-K, KOF K…..  Only the dried beans and grains seem symbol-less.  And the freezer?  Well stocked but no frozen bacon, pepperoni pizza, and shellfish TV dinners.…

How do these people eat?

The Great Divide

Separating Dairy and Meat

Welcome to the world of dairy and meat. Most kashrut problems in the kitchen involve the transfer of milk or meat flavor to the other gender by means of heat or, less commonly, by hot/spiciness.

It's easy to be jealous of vegetarians, or people who only eat plants and dairy products or who only eat plants and meat products!  They never confuse their pots and serving utensils or deal with spatters of hot dairy foods onto meat utensils or vice versa.  Large institutions and kosher cafeterias, similarly, may not have these mix-ups, since they can usually devote a whole room to a dairy or a meat kitchen.

Here's how the rest of us live:

Countertops

If you can, designate some countertops for dairy and some for meat.  This will help you stay organized spatially.  If you have only one sink, you may need to use the counter to the left for one dishrack (dairy or meat) and the counter to the right for your other dishrack. 

Some countertop materials, such as granite, can be kashered by pouring boiling water over them.  This will make the counters kosher and pareve (neutral--not dairy or meat).  Once you have kashered your counter(s), you will be able to set down hot utensils, pots, and pans directly onto the counter (dairy utensils on your designated dairy counter; meat utensils on your designated meat counter). 

If your countertop is not kosher or kasherable, you will need to cover the countertop before setting down hot (above 120° F) utensils, pots, and pans. Trivets work fine but so does a simple piece of corrugated cardboard in a pinch.  

Dishes and Flatware

If feasible, select different patterns of dishes and flatware for dairy and meat so you can tell them apart.  It is helpful to store the dairy and meat dishes in separate locations, preferably close to the counter of its gender. Porous dishes (stoneware, china, ...) cannot be kashered once used for hot non-kosher food and cannot be changed from one gender to the other. Metal dishes generally can be kashered. Glass only assumes a gender if it is placed directly on a fire or other heat source (to at least boiling temperature) or into a hot oven, so even if you pour boiling water or hot food into a glass bowl, such as hot pasta, and add cheese or other dairy food, the bowl remains pareve (or whichever gender it was previously).

Sinks and Dishracks

If you don't have two sinks--one for dairy and one for meat--and must use the same sink for both, try to choose different colors for your dairy, meat, and pareve dishpans, dishracks, and sponges/scrubbers (or sponge holders). If not, distinguish your dairy dishpans, dishracks, and sponges/scrubbers (or sponge holders) from your meat ones by placing them on opposite sides of the sink. Neutral, or pareve, dishes/cookware require a third sponge and dishpan. In a pinch, you can wash dishes, pots, and utensils by holding them in the air or placing them on a counter (whether either kashered or not) next to the sink as long as the dishware, pots, etc., do not reach 120° F.  

Drawers

You can designate one drawer for dairy flatware and a second drawer for meat (and a third drawer for pareve). Color-coding or purchasing “dairy” and “meat” stickers to place on the outsides of cabinets and drawers can be especially helpful if anyone else will be cooking/washing dishes in your house and doesn't know your kitchen well.  

Cooking Utensils/Food Processors

Distinguish your cooking utensils (your choice of colors) for dairy, meat, or pareve by using paint or nail polish, using different patterns, or even different shapes (one person uses round baking dishes for dairy and rectangular ones for meat!). If you lack drawer space, hang utensils from the wall or overhead rack or put them on your counter in jars color-coded for dairy, meat, or pareve. In a pinch, colored electrical tape can be used temporarily to mark dairy or meat servers or serving pieces (until it falls off during washing or turns black in the oven…).

You will only need one blender, blending stick, bread machine, mixer, food processor, etc., if you always keep them pareve.  Otherwise, you may need duplicates of these items. Color-code them as well.

Stove Burners

To kasher a non-kosher stove burner, clean off any hard deposits on the grate, cover the burner with a sheet of metal (to hold the heat on the grate), and heat it full-blast for 45 minutes. (See halachot below for kashering burners by putting them in the oven.) 

Stovetop

A stainless steel stovetop can be kashered, but a ceramic one (due to porousness) might not be kasherable-consult a rabbi.  When cooking, place an appropriate spoon rest or bowl nearby (for dairy or meat, depending on what you are cooking) to hold your hot stirring spoon or spatula. This way, you won't need to set down your hot stirring utensil onto a non-kosher countertop or stovetop, or place a hot dairy stirrer where you previously set down a hot meat spatula.  

Oven

You can kasher a non-kosher oven by cleaning off any accumulation of old food (whether burned on or not, it must be removed) and turning up the oven full blast for 40 minutes.  You may use the same oven for dairy and meat foods if you always keep either the dairy or meat covered. Consider the oven to be one gender and always cover liquid foods of the opposite gender (dry foods do not require a cover).

Cutting Board

If you only have one cutting board for fruits and vegetables and one knife, you may want to keep them pareve. The main kosher problems with knives and cutting boards happen when cutting a fruit or vegetable with a strong-spicy taste that can transfer the milk or meat status of one utensil or food to another.  Such items are garlic, lemon, onion, and sour apples, and sour grapefruits.

Examples

• Garlic was chopped with meat knife on a dairy cutting board (rendering the garlic, the knife, and cutting board non-kosher), or
• Onions cut with a dairy knife were tossed into a boiling meat pot (rendering the pot and contents non-kosher unless the onions were less than 1/60th the volume of the pot's food). 

TABLE'S SET

Glasses, washed, can be used for a dairy or meat meal. You can use the same salt and pepper shakers and clean glasses for dairy and meat; however, it is recommended to use separate salt and pepper shakers since you might have food of one gender on your hands when you use the shakers of the opposite gender. If you typically use a table for serving either dairy or meat, and want to serve the opposite without switching tablecloths, lift the tablecloth and use the original table surface or cover the tablecloth with placemats. If one person wants to eat dairy and another wants to eat meat at the same time on the same table, place a reminder to remind them not to mix the foods (different placemats or tablecloths, physical barrier between the people's dishes, etc.).

COOKING FOR RELIGIOUS JEWISH FRIENDS

Let's say you don't keep kosher and want to have your kosher-observant friend over. What to serve?

As long as your utensils are clean, you chose kosher foods (see Going Shopping, below) or fresh fruits and vegetables, nothing gets 120° F or above, there is no involvement of anything spicy (charif), and you don't mix dairy and meat (don't offer a kosher bologna sandwich with kosher Swiss cheese!), everything should be OK. Some people will prefer if you serve them using disposable plates, bowls, flatware, and cups; if you are Jewish, you should only serve on disposables. Some will prefer to be in the kitchen during food preparation. Don't be offended; it's hard to keep track of everything to remember even in a kitchen set up for being kosher!

You might want to keep the wrappers or containers from any processed food so that the kosher guest can see what you actually are serving and check for the ingredients or for a kosher supervision symbol.

GOING SHOPPING

Major towns usually have at least one kosher supermarket, but you can find plenty of kosher food in regular supermarkets too. (Even in Salt Lake City, home of the Mormons, a major supermarket chain sells Empire Kosher Chickens!) Here are some tips:

• You may consider all fresh and uncut fruits and vegetables to be kosher. Sharp-flavored fruits and vegetables such as garlic, when cut, must be cut with a kosher utensil.
• Look for a kosher symbol (“hechsher”) on prepared foods (except those foods that do not need a hechsher—see When Hechsher Needed  and When Hechsher NOT Needed).

For more information on kosher symbols and on what goes into certifying a prepared food as kosher, see this link: http://kosherquest.org/symbols.php

WHY EAT ONLY KOSHER?

The basic reason that Jews only eat kosher food is because God commanded us to do so. There are many explanations of how eating kosher benefits us. One approach is that kosher food enhances the spiritual well being of the Jewish people. That holiness is blocked when we eat non-kosher.

While kosher food raises us up spiritually, we raise it up too. When we say the correct blessing before or after we eat, we acknowledge that God is the food's true source. When we use food's resulting health and strength to perform God's commandments, we reunite our food and ourselves with our higher purposes, “rectifying the world.” That brings spiritual and physical blessing down to us and to the world.

You don't want a rapacious spirit?  Don't eat predators. You don't want to think like a bottom-feeder? Don't eat scavengers—whether catfish or vultures or pigs—or reptiles, amphibians, or bugs (except kosher grasshoppers!). You don't want to be callous? Don't eat the life-blood of a bird or mammal—or even the bloodspot of an egg. You don't want to be cruel? Make sure the animals you eat were slaughtered quickly and humanely. Don't want to separate yourself from worshipping the Only One? Don't drink wine or grape juice that could have been used for idol worship.

And non-Jews? Shouldn't they keep kosher too?

Non-Jews must keep only one kosher law--aver min ha'chai. This means non-Jews, like Jews, may not cut off and eat the limb of a live animal.

We can come up with numerous explanations for why keeping kosher is healthier, more pleasant, more logical, or more spiritual than eating non-kosher. But the bottom line is, we do it because God says to, we are here to serve Him, and we trust that God wants what is best for us!

Gender/Kashrut Status Transfer
Foods and kitchenware (pots, pans, dishes, utensils, and containers) can absorb taste from each other and so adopt a new gender or kosher status. They can change from:

• Kosher to non-kosher,
• Kosher pareve (neutral) to kosher dairy or kosher meat, or
• Kosher Passover to kosher (or non-kosher) non-Passover.

 
Note You can sometimes change a utensil/container to kosher-pareve (see Kashering, below), but you cannot change a

• Gendered food to neutral-pareve, or
• Non-kosher food to kosher.

 
Taste Absorption
Taste gets absorbed in three ways: Heat, pressure, and soaking. 
 
Heat
To absorb taste, and therefore gender or kashrut status, through heat, a food or utensil must be heated to 120° F or more while:

• Steamed with a halachically “liquid” food, or
• In wet physical contact with the food or utensil.

Examples

• Two hot pans, which are clean on their outsides, only transfer taste from one to the other if they are wet on the outside and are touching each other.
• A hot utensil placed onto a counter only transfers gender to the countertop if there is liquid or food at the point of contact.

Note  All liquids plays a major role in facilitating taste transfer.
NOTE Taste, gender, or non-kosher status do not travel upstream into the utensil that food is being poured from. Even if you pour hot liquid (pareve or of one gender) from a pot onto a non-kosher or opposite gender food, the genders are not transferred back through the stream of liquid to the pot, even if any or all of the elements are more than 120 degrees.
Situation You pour hot liquid from some pareve vegetables into a non-kosher sink that had hot in it within 24 hours. There are dishes or utensils in the sink.
Status The dishes do not change gender unless the hot liquid fills up from the sink onto them. If so, the dishes or utensils become non-kosher. But no gender change occurs through the stream of liquid back to the pot of vegetables.
 
Note If the non-kosher sink had not had anything hot (120 degrees or above) in it for at least 24 hours, no change of gender or kosher status happens at all.
 
Note On Passover, gender and chametz status DO get transferred through a stream of hot liquid.
 
Pressure
To absorb taste, and therefore gender or kashrut status, through pressure or short-term soaking, one of the items must be spicy/charif.
 
Soaking
To absorb taste, and therefore gender or kashrut status, through long-term soaking, the food must soak for specific amounts of time.
 
Note If the food or utensil is not hot (120° F or more), is not spicy/charif, and is not soaking for a long time, there is no gender or kashrut-status transfer.
Examples
You may use a non-kosher utensil for any cold food of the opposite gender, so you may:

• Eat cold (kosher) cereal out of a meat or non-kosher bowl, or
• Use a meat or non-kosher spoon to eat kosher ice cream.

Note Even though these are permissible, they may not be done regularly but only on an ad hoc basis.
 
Food and Kitchenware: Which Influences What
Hot or Spicy/Charif Foods
With hot (more than 120° F) or spicy/charif foods:
Foods and utensils/containers transfer taste to each other.
 
Cold or Non-Spicy Foods that Soak
With cold (less than 120° F) or non-spicy/charif foods that soak:

• Foods do not transfer taste to utensils/containers;
• Utensils/containers do NOT transfer taste to foods.

NOTE No substances (not salt, or any food...) absorb gender from the open air.
 
 
The 24-Hour Rule: Eino ben Yomo
Torah Law: Reverts to Kosher-Pareve
By Torah law, a utensil/container always reverts to kosher-pareve after 24 hours (since the taste of any absorbed food becomes ruined with time). 
 
Rabbinic Law: Must Be Kashered
However, by rabbinic law, the utensil/container must be kashered before using.
 
NOTE Even by Torah law, a hot or spicy/charif food can revive the milk-meat or non-kosher status of another utensil/container (see below) even after 24 hours.
 
Accidentally or Intentionally
Food Hot and Accidentally Placed; Utensil Not Hot for 24 Hours
Kosher food hotter than 120° F (49° C) remains kosher if accidentally placed into a non-kosher, clean utensil that has not been heated to 120° F or more for at least 24 hours.
REASON After 24 hours, b'di'avad, the utensil has reverted to being kosher-pareve.
NOTE If the utensil had been “used” (heated to 120° F or more) within the preceding 24 hours, the hot food that accidentally entered the utensil would be non-kosher. Ask a rabbi for possible exceptions.
 
Food Hot and Intentionally Placed
If the hot food had been put into the utensil intentionally, the food would not be kosher.
REASON Chazal made a rule (takana) that if you intentionally place food of one gender into a utensil of the opposite gender and heat it to 120° F or more, the food is not kosher.

The synagogue (shul) prayer service may confuse the unfamiliar. Here is a brief guide to following the congregational prayers.
 
Ends/Beginnings of Paragraphs
Each individual says most of the prayers, but the leader sets the pace. He says out loud the last line or two of many paragraphs (and sometimes the next paragraph's first few words), to help others find where he is in the prayers.
Hint If you get lost, listen to the leader and try to find those words at the beginning or end of one of the paragraphs near where you think you should be!
 
Saying Amen
When the prayer leader/chazan says a blessing (Baruch ata adonai...) and finishes the final word, everyone usually replies amen.
 
Baruch Hu U'Varuch Shemo
It is common (but not required) to say baruch hu u'varuch shemo after hearing God's name (Adonai) when it is said in a blessing.
This list mainly includes the parts of the prayer service that are said together or when in synagogue, not those said individually or at home.
NoteIf you need to use the toilet between baruch she'amar and yishtabach, say asher yatzar after saying yishtabach and before saying yotzeir or.
 
The initial blessings beginning with asher natan... through the end of ven brit may be said at home.
 
Ma Tovu
Upon arriving in synagogue in the morning, say Ma tovu....
 
Talit
Married men (and also those with a tradition to wear a talit from bar mitzva age) normally put on their talit gadol on all days (except Tish'a b'Av morning).
For more details, see Talit (Gadol).
 
Tefilin
On weekdays, all men put on tefilin. They do not interrupt putting on tefilin to respond to other's prayers, not even to say amen. 
For more details, see Tefilin.
 
Birchot HaShachar/Initial Blessings
If you have not yet said the initial blessings beginning with asher natan... through the end of ven brit, say them once you are in synagogue and after you have put on talit/tefilin (if relevant).  
Everyone stands while the prayer leader reads the initial blessings aloud.  They say amen after each one. 
 
L'Olam Yehei Adam/Shema
L'olam yehei adam is said quietly, with everyone saying the shema line together.
 
Order of the Sacrifices
Some read (quietly) the order of the sacrifices.
 
13 Principles of Talmud Explanation/Kaddish

• The 13 principles of how the Talmud is explained are read quietly.
• Kaddish is said by any mourners.
• Everyone says, amen, yihei shmei raba...

 
Mizmor Shir/Kaddish

• Mizmor shir is read quietly.
• Another kaddish is said by the mourners.

Baruch SheAmar
            Baruch she'amar is said by everyone, standing.  The leader says the final blessing out loud.
 
Verses (Psukim)
The following several pages are verses (psukim) from various sources, said by everyone quietly.
Mizmor L'Toda/Yehi Chevod

• Everyone stands to say mizmor l'toda quietly (just for this paragraph).
• The next paragraph (yehi chevod) is read quietly.

 
Ashrei and 5 Psalms
Ashrei and the following five psalms (#146 to 150) are said quietly by everyone; the leader says the final line or two out loud.
 
Baruch Adonai L'Olam Amen v'Amen
Baruch adonai... is said by the leader.  
 
VaYevarech David
The next section (from va'yevarech David until after bar'chu) is said quietly by everyone while standing.
 
Shirat HaYam
Shirat ha'yam is read quietly by everyone.
 
Yishtabach/Kaddish
Yishtabach is said quietly by everyone together. The leader says the final line of yishtabach out loud and then kaddish.
 
Bar'chu

• The leader says Bar'chu et Adonai ha'mevorach.
• Everyone bows from the waist and replies (aloud), Baruch Adonai ha'mevorach l'olam va'ed (which is then repeated by the leader).
• Everyone says the blessing's ending ...u'vorei et ha'kol.

 
Shema and Its Blessings
The next paragraphs lead up to the shema:

• Leader says, “Et shem ha'el...”
• Everyone says aloud, together: Kadosh, kadosh, kadosh... and Baruch kevod Adonai mi'mkomo.
• Leader says the final line or two of La'el baruch ne'imot... and everyone responds amen.
• Everyone says ahavat olam quietly.
• Leader reads the final lines aloud.
  Note It is the custom to not say amen to the blessing before shema.
• Everyone says the first line of the shema together and aloud, but Baruch shem... silently. 
• Everyone reads the shema individually, and the leader repeats out loud Adonai eloheichem emet.
• Everyone reads the next paragraphs, through ezrat avoteinu, together, quietly.

 
Mi Chamocha
Stand for Mi chamocha until after the amida.

Adonai Yimloch
Everyone reads together and aloud: Adonai yimloch... until the final blessing before the amida.
Note At some time before completing that blessing, step back far enough (one large step is fine) so that you can take three small steps forward to begin the amida. If there is no room to step back, you may pray the amida without stepping forward.
 
The Amida
Amida: Details and Direction
For more details on saying the amida, see What To Pray: Set Prayers: Amida
For where to face during the amida, see Amida: Location: Where To Face
 
Stepping To Begin the Amida
After saying ga'al Yisrael, symbolically approach God by taking three steps forward (any size of steps is fine):

• Step forward with your right foot,
• Step forward with your left foot, and
• Step forward with your right foot.
• Bring your left foot to meet the right one, so that both feet are touching at the heels and at the balls (so that you are standing as if you had one leg, like the angels!)

Bowing in the Amida
Next, with your feet still together, do knee-bowing at the start and end of the first paragraph.  You will also be bowing at:

• Beginning of modim (waist-bowing).
• End of modim (knee-bowing at Baruch ata Adonai of the blessing ending u'lecha na'eh l'hodot).

           
Slach Lanu
In slach lanu, when saying ki chatanu and ki fashanu, hit your chest over your heart with your fist.
Reason We are saying that we sinned, so we strike our heart for leading us astray.
 
Ending the Amida
Symbolically take leave of God by taking three steps back after Adonai tzuri v'go'ali:

• Step back on your left foot,
• Step back on your right foot,
• Step back on your left foot (and then place your right foot next to your left foot).
• Bow to the left while saying Oseh shalom bi'mromav...,
• Bow to the right while saying Hu ya'aseh shalom alenu, and
• Bow to the middle (straight in front of you) while saying Ve'al kol yisrael v'imru amen.

Then pause for at least three seconds before walking forward or sitting down.
 
Reader's Repetition of Amida
At kedusha, everyone stands (even if they were sitting so far for the amida's repetition) with their feet together, again imitating the angels who only have one leg.

• The leader says nekadeish (in some places, everyone says nekadeish).
• Everyone says the next line together (kadosh, kadosh, kadosh...).

• After the leader says Halleluya, everyone else may move their feet (or sit down, if that is their custom).
• On fast days, the leader says an extra paragraph in shacharit (other paragraphs in mincha are said by everyone).

Tachanun

When To Say Tachanun
Tachanun is usually said on weekdays.

How To Say Tachanun
Tachanun is said differently, depending on if there is a Torah scroll in the room, as follows:

• Say Va'yomer David sitting down, while resting your head on your left arm (unless you are wearing tefilin on your left arm, in which case lean onto your right arm). 

• When you reach shomer Yisrael, lift your head up and sit normally while saying the paragraphs until v'anachnu lo neida ma na'aseh.
• Before saying “na'aseh,” stand up for the remainder of tachanun.

• Say tachanun standing until Va'yomer David... at which time, everyone sits down.
• Follow the directions above for the remainder of tachanun.

 

Hallel

• When hallel is said, most of the psalms are said quietly by everyone.  (In some synagogues, several of the psalms are sung in unison.)
• The lines beginning Hodu l'adonai... are read aloud by the leader.
• Everyone else responds aloud, Hodu l'adonai... and reads quietly the next line (which the leader then reads aloud when they finish).
• Similarly, Ana adonai is read responsively by the leader, followed by everyone else.

 
Kaddish
The leader says kaddish out loud.
 
Torah Reading (Mondays and Thursdays)

• Everyone reads quietly the phrases va'yehi be'nso'a... and brich shmei.
• The Torah is taken out and carried to the bima.
• As each man (called an oleh) is called up to the Torah:
  • The oleh says Bar'chu...
  • Everyone responds Baruch Adonai....,
  • The oleh repeats that line and says a blessing.
  • Everyone answers amen.
• After each reading, the oleh says one more blessing and everyone replies amen.
• After the third aliya, the Torah is lifted up.
• Everyone says, V'zot haTorah....
• The Torah is rolled and wrapped.
• Meanwhile, the leader reads four paragraphs beginning, Yehi ratzon mi'lifnei avinu...
• The final paragraph, Acheinu kol bet yisrael... is read by everyone aloud.
• The Torah is put back while everyone reads two psalms quietly.

 
Ashrei/U'va L'Tzion

• Everyone reads ashrei quietly, followed by la'menatzeiach and u'va l'tziyon.
• Everyone together says, Kadosh, kadosh, kadosh and Baruch kevod.

 
Kaddish
The leader says kaddish.
 
Alenu
Everyone says alenu together.
 
Kaddish
Mourners say kaddish.
 
Psalm for the Day
Psalm for that day is read by everyone.
 
Kaddish
One more kaddish is said by the mourners.
 
L'David

• During Elul and into Tishrei, L'David is read by everyone.
• One more kaddish is said by the mourners.

 
Praying Ma'ariv
 
V'hu Rachum
Everyone reads the two introductory lines of v'hu rachum.
 
Bar'chu

• Leader says bar'chu.
• Everyone else responds, baruch Adonai....
• The leader repeats that line.
• Everyone reads the next paragraph/blessing.
• The leader says that final line out loud.
• Everyone responds amen.

Note Don't say baruch hu u'varuch shemo at all during ma'ariv.
 
Shema and Its Blessings

• The leader repeats the final two words of the shema and the word emet.
• Everyone continues quietly saying the phrases until Mi chamocha.
• Mi chamocha is said by everyone together including by the leader, who then also reads the next line.
• Everyone says Adonai yimloch... together, continuing through the end of the next blessing, which is repeated by the leader.
• Everyone says hashkiveinu quietly.
• The leader says the blessing shomer amo Yisrael la'ad out loud.
• Baruch Adonai l'olam... is said through to the end by everyone quietly.
• The leader says the final line and the final blessing out loud.

Note Baruch Adonai l'olam is not said in Eretz Yisrael.
 
Kaddish
The leader says kaddish.
 
Amida
Everyone says the amida silently and individually.
 
Kaddish
The leader says kaddish.
 
Alenu
Everyone says alenu together.
 
Kaddish
Kaddish is said by any mourners.

 

Lashon ha'ra is saying (or communicating in any way--even by rolling your eyes, winking, etc.) anything derogatory or negative about someone that can hurt him or her in any way--by causing embarrassment, loss of money, lowered esteem, bad reputation, etc. 
 
Lashon ha'ra in which you attribute the negative statement about the person to whom you are speaking to someone else is called rechilut (gossip). 
 
Lashon ha'ra that is false is called motzi shem ra. Saying something that is true is not lashon ha'ra if it is being said for a positive purpose (even though the same words would be lashon ha'ra if they were only intended to hurt another person and had no positive purpose).
 
Lashon ha'ra, including rechilut, is forbidden to be said about shomer Shabbat Jews except for a positive purpose; motzi shem ra is forbidden to say about anyone--Jewish or not, shomer Shabbat or not, whether for a positive purpose or not.
 
Speaking Lashon HaRa
 
When You May Say Lashon HaRa
Lashon ha'ra, including rechilut, even if truthful, is not permitted except for a constructive or positive purpose. (Motzi shem ra is never permitted.) Its purpose cannot be to hurt a person.  It is permitted and recommended to tell the facts about someone:

1. To protect others from being hurt (being cheated, molested, etc.), or
2.  For a positive purpose that cannot be achieved through any other means.

 
Lashon HaRa To Protect Others from Being Hurt
You may say truthful lashon ha'ra (including rechilut, if it is necessary to divulge the name of the person who told you):

• To prevent a bad person from telling children bad things or to keep children from learning bad behavior from the bad person;
• To avoid being implicated in what the bad person is doing;

• To prevent other Jews' suffering a loss by using a worker who did bad work for you.

• If a businessman cheats you or lies to you, you should warn other Jews about him (but only if you suspect they want to do business with him).
• If you know something bad about someone who a third person wants to date or marry, in many cases you are required to tell what you know (but this can be very complicated and dangerous and a rabbi should be consulted about what to do in many cases)!

 
When You May Add Facts to Correct Possible Lashon HaRa
If the reasons behind an action are not clear and someone may get the wrong/negative impression of someone in question, then you should tell the facts and tell the entire story. 
Example
Someone (A) insults another person (B) in public. Entire story is that B beat up A previously. Knowing the full story changes how people might view A.
Note If it is only your opinion, state that instead of declaring it as fact.
 
Lashon HaRa To Allow Gain
Saying lashon ha'ra for a positive purpose includes gain for yourself or for someone else; you may talk about others in cases such as these:

• Psychotherapy  You may say truthful lashon ha'ra or rechilut to a psychotherapist since you don't know what is important. Outside of therapy and with non-therapists, you may say anything that will bring about a positive result (and only if there is no other way to achieve that result).

   

• Upset  If you are upset by what a person did to you and it will help you to calm down by telling what was done to you (that is, you will gain by feeling better).

 
Note If you want to ask someone for information that could be lashon ha'ra, you should say why you are asking so the other person will understand that it is for a positive purpose and is therefore not lashon ha'ra.
 
 
Lashon HaRa and Specific Cases
 
Children, Shomer Shabbat Person, Groups
Even truthful lashon ha'ra, including rechilut, may not be said about a Jewish child or a shomer Shabbat person or group of people unless for a positive purpose that cannot be achieved any other way.

• A parent should not rebuke or criticize a child if it will embarrass the child in front of others.
• A child (whether young or adult) may not correct a parent who is saying lashon ha'ra, unless the parent would want to be reminded that the parent is saying lashon ha'ra. Even then, it must be done respectfully. 
• You may make statements about groups of people in general, even if negative, as long as the purpose is to protect other people from them. But what you say must be true.   

 
Lashon HaRa: Public Knowledge
You may mention information that is public knowledge. But your intent should not be to spread the word, but rather just to pass along interesting information.
Example
Saying, “Did you hear that the president of the synagogue just got convicted of...”
 
Lashon HaRa: Mass Media
You may read in the paper, see on TV, or hear on the radio an account of someone's bad behavior (since you cannot know whether it will affect you or be important for you to know until you read or hear the information, it may be OK; ask a rabbi). You may not accept it as being the complete truth, but you should be wary.
 
Lashon HaRa: Shomer Shabbat Public Figure
You may not tell or listen to lashon ha'ra about a public figure who is a shomer Shabbat Jew unless there is a purpose.
You may give your opinion about a shomer Shabbat politician as long as you state it as your opinion and as long as giving your opinion may help other people.
 
Lashon HaRa: Shomer Shabbat Organization
You may not say any of the three types of speaking ill about an organization, school, synagogue, etc., whose members or employees are shomer Shabbat--except for a positive purpose.
Examples
You may not say any of the three types of lashon ha'ra about a Jewish school's cost, bad teachers, etc., unless it may be relevant to future students (and even if it is relevant, you may still not say motzi shem ra).
You may not say, “I don't like that shul because there is lots of talking,” unless you think the person will appreciate knowing since he or she will not want to go to a shul with lots of talking.
 
Lashon HaRa: Asked for Opinion
If you are asked for your opinion, you may give it if it is relevant (has a useful purpose) to the person asking. Otherwise, no comment.
 
If you are asked your opinion about a Torah lecture or lecturer, you may give your opinion only AS your opinion, not as criticism.
 
Lashon HaRa: Told in Confidence
If you have been told something in confidence, even if you think it is best for the person who told you if you pass it along, you may still not re-tell anyone else. You may say, “I cannot speak about that” if you are asked. Consult a rabbi.
 
Lashon HaRa: Getting Back at Someone
If someone hurts you, you may get back at the person at the time of the action against you.  But afterward, it would be revenge and is forbidden.
Example
Someone tells you, “You are good for nothing.” You may say, “You are worse than I am,” if it makes you feel better.
 
Lashon HaRa: Bet Din Summons
If someone with whom you have a problem refuses a hazmana (summons) from a bet din, you may publicize a letter from the bet din saying the person refused the hazmana so that the recipient might agree to go to the bet din due to public embarrassment.
 
Lashon HaRa: Bet Din for Abuse
All matters between Jews should, ideally, initially go to bet din but only if the bet din is capable of resolving the problem. In cases of suspected child or spousal (or other) abuse, you may report it to the police if there is no bet din that is capable of dealing with the problem immediately: You are not required to wait while a bet din gets around to your case. The key is to expedite the case.
Note Some cities have special batei din for such matters.
Note Beware of governmental agencies that may take away children from their homes, even without evidence.
 
Listening to and Believing Lashon HaRa
Listening to and believing any category of lashon ha'ra is also forbidden. If you do hear something bad about someone else, do not believe that it is definitely true--but you may believe that it might be true. When you hear lashon ha'ra:

• You can try to change the subject, since pointing out that lashon ha'ra is being said may not stop it from being said.
• If you see a shomer Shabbat Jew doing something that seems to be forbidden, you should judge him/her favorably and assume that there is a good interpretation to what is being done.

Example
Situation
You see someone who is not shomer mitzvot get in a car on Shabbat.
What To Do
Make the logical assumption that he/she is going to drive (and not for a halachically permissible purpose).
Situation
You see a shomer Shabbat person get in a car on Shabbat.
What To Do
Assume there is a good, halachic reason for it. However, you may not ignore reality or make implausible or unlikely excuses for bad behavior.

To eat more than one type of the Five Special Fruits:

• If you have a particular preference, you may eat the fruits in whichever order you prefer.
• If you have no particular preference, eat them in this order:
  1. Olive
  2. Date
  3. Grape
  4. Fig
  5. Pomegranate.