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When Shmura Matza Is Necessary
The only time you must use shmura matza is for the four commandments of motzi, matza, koreich, and afikoman.
Note You may use any other kosher for Passover matza, even for the rest of seder. There is no need for using shmura matza for the other days of Passover.
Volume/Solid
K'Zayit
K'zayit is variously defined as being the volume of 1/3, ½, or 1 whole egg; 0.6 - 1.9 fl. oz. (18-56 ml), depending on the application.
Note For d'oraita requirements such as seder, we are stringent (machmir) and use the larger amount of 1.9 fl. oz. (56 ml). For d'rabanan rules, we are more lenient and use only 1.3 fl. oz. (39 ml, or 1/6 cup).
  • K'zayit for Seder Matza and Afikoman:  1.9 fl. oz. (56 ml) of matza.
  • K'zayit for Bracha Achrona and Birkat HaMazon: 1.3 fl. oz. (39 ml, or 1/6 cup) of solid food.

Beitza, K'Beitza

Beitza, K'Beitza = 1.9 fl. oz. (56 ml); an egg size by definition.

Note For an etrog, which must be at least 1 egg volume, today we use a minimum of 2 egg volumes.
Women: Ya'aleh V'Yavo
If a girl age 12 or up or a woman forgets to say ya'aleh v'yavo for the Jewish festival or Rosh Chodesh amida, she must repeat the prayer.  She does not repeat ya'aleh v'yavo in any birkat ha'mazon except the two seder nights.
Maror: How To Eat It
Say the blessing “al achilat maror.”
Dip the maror into the charoset and shake off all but a little bit of the charoset.
Do not lean when eating the maror.
Note The blessing for maror was included in the borei pri ha'adama blessing, which was said on the karpas earlier in the seder.
Siyum
A siyum can be held anytime a book of Torah or Talmud or any other holy book (sefer kodesh) has been studied for a long time; three months or longer is a good guideline. Simply reading through a book does not qualify; you must study it and understand it.
Note Originally, the intent was for a volume (masechta) of Talmud or a division (seder) of the Mishna.
Introduction to Jewish Festival "Eating a Meal" Requirements
We are required to eat two meals on Jewish festivals, each preceded by kiddush, one in the evening and one in the morning. For both meals for each Jewish festival day (and all three meals on Shabbat), say ha'motzi over two complete loaves of bread, each of which is at least 1.3 fl. oz. in volume. 
Note Girls and women are not required to eat any meals (that is, including bread or matza) on Jewish festivals except the Passover seder. However, if a woman, or girl at least bat mitzva age, wants to eat bread, she should use two loaves, just as men do. This is halacha, not a custom. Also, girls and women may not fast on any festival day so even if they do not eat bread or matza, they must eat some food.

Source of Saying Jewish Festival Kiddush
Some kiddushes are commanded by the Torah (d'oraita); the others are from Chazal (d'rabanan), as follows:
Kiddush d'Oraita
  • First night of Jewish festivals
  • Night of seventh day of Passover
  • Night of Shmini Atzeret.
Kiddush d'Rabanan
  • First day of Jewish festival
  • Second night of Jewish festival
  • Second day of Jewish festival
  • Seventh day of Passover
  • Eighth night of Passover
  • Eighth day of Passover
  • Shmini Atzeret day
  • Night and day of Simchat Torah.
Source of Jewish Festival Kiddush Location
Saying Jewish festival kiddush at the place where you will eat your meal is a rabbinical (d'rabanan) enactment.
Jewish Festival Kiddush-Meal Quantities: Evening
  • For evening kiddush for a first-night (d'oraita) Jewish festival, a minimum of 4 fl. oz. (119 ml) of wine must be blessed on and at least half must be drunk.
  • For evening kiddush for a second-night (d'rabanan) Jewish festival, a minimum of 3.3 fl. oz. (99 ml) of wine must be blessed on and at least 2.0 fl. oz. must be drunk.
  • For the evening meal, as on the first two Shabbat meals and for all required Jewish festival meals, a minimum of 1.9 fl. oz. (56 ml) of bread must be eaten within four minutes.
Eating Requirements for Jewish Festival Morning Kiddush
There are two separate eating requirements during the daytime. They may be combined (say/hear kiddush and start the main meal right away) but are often done separately (say/hear kiddush and then eat some light foods and beverages; the main meal is eaten later in the day).
Note Since eating and drinking requirements on all morning kiddushes (both Shabbat and Jewish festivals) are d'rabanan, the required beverage amount for morning kiddush is only 3.3 fl. oz. (99 ml) instead of the d'oraita 4 fl. oz. (119 ml) (which is required for kiddushes for Shabbat evening and all first-night Jewish festivals).
  • Morning kiddush requires a halachically legal “meal” with these elements:
    • Blessing on a minimum of 3.3 fl. oz. (99 ml) of wine (or other beverage),
    • Someone's drinking at least half the beverage, followed by
    • Eating at least 1.3 fl. oz. (39 ml, or 1/6 cup) of some type of mezonot within four minutes. 
      Note If you drink at least 3.3 fl. oz. (99 ml) of wine within 30 seconds, you do not need to eat mezonot.
      Note You do not need to drink the wine or other kiddush beverage to fulfill “establishing a meal.” You may hear kiddush and then simply eat the required amount of bread or mezonot. This applies to Shabbat or Jewish festivals, evening or morning.
       
  The kiddush “meal” does not have to satiate.
 
  • The real meal (kovei'a se'uda) requires eating at least 1.9 fl. oz. (56 ml) of bread (or matza during Passover!) within four minutes. It must include enough food to satiate. 
    Note You can simultaneously fulfill the requirement to “establish a meal” and to “eat a meal” by eating one (the same) piece of bread.


Jewish Man or Woman Making Kiddush
Any adult Jew, male or female, may say kiddush for him/herself and, as long as he/she still needs to say kiddush for him/herself, may include any other Jews of any age or gender.
Any Jewish male, 13 years old or older, may say kiddush for anyone else, either gender and any age, even if he has already fulfilled his personal requirement of saying kiddush.
Any Jewish female, 12 years old or older, may say kiddush for any other females but not for men, except that on the 2 Passover seder nights, a Jewish female who is at least 12 years old may even say kiddush for men, if the men are not able to say it for themselves. (Women may also say kiddush for men on Shabbat evening).
Reason Any person who is obligated to fulfill the mitzva of kiddush may say it for another person.  It is questionable whether women are obligated to say (or have said for them) Jewish festival morning kiddush.
 
Women: Time-Based Positive Commandments/Mitzvot: Obligations
In addition to prayer obligations (see Women: Minimal Prayer), women and girls 12 years old and up are required to keep these time-dependent positive commandments, among others:
  • Candle-lighting for Chanuka (see Chanuka: Candles: Who Should Light )
  • Candle-lighting for Shabbat, Jewish festivals, Rosh Hashana, and Yom Kippur.
  • Havdala (say or hear) after Shabbat, Jewish festivals, Rosh Hashana, and Yom Kippur.
  • Kiddush (say or hear) on the first night (or first two nights outside Eretz Yisrael) of every Jewish festival, and also the next morning.
  • Passover (all commandments, including eating matza at the Passover seder).
    Note Because she must eat matza, she must therefore say birkat ha'mazon afterward (so if a woman omits ya'ale v'yavo in birkat ha'mazon at the seder, she must repeat birkat ha'mazon!).
  • Megila on Purim.
  • Shabbat (For why women must keep time-dependent, positive commandments on Shabbat, see Introduction to Shabbat )
  • Shofar on Rosh Hashana.
    Note Jewish women universally accepted upon themselves to hear shofar on Rosh Hashana, but they only need to hear 30 blasts.
  • Hearing the reading of Parashat Zachor.
Hidur Mitzva/Mehadrin
Almost all mitzvot may be enhanced by:
  • Making them beautiful (hidur mitzva), or
  • Observing non-required stringencies (mehadrin).
Hidur Mitzva
Examples
  • Women baking challa for Shabbat and Jewish festivals (and separating challa as a remembrance of the challa that was given to the priests/cohanim in the Temple).
  • Wearing especially nice clothes and eating special foods on Shabbat and Jewish festivals.
  • Using beautiful fragrances, tastes, textures, colors, and artistry in serving God.
Beautiful
Examples
  • Shabbat/Jewish festival table (set with beautiful challa cover, silver, kiddush cups).
  • Havdala set and pleasant-smelling spices for havdala.
  • Sukka and putting your finest things in it.
  • Etrog/etrog case.
  • Shofar.
  • Seder plate, matza holder, and matza cover.
  • Illuminated hagadas (hagadot) and megilas (megilot).
  • Chanuka candle-holder (menora, chanukiya).
  • Torah scroll written with a fine pen and beautiful script and wrapped in beautiful silks.
  • Mezuza covers.
  • Ketuba.
  • Wimple (to wrap baby in prior to brit mila; then donated to hold the two parts of the Torah together).
  • Elijah's Chair/Kisei Eliyahu.
  • Synagogues.
  • Chuppa.
Mehadrin
Examples
  • Chalav Yisrael--When consuming milk and milk products, eating or drinking only those items whose production was supervised by religious Jews;
  • Pat Yisrael—When eating bread, only eating bread baked by Jews (not necessarily by religious Jews);
  • Glatt meat—When eating meat, eating only meat that had no lesions on the animal's lungs;
  • Lighting more than one Chanuka candle each night (beginning on the 2nd night) and having more than one person in each house light their own candles.
Jewish Festivals: Earliest Mincha
The earliest permissible time to say mincha before a Jewish festival is one-half hour after halachic midday, as with all mincha prayers including before Shabbat.
Note You may begin the second day of any Jewish festival as early as plag ha'mincha. You should ideally say mincha before plag and then say ma'ariv after plag; but if you are praying with a minyan, you may say mincha anytime after plag and then say ma'ariv immediately afterward, just as on Shabbat.
Note However, there is nothing gained by saying mincha early before a Jewish festival:
  • We don't want to start Rosh Hashana (Yom HaDin) early and no one wants to start Yom Kippur early.
  • You may not start either seder until after dark on Passover.
  • You could eat in a sukka before dark on either of the first two days of Sukkot, but you would not fulfill the requirement of eating in a sukka since it was not dark.  
  • Likewise, the first day of Shavuot does not begin until after dark.
  • Since you may not say the blessing on eating in a sukka on Shmini Atzeret (which you would have to do if you eat before dark), there is nothing gained by saying mincha and ma'ariv early on that day, either.
So, as a practical matter, the only days on which saying mincha and ma'ariv early would allow beginning the holiday early are the second day of Shavuot, the second day of Rosh Hashana, and the last days of Passover.

Introduction to Passover
Introduction to Passover: Passover Names

Passover celebrates the seven or eight days starting with the 14th of Nisan, when God took the Israelites out of Egypt about 3300 years ago. The holiday has several names:
  • Chag HaPesach--Holiday of "Skipping Over" (reflecting that God passed over the Jewish homes and did not kill the first-born sons, unlike those of the Egyptians);
  • Chag HaAviv--Festival of Spring (the Jewish calendar is based on the moon and is adjusted to the solar cycle so that Passover always comes in the spring);
  • Chag HaMatzot--Holiday of Unleavened Bread; and
  • Zman Cheiruteinu--Time of our Freedom.

Introduction to Passover: Passover Observance

Passover observance includes removal of chametz, the Passover sacrifice and its reminders, and the Passover seder:

Chametz

Chametz Gamur and Ta'arovet Chametz

The Five Grains, once fermented into items such as bread or beer, are genuine chametz (chametz gamur) and are forbidden on Passover by the Torah (d'oraita).  Ta'arovet chametz (a mixture containing chametz) includes foods such as breakfast cereal and are also forbidden on Passover.

Rules for Chametz

  • You may not own or see (your own) chametz during the entire period of Passover.
  • You may not benefit in any way from chametz during Passover, whether it belongs to a Jew or to a non-Jew. If the chametz was owned by a Jew during Passover, you may not benefit from that chametz even after the holiday has ended.

What To Do with Chametz

Ideally, any chametz should be used up before Passover, given to a non-Jew, or destroyed. But if the chametz has significant value, the custom is to sell that chametz to a non-Jew. You do not need to sell kitniyot, but you must sell any genuine chametz and any mixtures of chametz (ta'arovet chametz).

Passover and Nullification by 1/60th

During the year, 1/60th or less of an undesired substance is considered to be inconsequential and nullified by the other substances. But on Passover, any amount of leaven mixed in food is forbidden.
However, the chametz in food acquired before Passover can be nullified before Passover, but ONLY if:
  • It is 1/60th or less of the total volume of food,
  • The food is liquid mixed in other liquid, or solid in other solid, AND 
  • The chametz/non-chametz elements cannot be easily separated from each other.

Four Steps To Eliminating Chametz

There are four means of eliminating chametz:
  • Bedika: Searching
    You try to find any chametz.
  • Bitul:  Verbal and Intentional Nullification
    Since you may have overlooked some chametz during bedika, declare that any chametz in your possession is not important to you and has no value.
  • Bi'ur: Burning
    By burning and therefore destroying the chametz, we fulfill the Torah
    commandment of “tashbitu” (making it cease to exist).
  • Mechira: Selling
    By changing the ownership, we no longer own chametz on Passover and we create the opportunity to re-acquire the chametz after Passover has ended if the non-Jewish buyer agrees.

Chametz Symbolism

Fermented grains represent (among other things) arrogance and pride:  the puffing up of fermented grains is symbolic of people puffing up themselves. In Judaism, one way to get rid of a bad personal trait is to utterly destroy it and so we symbolically remove and destroy any fermented grain foods from our houses and ownership.

Destroying chametz is not a violation of “do not destroy” (bal tashchit) since it is done to perform a commandment.

What Are Kitniyot

Kitniyot are foods that look similar to the five chametz grains or that could be ground into a flour that could look like flour from those grains, such as beans, peanuts, rice, corn, mustard seeds, and other food plants that are grown near the Five Grains.

What To Do with Kitniyot

Kitniyot may not be used on Passover but do not need to be sold or removed from one's ownership. Kitniyot should be stored away from kosher for Passover food.

Passover Sacrifice

In Temple times, the Passover sacrifice was to be eaten with one's family and possibly with neighbors, depending on the number of people present. The only two instances of kareit (being cut off spiritually) for not doing a positive commandment are for not doing a brit mila and not bringing a Passover offering (in Temple times).

Seder

The Passover seder (order) was prescribed in ancient times as a means for helping all Jews, of all ages and both genders, to re-experience the transition from having been slaves to becoming free and from having ascended from idol worshippers to being monotheistic.

Introduction to After-Blessings (Bracha Achrona): Minimum Measurements
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.
Note With hot foods, especially liquids, you are unlikely to be able to swallow a minimum amount in the required time in order to qualify for the after-blessing (bracha achrona).

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.
Introduction to Fast Days
Introduction to Fast Days
The purpose of Jewish fast days is to make us reflect on our behavior and improve it by:
  • Eliminating negative actions and thoughts, and
  • Taking more care in our observance of the commandments.
God told the Jewish people on many occasions that He did not want their pointless sacrifices or fast days but rather wanted the Jews to improve their behavior. If people fast but still have reprehensible behavior, the people have missed the point and purpose of bringing sacrifices and having fast days.
All fast days may be circumvented for health reasons. Consult a rabbi.
Fast days come in several varieties:
  • Major fast days: Yom Kippur and the Ninth of Av (Tish'a B'Av). 
  • Minor fast days: There are four minor fast days; see below.
  • Fast for First-Born
  • Individual Fasts

The Major Fasts
Yom Kippur and the Ninth of Av begin before sunset and are both slightly longer than 24 hours. Yom Kippur is a festive day while, on the Ninth of Av, Jews mourn for the destruction of both Jerusalem Temples (the first was destroyed by Babylonians; the second, by the Romans). On both fasts, it is forbidden to:
  • Eat or drink.
  • Wear leather shoes (but you may wear any other clothing made of leather).
  • Bathe (or even to wash anything more than fingers; you may not use a deodorant--not even a spray type--since it is similar to washing).
  • Have marital relations.
  • Use cosmetics or body scents.

The Minor Fasts
The four minor fasts begin 72 minutes before local sunrise. They technically end at dark but functionally end after ma'ariv (and for the Fast of Esther, after hearing the megila). Unlike most times in the Jewish calendar, this 72 minutes is normal time and NOT based on the current length of the day (sha'a zmanit):
  • Fast of Esther (Ta'anit Esther): Day preceding Purim (or sometimes earlier).
  • Fast of Gedalia (Tzom Gedalia): Usually the day after Rosh Hashana.
  • Tenth of Tevet (Asara b' Tevet):
  • Seventeenth of Tamuz (Shiv'asar b'Tamuz): Beginning of the Three Weeks of semi-mourning beforeTish'a b'Av.
On all fast days, eating and drinking are forbidden. The Tenth of Tevet and the Seventeenth of Tamuz additionally have the same restrictions as the Nine Days. So you may wash or bathe on the Fast of Esther and on Tzom Gedalia but not on the Tenth of Tevet and the Seventeenth of Tamuz. (See Nine Days: Restrictions).
Note On a fast day that has been delayed for Shabbat, there may be leniencies for:
  • The mohel, sandak, and father of a baby getting a brit mila to eat after mincha.
  • Pregnant or nursing women (this leniency applies to eating throughout the day).
Fast for First Born
Fast for first-born males 13 years old and older, on the day before Passover. This includes first-born cohanim and Levites (levi'im). The fast begins 72 normal minutes before sunrise and ends with kiddush at the seder. However, the widespread custom is to attend a siyum on the day before the first seder so that the first-born men do not need to fast on that day.
 
Personal Fasts
Fast by a groom and bride on their wedding day is an example of personal fasts. This fast begins 72 normal minutes before sunrise and ends with drinking wine under the chuppa.
Introduction to Holidays/Jewish Festivals/Chagim/Yom Tov
Jewish Festivals are listed in the Torah and are of two types: 
  1. Three pilgrimage festivals (shalosh regalim):
  • Passover,
  • Shavuot, and
  • Sukkot (including Shimini Atzeret).
These festivals were celebrated in ancient times by "appearing before God"--by bringing offerings to the Tabernacle or Temple.
  1. High Holidays: 
  • The Jewish New Year (Rosh Hashana—“Yom Teru'a” in the Torah), and the
  • Day of Atonement (Yom Kippur).
 
Duration
Jewish holidays that were originally one day are now observed as follows:
  • Rosh Hashana--2 days.
  • Yom Kippur--1 day.
  • Shavuot--1 day in Eretz Yisrael or 2 days elsewhere.
  • Passover has festival days at the beginning and end of the holiday and intermediary days of lesser holiness, which are called chol ha'moed. In Eretz Yisrael, Passover lasts for 7 days in total and the first and last days are festival days. Outside of Eretz Yisrael, Passover lasts 8 days and has two festival days at the beginning and two at the end.
  • Sukkot has festival days at the beginning and at the end and intermediary days of lesser holiness, which are called chol ha'moed. In Eretz Yisrael, Sukkot lasts for 8 days and the first and last days are festival days (the last day is Shimini Atzeret). Outside of Eretz Yisrael, Sukkot lasts for 9 days and the first two days and last days are festival days (the 8th day is Shimini Atzeret and the 9th day is Simchat Torah).

Character
Each holiday contributes its own character to Jewish life (Passover--the theme of freedom; Yom Kippur brings atonement, etc.). 

Celebrating
How to celebrate these holidays is detailed in our Oral Law and halacha books. Jewish festivals as practiced today are similar in holiness to Shabbat. As with Shabbat, the Jewish festival has candle lighting, kiddush at two meals, and havdala.   We eat our best food and wear our best clothing on Jewish festivals (we eat our next-best food and wear our next-best clothing on Shabbat!).
The main idea behind eating meals on Jewish festivals is joy (simcha), so you should drink wine and eat meat (only if you enjoy wine and meat).  There is no third meal on Jewish festivals since people used to eat two meals each day (adding a third meal on Shabbat was for enjoyment/oneg).
 
Melachot
Any activities or actions permitted on Shabbat are also permitted on the Jewish festivals. Actions that are forbidden on Shabbat are generally also forbidden on Jewish festivals, but there are some leniencies (only if the actions are needed for that festival day).
Examples
  • Lighting from an existing flame,
  • Cooking and baking for the Jewish festival day, and
  • Carrying outside the eruv (hotza'a--transferring objects between domains).
 
Grama
Grama (indirectly causing an action) is permitted on Jewish festivals (but not on Shabbat). For example, you may advance or delay a timer that will make a light go on or off in the future (the timer must already be plugged in and operating from before sunset of the festival day).
Note For an action to be considered indirect based on time, there must be at least 2.5 seconds after the first action is done before the resulting action begins to happen.

Psik Reisha Dla Neicha Lei
Psik reisha dla neicha lei is forbidden on Jewish festivals, just as it is on Shabbat.

D'oraita Restrictions
D'oraita restrictions apply world-wide to:
  • First and seventh days of Passover,
  • First and eighth days of Sukkot,
  • First day of Shavuot,
  • Yom Kippur,
  • First day of Rosh Hashana.
Note The same restrictions apply to all other Jewish festival days but are rabbinical.
 
Women
In general, women are not required to perform the positive, time-dependent commandments. Women and girls are not required to eat any Jewish festival meals except the Passover seder meal (but they are not allowed to fast on those days).