Search results for: ""K'zayit""

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.
Birkat HaMazon D'Rabanan: Rabbinic Source
Although the mitzva d'oraita is to thank God only when you are satiated from the meal, chazal decreed that we say birkat ha'mazon even when eating only the volume of a k'zayit and even if not satiated. So you must still say birkat ha'mazon after eating at least 1.3 fl. oz. (39 ml, or 1/6 cup) of bread within four minutes--even if you are not full.  This is known as birkat ha'mazon d'rabanan.
Borei Pri Ha'Eitz: Five Special Fruits: Order and Preference
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.
Note Order of Five Special Fruits
The order for eating the Five Special Fruits comes from Deuteronomy/Devarim 8:8 and follows the fruit's proximity to the two times the word “eretz” is used:
“Eretz chita u's'ora v'gefen u't'eina v'rimon, eretz zayit shemen u'dvash.”
A land of wheat and barley and grapevine and fig and pomegranate, a land of olive oil and honey.