Use At The Seder
Maror is one of the foods placed on the Passover Seder Plate and there is a rabbinical requirement to eat maror at the Seder. Hazeret (Hebrew: חזרת) is used for the requirement called korech, in which the maror is eaten together with matzo. There are various customs about the kinds of maror placed at each location.
During the Seder, each participant recites a specific blessing over the maror and eats it. It is first dipped into the charoset—a brown, pebbly mixture which symbolizes the mortar with which the Israelites bound bricks for the Egyptians. The excess charoset is then shaken off and the maror is eaten. The halakha (Jewish Law) prescribes the minimum amount of maror that should be eaten to fulfill the mitzvah (a kazayis or kayazit, literally meaning the volume of an olive) and the amount of time in which it should be consumed. To fulfill the obligation, the flavor of the maror must be unadulterated by cooking or preservatives, such as being soaked in vinegar.
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