Kosher Food

Does the Torah forbid cannibalism? The prohibition of cannibalism is implied by Deut.14:4-5. We can conclude from Gen.9:3 (see Gen.7:21) that cannibalism is also forbidden to Noahides. The Talmud (Chulin 92b) says that non-Jews accepted on themselves not to sell…

Is genetic engineering of plants forbidden? According to many Rabbinical authorities, gene transplantation performed on plants, and hybridization of seeds, do not violate the Biblical injunctions against “mixing” plants (kilayim). This view is attributed to the late Rabbi S.Z.Auerbach in…

What is the reason for not eating mixtures of meat and milk? The Torah repeats the prohibition of boiling a kid (a baby goat) in its mother’s milk three times. From the repetition we conclude that the prohibition applies to…

>What are the volumes of an egg (ke-betzah) and an olive (ke-zayis)? There are two views about the volume of an egg; it’s either 58 cc (cubic centimeters) or 100 cc. (According to the latter view, eggs in the time…

What is Kemach Yoshon? Why are so many more people particular about it today than ten years ago? The Torah (VaYikra 23:14) forbids eating grain products (made of wheat, barley, oats, spelt, or rye) that took root after the 16th…

What is the source of the prohibition against eating meat with fish? This prohibition is found in the Shulchan Aruch, Yoreh Deah 116:2. It is based on the Talmud’s statement in Pesachim 76b that fish that was roasted together with…

Why does fish have to be eaten separately from meat? The Talmud teaches that it is dangerous to eat meat and fish together. The commentaries are not certain whether the Talmud refers to a physical danger or a spiritual danger,…