Kil'ayim (prohibition)

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Halakhic texts relating to this article
Torah: Leviticus 19:19 and Deuteronomy 22:9-11
Babylonian Talmud: Tractate Kilayim
Mishneh Torah: Hilchot Kilayim
Shulchan Aruch: Yoreh De'ah, 295-304

Kil'ayim (or Klayim) (Hebrew: כלאים‎‎, lit. "Mixture," or "Confusion," or "Diverse kinds") is the Torah-based prohibition of crossbreeding seeds, crossbreeding animals, and mixing wool and linen.

There is a debate whether GMO food is kil'ayim or permissable.[1]

Permissive instances[edit]

Although Torah law forbids klayim (shatnez) – "intertying" wool and linen together, with the two exceptions being garments of kohanim and tzitit. Concerning tzitzit, chazal permit using wool and linen strings in tandem only when genuine tchelet is available, whereas kabbalist sources take it a step further by encouraging its practice.[2] However, klayim of animals and seeds are essentially excluded from any permissive instances.


  1. ^ Marlene-Aviva Grunpeter (October 8, 2013). "GMOs, A Global Debate: Israel a Center for Study, Kosher Concerns". Epoch Times. Retrieved March 1, 2017. 
  2. ^ "Tzitzit made of klayim?". Retrieved 2015-02-17.