treyf
Treif, treyf, or tref is a term used in Jewish dietary law to denote foods that are not kosher or not fit for consumption according to kashrut. The word comes from Yiddish treyf, itself derived from the Hebrew tref (terefah), meaning torn or unfit. In traditional usage, trefa originally referred to a carcass deemed non-kosher due to injury or illicit slaughtering, but in modern contexts it denotes anything that does not comply with kashrut.
Most commonly, treyf refers to foods from non-kosher animals (such as pork or shellfish), animals forbidden by
In practice, observant Jews follow kashrut to avoid treyf, often seeking kosher certification on products. The