Nullification: Difference between revisions

# When a mixture is permissible because of nullification one person may eat the entire mixture at different intervals and not all at once. It is preferable for one Jew not to eat the entire mixture but rather leave one piece and let another person eat it. It is even more meritorious to be strict to discard one piece or to give it to a non-Jew. <Ref>S”A YD 109:1, The Laws of Kashrus (Rabbi Binyamin Forst; pg 54-6) </ref>

# Certain prohibited foods require a higher ratio for nullification. For example, Trumah, Challah, and Bikkurim require a 1 (forbidden) to 100 (permitted) ratio and Orlah and Kelayim require a 1 to 200 ratio. <Ref>Rambam Machalot Assurot 15:13-4 </ref>

==Bitul BeShishim==

# If the mixture comprised of either 1)foods of dissimilar taste, 2)liquids, or 3)solids that were hot or cooked together, the nullification required is 1 to 60 called Bitul BeSheshim. <Ref> S”A and Rama 109:1-2, The Laws of Kashrus (Rabbi Binyamin Forst; pg 58-61) </ref>

# If solid foods which were cold and of similar taste are subsequently cooked together the nullification required is Bitul BeShishim. <Ref> S”A 109:2 </ref> According to Ashkenazim in cases of loss it’s permissible to use the nullification of Bitul BeRov if one knew at first that there was a mixture of non-Kosher and Kosher prior to the mixture being cooked. <Ref>Rama 109:2, however, Kaf HaChaim 109:40 writes that Sephardim don’t hold of this leniency.  </ref>

==Foods for which nullification doesn’t work==

# Tevel (produce of Israel wfrom which Trumot and Masserot have not been removed), wine poured to Avoda Zara, and produce of Isreal from the Shemitta (Sabbatical year) can’t be nullified unless it is mixed with a different type of food (different in name) in which case Bitul BeShishim is effective. <Ref> Rambam Machalot Assurot 15:6, 8 </ref>

# Chametz on [[Pesach]] and foods use to serve Avoda Zara can not be nullified in any amount. <Ref>S”A OC 447, S”A YD 140 </ref>