Is brewer’s yeast chametz? Do I have to sell it? I try to avoid selling chametz gamur.
Thank you so much! Pesach kasher v’samech!


Brewer’s yeast is a fermented barley, and therefore by definition chametz. All products that contain it must be removed for Pesach.

Note that the se’or the Torah prohibits is what is known as “sourdough” – yeast made from a bread base. This is of course strictly forbidden as chametz gamur.

Other forms of yeast are chemically made, and are not chametz.

Best wishes.

Share The Knowledge

Not what you're looking for? Browse other questions tagged Foods kosher for Passover Selling chametz or ask your own question.

Leave a Reply

Your email address will not be published. Required fields are marked *