Pesach Faqs

Q. What is colloidal oatmeal? Can I use it on Pesach?

A. Colloidal oatmeal is finely ground oatmeal (plus other minor ingredients) for use in the relief of itchiness; it should be treated as chametz. However, when it is sold in cream-form (e.g., Aveeno) it does not pose a Pesach concern since we consider creams to be inedible. [The status of plain colloidal oatmeal does revolve around the nuances of a lesser-known principle called "yichdo l'yeshivah"; that topic is beyond the scope of this format, and for more information about it you can listen to the shiur on that topic on the cRc website].