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Section: Questions   Category: Miscellaneous
Miscellaneous - kosher for passover baking powder
Submitted by anonymous  Answered by Rav Peretz Moncharsh
Answer: Chometz, leavening, is caused by fermentation, a biological process of yeast metabolizing sugar and producing CO2 bubbles as a byproduct. Baking powder causes a chemical reaction that releases bubbles similarly causing the dough to rise, but does not create any chemical change in the the dough. Therefore, the effect of baking powder is not chometz and is permitted on Pesach. This would be similar to blowing bubbles into matzo dough with a straw. The topic is discussed in numerous recent sefarim includind Yabia Omer, Beit Avi and others, but I don't have specific sources in front of me at the moment.
posted:2008-04-19 02:51:11

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