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Yeast is a one-celled organism that provides the leavening (rise) to breads. It is usually sold dry, in small granules, and must be activated with water and heat. Yeast is also used to ferment wine and beer: it consumes sugar, and produces alcohol as a byproduct.

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Does flour have yeast?

This feels like it should be an easy question to find an answer to, but all I'm finding are unreliable sources saying both yes and no. I'm referring specifically to any kind of store-bought flour used …
DukeSilver's user avatar