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Does baking powder get too old to use? | Almanac.com

Does baking powder get too old to use?

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Does baking powder get too old to use?
Answer
It can, but to test it, do this: Add 1 teaspoon of baking powder to 1 cup of hot water. If the mixture bubbles a lot, the baking powder is good. If it doesn’t bubble, throw the baking powder out.