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How to test baking soda and baking powder to see if they’re expired

When your pancakes come out too flat or your cake doesn't rise, your leavener might have lost its oomph. Here's how to do a ...
Yahoo

Does Baking Soda Go Bad? Yes, But You Can Still Use It—Here's How

Baking soda loses potency for baking after 6 months, but it's safe and useful for other purposes. Test baking soda with vinegar to check effectiveness; fizz means it's fresh. Use expired baking soda ...
Post-Bulletin

COL Take the baking-powder freshness test

Dear Heloise: I've got a problem! Sometimes my cookies, muffins, cakes and biscuits don't rise enough. I was told that there is a test for checking the freshness of baking powder. I tried this and was ...
AOL

Here's How Often You Should Really Be Replacing Your Baking Soda And Baking Powder

If you've gone to all the trouble of baking a homemade cake or batch of cookies, only to find they came out flat or dense, your leavening agent might be to blame. While baking powder and baking soda ...