DEAR HELOISE: I understand that baking powder has a shelf life, and that it can go bad. Can you tell me how long it remains good? — Joe and Kay, via e-mail It does have a shelf life, and here’s how to ...
Common cooking staples that have a short shelf life include olive oil, spices, pasta and more. Sometimes it's best to test baking powder, baking soda and yeast, despite expiration dates. Gourmet food ...
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