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 ...
Baking some last-minute holiday cookies? Be sure your baking powder and baking soda are fresh and active so they can leaven the dough. Most containers are marked with "use by" dates. To test baking ...
At any given moment, I have at least one open box of baking soda and one open canister of baking powder in my pantry, and I never, ever know how old they are. Unlike cheese or apples, neither of these ...
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