Have you ever looked at a half-used tin of baking powder or cocoa and wondered, “Is this still okay to use?” You’re not the only one. Most of us dislike throwing away perfectly good ingredients. The ...
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 ...