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 ...
Baking soda is a great household item that can be used to clean, deodorize, and even prevent certain types of pests. But can they deter mice? We asked the pros.
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