Do I Really Need to Buy a New Box of Baking Soda Every Month?

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Q: Whenever I use baking soda, my eyes always fall guiltily on the packaging, which tells me that I should buy a new box every month. As much as I bake, there's no way I could go through an entire box of baking soda in a month, so it seems wasteful to follow their instructions unless there's a real reason. 

Should I be buying new baking soda, and if so, does that apply to baking powder as well?

Sent by Emilie

Editor: Emilie, there is no need to replace your baking soda or baking powder every month; that recommendation applies to baking soda you are using to absorb odors. The shelf life for baking soda is about three years, but if you are worried that an open box is no longer potent, you can do a quick test to check it:

Readers, how often do you replace your baking soda and baking powder?

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Related: Can Expired Baking Soda Be Used for Cleaning?

(Image: Elizabeth Passarella)

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