How Long Does Unopened Baking Soda Last? - StillTasty

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How Long Does Unopened Baking Soda Last?

BAKING SODA — UNOPENED PACKAGE

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2 years

How long does an unopened package of baking soda last? The precise answer depends to a large extent on storage conditions -to maximize the shelf life of unopened baking soda store in a cool, dry area.
Properly stored, an unopened package of baking soda will generally stay at best quality for about 2 years.
Is unopened baking soda safe to use after the "expiration" date on the package? Yes, provided it is properly stored and the package is undamaged - commercially packaged baking soda will typically carry a " Best By," "Best if Used By," "Best Before", or "Best When Used By" date but this is not a safety date, it is the manufacturer's estimate of how long the baking soda will remain at peak quality.
How can you tell whether baking soda is still good to use? To test whether baking soda is still potent enough to be effective: add one teaspoon of baking soda to 3 tablespoons of vinegar - if mixture bubbles, the baking soda is still potent enough to use.

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Sources: For details about data sources used for food storage information, please click here

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