Shelf Life Tips
- How long does an unopened package of baking powder last? The precise answer depends to a large extent on storage conditions -to maximize the shelf life of unopened baking powder store in a cool, dry area.
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Properly stored, an unopened package of baking powder will generally stay at best quality for about 18 months.
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Is unopened baking powder safe to use after the "expiration" date on the package? Yes, provided it is properly stored and the package is undamaged - commercially packaged baking powder 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 powder will remain at peak quality.
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How can you tell whether baking powder is still good to use? To test whether baking powder is still potent enough to be effective: add one teaspoon of baking powder to one-third cup of hot water - if mixture bubbles, the baking powder is still potent enough to use.
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Sources: For details about data sources used for food storage information, please click here
