How to tell If Baking Powder Expired

Is this still fresh?

Luckily, there’s an easy way to test if your baking powder is still active or needs to be thrown away:

You'll Need:

  • Baking powder 

  • Measuring cup

  • Hot water

  • ¼ tsp measure spoon
  1. Measure out ½ cup of hot water. 

  2. Add ¼ tsp of the baking powder or baking soda.

  3. Once you add the baking powder or baking soda, looking for immediate bubbling and fizzing. If you see bubbling, that’s a good sign. If you don’t see any bubbling or reaction then it’s time to throw it away.

QUICK TIP: The same test can be done for baking soda! Except: Add ¼ tsp of the white or cider vinegar to the hot water.

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