To check if baking powder is still active, pour 1/4 cup boiling water over 1/2 tsp baking powder. Foam = still good!
Baking Powder VS. Baking Soda When Baking Cookies
Baking Soda vs. Baking Powder: The Difference
Baked Baking Soda (Sodium Carbonate) Recipe
How To Tell If Baking Powder & Baking Soda Are Fresh - Sweets
How To Tell If Baking Powder & Baking Soda Are Fresh - Sweets
How to Test Baking Powder is Still Good #shorts
How To Test Baking Powder is Still Good
Does Baking Soda Go Bad? (Plus How to Test It)
Is Your Baking Powder Fresh?
What Is Baking Powder?
Baking basics: How to check your baking powder is still active
How to Fix Baking Soda or Baking Powder Recipe Mishaps
How To Tell If Baking Powder & Baking Soda Are Fresh - Sweets
How to tell if baking powder is still good - David Lebovitz