You found a can of baking powder tucked away in the back of the pantry and you aren’t sure how old it is or whether it’s still good to use. Here’s a quick test for freshness:
- Pour a teaspoonful into a bowl or small glass.
- Fill the bowl with hot water to cover the baking powder (about 1/4 cup should do it).
If it begins to bubble happily, it’s fine to use in your recipes.
Tip: For best results, do not dip a wet spoon into the can when measuring what you need. The moisture will activate the powder left behind in the can and it won’t be as good to use next time. If you see lumps in the powder, that’s usually a sign moisture has found its way in.
Did You Know:
- If sealed properly, baking powder can last two years.
- It’s a key part of “kitchen science” and an active ingredient that helps baked goods rise (called a leavening agent).
- If it doesn’t pass the freshness test, see this list of substitutes you can use (scroll to the bottom of article): Handy Substitute Recipes For Baking .