Unfortunately, if you use inactive baking powder—that is, baking powder that's gone bad—in a recipe, you're liable to end up ...

Don’t forget to increase the size of the container as well! Show students the two labeled cups, one containing 1/2 teaspoon of baking soda, and the other with 1/2 teaspoon of baking powder. Pour about ...

Proper storage is key to prolonging your baking powder’s shelf life. Keep it sealed in an airtight container in a dry place at room temperature. Don’t be tempted to keep it in the fridge.