How to Test Baking Powder to See If it Is Good

Baking powder's leavening effect makes it a common ingredient in baked goods. It has an indefinite shelf life if it is unopened. Once you open a container, it remains in the best usable condition for six to 12 months. If you are uncertain how long your baking powder has been open, or if it is still effective, test it before you start your recipe so you can replace it if needed.

Things You'll Need

• 1/2 cup hot water
• 1 teaspoon measuring spoon

Instructions

1. Measure 1/2 cup hot water. Do not use water that is boiling.

2. Add 1 tsp. of baking powder to the water.

3. Watch the baking powder and water solution for fizz and rapid bubbles. The mixture should react very quickly. If it does not or if the baking powder sinks to the bottom of the cup, replace it.

References

• Joy of Baking: Baking Powder and Baking Soda
• Food Safety Education: How Can You Tell Baking Powder is Still Good?