1. Education
Send to a Friend via Email

Discuss in my forum

Baking Powder Shelf Life

Does Baking Powder Have a Shelf Life?

By

Did you know that baking powder has a shelf life? Unopened baking powder remains good indefinitely, but once you open a container of baking powder its potency starts to wane. The ingredient in the baking powder that would react with liquid in your recipe reacts instead with water vapor in moist kitchen air. You can slow this process by making certain your baking powder is tightly sealed when you aren't using it.

It's a good idea to test baking powder before using it in a recipe. Mix a bit of warm water into a small amount of baking powder. If you see bubbles of carbon dioxide form, then your baking powder is good. If no bubbles are formed or the reaction seems weak, it's time to replace your baking powder.

How Baking Powder Works | Baking Powder Versus Baking Soda

Related Video
About Baking Soda and Baking Powder
Baking Soda and Vinegar Erupting Volcano

©2014 About.com. All rights reserved.