So, here's the thing: baking powder is a leavening agent that helps our baked goods rise. It's a mixture of baking soda and an acid (usually cream of tartar) that's designed to release gas and make our treats light and fluffy.
But, over time, baking powder can lose its potency. This is because the moisture in the air can cause the acid to react with the baking soda, rendering it useless.
This is why it's essential to store baking powder in an airtight container to keep it fresh. You can even store it in the fridge to prolong its shelf life!
