What happens if you eat expired baking powder?

While eating expired baking powder is generally not considered dangerous, it may not provide the same leavening power as fresh baking powder, resulting in baked goods that do not rise properly. The effectiveness of baking powder diminishes over time, as the chemical components gradually break down and lose their potency.

Baking powder is composed of a base (baking soda), an acid (cream of tartar), and a drying agent (cornstarch). The acid and base react when mixed with liquid to produce carbon dioxide, which causes baked goods to rise. Over time, the acid and base in baking powder can react with each other, reducing their effectiveness. Additionally, the drying agent can absorb moisture from the air, causing the baking powder to become less effective.

Consuming expired baking powder may result in baked goods that are flat, dense, or have an off flavor. To ensure optimal results, it is best to use baking powder before the expiration date indicated on the packaging.