Baking Powder

Store in a cool, dry place in an airtight container. Moisture causes it to lose potency. Test effectiveness by mixing 1 tsp with hot water—it should bubble vigorously if still active.

Always check the expiration date—baking powder loses potency over time, typically after 6-12 months once opened

Mix dry ingredients thoroughly before adding wet ingredients to ensure even distribution

Don't overmix batters made with baking powder, as this can deflate the bubbles and result in dense baked goods

Bake soon after mixing wet and dry ingredients, especially with single-acting baking powder

Using expired baking powder that no longer produces adequate rise

Confusing baking powder with baking soda—they are not interchangeable without adjusting the recipe

Adding too much baking powder, which creates a bitter, metallic taste and can cause cakes to rise too quickly then collapse

Storing baking powder near moisture or heat sources, reducing its shelf life