Video:About Baking Soda and Baking Powderwith Anne Marie Helmenstine
Both baking soda and baking powder are leavening agents, which means they are added to baked goods before cooking to cause them to 'rise.' Learn about the differences in baking soda and baking powder.See Transcript
Transcript:About Baking Soda and Baking PowderBoth baking soda and baking powder are leavening agents, which means they are added to baked goods before cooking to produce carbon dioxide and cause them to 'rise'. Baking powder contains baking soda, but the two substances are used under different conditions.
About Baking SodaBaking soda is pure sodium bicarbonate. When baking soda is combined with moisture and an acidic ingredient (like, yogurt, chocolate, buttermilk, or honey), the resulting chemical reaction produces bubbles of carbon dioxide that expand under oven temperatures, causing baked goods to rise. The reaction begins immediately upon mixing the ingredients, so you need to bake recipes which call for baking soda immediately, or else they will fall flat!
About Baking PowderBaking powder contains sodium bicarbonate, but it includes the acidifying agent already (which is cream of tartar), and also a drying agent (usually starch). Baking powder is available as single-acting baking powder and as double-acting baking powder. Single-acting powders are activated by moisture, so you must bake recipes which include this product immediately after mixing. Double-acting powders react in two phases while baking.
When to use Baking Powder and Baking Soda?Some recipes call for baking soda, while others call for baking powder. Which ingredient is used depends on the other ingredients in the recipe. The ultimate goal is to produce a tasty product with a pleasing texture.
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