Baking powder is a leavening agent used in baking that consists of a mixture of alkaline and acidic components. It is typically a fine powder with a neutral taste. Baking powder is made by combining an alkaline substance, such as baking soda (sodium bicarbonate), with one or more acidic compounds, such as cream of tartar. This combination creates a reaction when exposed to moisture and heat, producing carbon dioxide gas that causes dough or batter to rise. Unlike baking soda, which requires an acidic ingredient to activate its leavening properties, baking powder is a self-contained leavening agent. It is commonly used in recipes where there are no acidic ingredients present or when a more predictable rise is desired.

“baking powder”的英语定义和含义

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