-tsp baking soda

Baking soda, chemically known as sodium bicarbonate (NaHCO₃), is a naturally occurring mineral compound that serves as a chemical leavening agent in baking. It is a white crystalline powder with a slightly alkaline taste and odor. When combined with an acidic ingredient (such as buttermilk, yogurt, vinegar, or cocoa) and moisture, baking soda undergoes a chemical reaction that produces carbon dioxide gas, creating lift and volume in baked goods. Unlike baking powder, which contains its own acid, baking soda requires an acidic component in the recipe to activate its leavening properties.

Baking soda is highly soluble in water and begins its reaction immediately upon contact with acidic liquids, so batters containing it must be baked promptly to capture the gas bubbles. This makes it ideal for quick breads, pancakes, cookies, and cakes that benefit from rapid leavening action.

Baking soda is essential in baking as a leavening agent, primarily used in recipes containing acidic ingredients. It is commonly found in quick breads (muffins, biscuits), pancakes, waffles, cookies, and cakes, particularly those using acidic dairy products like buttermilk or sour cream. Beyond baking, baking soda is used to enhance the tenderness of vegetables, reduce bitterness in certain greens, adjust pH in cooking water for beans, and soften the exterior of pretzels and bagels before baking (a technique called "potash water" treatment). It also acts as a gentle abrasive in cleaning and as a deodorizer.