teaspoons baking soda

Baking soda, chemically known as sodium bicarbonate (NaHCO₃), is an alkaline salt derived from natural mineral deposits or synthesized through the Solvay process. It appears as a fine white crystalline powder with a slightly salty taste. When heated or combined with acidic ingredients (buttermilk, yogurt, citrus juice, vinegar), baking soda undergoes a chemical decomposition that releases carbon dioxide gas, creating lift and rise in batters and doughs. Unlike baking powder, which contains its own acid, baking soda requires an acid component in the recipe to function as a leavening agent.

Baking soda serves as a primary leavening agent in quick breads, cakes, cookies, and pancakes, particularly in recipes containing acidic ingredients. It is essential in American and British baking traditions, used in items such as Irish soda bread, soft cookies, and chocolate cakes. Beyond leavening, baking soda neutralizes acids, tenderizes baked goods, promotes browning through the Maillard reaction, and is employed in savory cooking to soften legumes and reduce cooking time. Small amounts are also used to neutralize acidic sauces or as a rising agent in batters for fried foods.