teasp baking soda

Baking soda, chemically known as sodium bicarbonate (NaHCO₃), is a white, crystalline alkaline compound derived from natural mineral deposits or synthesized through the Solvay process. It occurs naturally in mineral form as trona and nahcolite. When heated or combined with acidic ingredients such as buttermilk, yogurt, lemon juice, or vinegar, baking soda undergoes a chemical reaction that releases carbon dioxide gas, creating lift and texture in baked goods. The compound has a slightly salty, alkaline taste and is odorless in its pure form.

Baking soda differs from baking powder in that it requires an acidic ingredient to activate, whereas baking powder contains its own acid (cream of tartar) and activates upon contact with liquid. The ingredient was widely adopted in commercial baking during the 19th century as a more reliable leavening agent than yeast or potassium carbonate.

Baking soda functions primarily as a leavening agent in baked goods, producing carbon dioxide bubbles that create a light, airy crumb in cakes, cookies, quick breads, and muffins. It is essential in recipes containing acidic components such as chocolate, citrus, buttermilk, or sour cream, where it neutralizes the acid while generating rise. Beyond baking, baking soda is used as a tenderizing agent in pancake and waffle batters, to reduce bitterness in vegetable cooking liquids, and as a component in self-rising flour formulations. It also appears in savory applications such as Asian noodle doughs, where it creates a springy texture. Minor culinary uses include surface-cooking applications where it increases browning and alkalinity.