Baking soda

Description

Baking soda is a fine, white, crystalline powder with a mildly alkaline, slightly salty taste. In the kitchen, it is primarily a leavening agent: when it comes into contact with an acid (buttermilk, yogurt, vinegar), it releases carbon dioxide, which gives baked goods lightness. As a mineral substance, it does not provide calories or vitamins, contains sodium, and is not a source of nutrients; in small amounts, it can relieve heartburn as an antacid, but excess sodium and alkalinity require caution. Soda is used in cakes, pastries, cookies, and for marinating meat as well as softening vegetables, and also as a universal cleaning and deodorizing agent. Store it in a tightly sealed container in a dry, cool place, away from strong odors and moisture; for best leavening activity, use it within about 6–12 months of opening.