Baking soda is a leavening agent used in baked goods like cakes, muffins, and cookies. Formally known as sodium bicarbonate, it's a white crystalline powder that is naturally alkaline, or basic . Baking soda becomes activated when it's combined with both an acidic ingredient and a liquid. Baking soda is a versatile ingredient whose uses extend far beyond cooking. This household staple shines when it comes to neutralizing odors and cleaning, as it helps remove tough stains, eliminate foul odors, and clean difficult areas like the oven, microwave, and tile grout