Baking Soda 16 Oz It is inexpensive, environmentally friendly, fragrance-free, and safe for nearly all surfaces, making it ideal for household use, reduce acidity on food while cooking, relief heartburn, sour stomach, acid indigestion and upset stomach. As a mild abrasive agent, baking soda can also be used in place of toothpaste. Sprinkled around the exterior entrances to and foundations of homes, it may prohibit ants and other insects from crawling in. Dissolved into a lukewarm bath, it will soothe the discomfort of sunburn and the itch of poison ivy. Made into a paste with cool water and applied directly to the skin, it will ease the pain of bee stings.