What’s baking soda doing in your toothpaste, deodorant, antacid and refrigerator?
Also known as sodium bicarbonate or bicarbonate of soda, baking soda is often employed as a leavening agent, since it’s involved in the chemical reaction that causes dough to rise. But this household staple has hundreds of uses. Baking soda is somewhat alkaline—that is, it has a pH above 7 and thus helps neutralize acids, including acidic scent molecules. That’s why baking soda comes in handy in the following (and surprising) ways:
- An open box of baking soda can help deodorize a refrigerator or room. You can make an air freshener by mixing baking soda and water in a spray bottle.
- It has various uses in cooking, not just baking. Adding a pinch to the soaking water of beans speeds the cooking process and helps reduce compounds that cause flatulence. A pinch added to tomato sauce while cooking, or coffee while brewing, reduces acidity. It’s also an effective meat tenderizer, since it breaks down proteins.
- Because it’s a mild abrasive and deodorizer, baking soda is a gentle, inexpensive cleanser for sinks, tiles, toilet bowls and ovens. And it’s a good ingredient in toothpastes, underarm deodorants and denture soaks. Environmentally safe, baking soda can be used in place of potentially toxic products.
- When added to laundry water—about half a cup—it can improve the effectiveness of detergent. Added to the rinse cycle, it can neutralize odors.
- Added to bath water, baking soda soothes dry skin, sunburn and itching due to poison ivy or mosquito bites. Or, it can be applied as a paste (one part water to three parts baking soda).
- Added to swimming pools, it can balance the pH and help keep water clear.
- Sodium bicarbonate is an effective antacid, but is not recommended because it’s so high in sodium: 1,250 milligrams per teaspoon, and 1,100 milligrams in two tablets of Alka-Seltzer. And it may cause acid rebound effect, in which case you end up with worse heartburn.
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