
Baking soda, also known as sodium bicarbonate, is used in cooking and baking as a leavening agent. It works with other ingredients to help dough rise. Baking soda does this by producing carbon dioxide when mixed with moisture. The bubbles produced enable the dough to rise.
You'll find baking soda in a lot of cookie recipes, where its bitter taste can be countered. It is commonly paired with an acidic ingredient-vinegar, citrus, sour cream, yogurt, buttermilk, brown sugar or chocolate to name a few. When a recipe includes both baking powder and baking soda, the soda adds tenderness and the leavening action.
You can substitute baking powder in a recipe by mixing two parts cream of tartar with one part baking soda.
If baking soda is stored in an air-tight container, at room temperature, it has an indefinite shelf life. You can test for effectiveness by mixing it with a bit of vinegar. If it bubbles, it is still good!
Other uses for baking soda:
Cleaning agent-sprinkle on dirty pans or caked on oven, spray a bit of water and let sit for 4 hours. You should be able to wipe it right off with minimal effort
Fire extinguisher-baking soda puts out fires on clothing, fuel, wood, and upholstery.
Garage floor cleaner-spinkle on a greasy garage floor, let stand then rinse and dry.
Remove smoky smell from ash trays-wash with baking soda and water
Skin health-adding a bit of baking soda to your bath water will help soften skin, and added to your baby's bath will relieve diaper rash.
More skin health-mixing with water to form a paste will help topically if applied to a sunburn, bug bites, bee stings, windburns, diaper rash
Sources: Cookies-in-motion, Wikipedia, Woman's World Magazine, and BellyBytes