Don't Throw Away Expired Baking Soda: Do This Instead - Tasting Table

"If you want the perfect rise to your baked goods, you have to use baking soda in its prime - which is about three years unopened, six months opened, and ultimately, depends on the date listed on your package. If you're unsure, drop a spoonful into vinegar to see if it fizzes or not, as no fizz indicates expired baking soda."

"It's one of the easiest ways to combat an insect infestation as you barely have to do anything, plus, it's effective and, of course, it's free since you already have it hanging out in your cabinets. Simply place your expired package of baking soda open near any spot where you've seen bugs getting into the room. One of several common pantry staples that deter pests, baking soda, in particular, dehydrates insects to the point that they dry out and die."

"Simply sprinkle it around your plants to create a barrier that will protect your flowers or herbs from nosy bugs. Here, too, you can mix it up with sugar to attract and kill pests; just be careful not to overdo it, as baking soda alters the pH of soil - ask a pro at your local nursery or plant shop if your plants need acidic soil, as baking soda can lower that necessary acid."

Baking soda remains most effective for baking for about three years unopened and six months after opening; a vinegar test reveals activity by fizzing. Expired baking soda should not be used in food but can be repurposed as a pest control tool. Leaving an open package near entry points or combining baking soda with sugar or vinegar can dehydrate and kill insects. Sprinkling baking soda around garden plants creates a protective barrier, though excessive use can alter soil pH. Consult a nursery or plant shop before applying to plants that require acidic soil to avoid harm.

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