Does Baking Soda Really Kill Bacteria?

Looking at the Claims

Baking soda has earned its spot in kitchen cupboards around the world. People add it to cookies, freshen up their fridges, and reach for it during cleaning sprees. The label usually says “sodium bicarbonate,” and plenty of folks swear it can do everything from whiten teeth to take the sting out of bug bites. Recently, more are talking about its power to kill bacteria, sometimes using it instead of mainstream cleaning products.

Scrubbing and Science

I grew up in a house where we sprinkled baking soda on just about every surface before scrubbing. Glasses sparkled, sinks looked new again, and greasy stovetops lost their sticky layer. The process works, mostly because of the gritty texture and its ability to break up stubborn messes. But people also started believing that baking soda alone wipes out germs. This is where science asks us to slow down.

Baking soda does not boast strong antibacterial power on its own. Researchers at Rutgers and the CDC point out that, as a mild alkaline powder, it can disrupt some bacteria but fails to kill most of the common bacteria and viruses found at home. Studies published in the Journal of Food Protection found baking soda lowered bacteria levels ever so slightly when used on produce, but vinegar outperformed it, and commercial disinfectants easily topped both. The American Dental Association agrees that using baking soda toothpaste helps scrub away plaque, but it doesn’t mean it sanitizes or zaps germs on contact.

The Real Heroes: Soap and Disinfectant

Soap, water, and elbow grease go a long way. On hands and surfaces, soap removes bacteria and viruses by lifting them away so they can be washed down the drain. Bleach or hydrogen peroxide work faster at knocking out germs. My parents used to add a splash of bleach to mop buckets once a week, which the CDC still backs for good reason—it kills norovirus, salmonella, E. coli, and a whole lineup of microbes.

Baking soda’s strength shines as a deodorizer and gentle abrasive. It separates stains from surfaces, making it easier to wipe things clean, but it stops short of sanitizing. The Centers for Disease Control and the EPA do not list baking soda as a disinfectant. Hospitals and restaurants never rely on it to clean up norovirus spillover or sanitize cutting boards. Good hygiene habits matter. Keeping up with regular handwashing, cleaning with soapy water, and following up with a disinfectant in kitchens and bathrooms lowers the risk of infection much more than a sprinkle of powder.

Choosing the Right Tool for the Job

Baking soda remains a cheap and handy cleaner, from freshening carpets to tackling coffee stains on mugs. Some brands even blend it with peroxide in toothpaste for a deeper clean, suggesting a trend toward natural but vetted ingredients. Mixing it with vinegar usually creates impressive fizz, but that’s mostly just fun to watch—the resulting solution offers less cleaning power than bleach or an EPA-approved disinfectant. If killing bacteria or viruses ranks high on your list, choose products that carry proven credentials.

The push for greener cleaning picks up steam every year, and baking soda will hold its place, but no one should confuse it with real germ-killers. Stubborn stains and smells rarely stand a chance, but for fighting bugs that can make you sick, it’s time to reach for the right soap or sanitizer.