You’ve probably seen the words “sanitize” and “disinfect” on just about every cleaning product in the store, and maybe you’ve wondered if they’re basically the same thing. After all, both seem to involve making things cleaner and safer. But there’s actually an important difference between the two, and knowing when to use each one can save you time, money, and effort while keeping your family healthier. Let’s break it down in plain language.

Think of sanitizing as the lighter, everyday step. When you sanitize a surface, you’re reducing the number of germs on it to a level that’s considered safe by public health standards. This is usually enough for things like kitchen countertops after you’ve prepped raw vegetables, or your dining table after a meal. Sanitizing doesn’t kill every single germ—it just brings the count down low enough that it’s not likely to make you sick. Many common cleaning products, like a simple mixture of dish soap and water or a diluted bleach solution used at the right strength, can sanitize surfaces effectively.

Disinfecting, on the other hand, is the heavy hitter. When you disinfect, you’re killing or inactivating nearly all germs on a surface, including bacteria, viruses, and fungi. This is what you want to do when someone in the house is sick, after handling raw meat or poultry, or if you’ve had a pet accident on the floor. Disinfecting is also crucial for high-touch areas like light switches, door handles, remote controls, and toilet flush levers. The Environmental Protection Agency (EPA) requires disinfectants to reduce germs by a much higher percentage than sanitizers do, so they’re stronger and often require leaving the product on the surface for a certain amount of time—called the dwell time—to work fully.

So, which one should you reach for in your DIY home projects? For regular daily cleaning, sanitizing is perfectly fine. For example, after you wipe down your kitchen counters with a mild soap, you can follow up with a sanitizing spray that’s designed for food-contact surfaces. But if you’re cleaning up after someone’s been sick, or you want to deep-clean a bathroom, go with a disinfectant. Just remember to clean the surface first with soap and water to remove dirt and grime—disinfectants don’t work well on dirty surfaces because the organic matter can shield the germs from the chemicals.

Now, let’s talk about some common home-disinfection ingredients you might already have. Bleach is a powerful disinfectant when diluted correctly—usually about one-third cup of bleach per gallon of water for general disinfection. But bleach can damage some surfaces, fade fabrics, and irritate your lungs, so always open a window and wear gloves when using it. Hydrogen peroxide (the three-percent solution from the drugstore) is another good choice, especially for cutting boards and countertops. It’s less harsh than bleach and breaks down into water and oxygen, making it safer for the environment. Rubbing alcohol (at least 70 percent isopropyl alcohol) works well for small items like phone screens and glasses, but it evaporates quickly, so you need to keep the surface wet for several seconds.

One important thing to remember: never mix bleach with ammonia or other cleaners—that combination can produce toxic chlorine gas. And always read the label on any commercial disinfectant. The label will tell you the required dwell time (often thirty seconds to ten minutes), what surfaces it’s safe for, and any precautions. If you don’t leave the product on for long enough, you’re really just sanitizing, not disinfecting.

In your home, a good rule of thumb is to sanitize high-traffic surfaces daily or after cooking, and to disinfect them more thoroughly once a week or whenever there’s a specific risk, like a stomach bug going around. For toys, baby items, and pet dishes, sanitizing is usually enough unless they’ve been visibly soiled. And don’t forget your sponges and dishcloths—these can harbor tons of germs. You can disinfect a sponge by microwaving it wet for a minute (make sure it’s damp, not dry) or running it through the dishwasher on a hot cycle.

The bottom line? Sanitizing is your everyday maintenance, and disinfecting is your deep clean. Both are important tools in a homeowner’s cleaning arsenal, and using them correctly will help keep your home safe without overdoing it. So next time you reach for a spray bottle, take a quick look at the label, think about what you’re cleaning, and choose accordingly. Your family—and your counters—will thank you.