How To Sanitize Your Kitchen Sponges

July 18, 2016



As an object that holds soap, you wouldn’t think that a kitchen sponge needed to be cleaned.

But the reality is, kitchen sponges are one of the dirtiest objects in your entire home.

In fact, in a now well-known article from the Daily Mail, a study from Simmons College in Boston showed that the average kitchen sponge actually carries 200,000 times more bacteria than your toilet seat and that there’s a one in three chance that your sponge contains Staph.

Says the Daily Mail:

Professor Hugh Pennington, one of Britain’s leading microbiologists, agreed the kitchen and in particular the sponge was among the dirtiest places in the home.

He told MailOnline: ‘It would be fine to use the sponge to wash up with, wiping food off the plates in hot water, but never, never use a sponge to wipe a plate clean.

Now I’m not going to bore you with all the science of how and why because it’s pretty obvious that we should sanitize our sponges. But I do want to show you how with two very simple and quick ways to kill up to 99.9% of the germs in your kitchen sponges.

Use one of these methods at least once every few days, for your own safety and for the safety of everyone in your home.


Method 1: Soak in a bleach and water solution

Mix 3/4 cup of bleach with one gallon of water and let sit for 5 minutes. Then rinse thoroughly.

Unfortunately vinegar is not strong enough to kill the bacteria in a sponge this quickly but bleach is. If you’re looking for a more eco-friendly, non-bleach solution then move on to method 2.


Method 2: Zap in the microwave for 2 min

Place your sponge or sponges in the microwave and microwave them on high for 2 minutes. This should kill almost all the bacteria in your sponge.

You can actually do this for some of your kitchen towels as well, as they also are great and picking up and harboring many different kinds of bacteria.


You may or may not have know before but you should be sanitizing your sponges every few days. Same goes for your kitchen towels. Both these items are usually damp plus they’re in close contact with some very harmful bacteria. This makes them potentially dangerous to your health. Take the few minutes to sanitize your sponges and towels and you can rest easy knowing that you’re keeping your family’s health safer.


See also: How to Keep Your Cleaners Clean



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