Best Way To Get Germs Off A Kitchen Sponge


Even if you wash your kitchen sponge regularly, it can still be full of bacteria. Apparently, studies have shown that the average kitchen sponge can contain up to a million more germs than a toilet seat! And if you’re not careful, those germs can make it onto your dishes, your drinking glasses, and your countertops.

Here’s how to decontaminate your sponge:

Fortunately, the best way to decontaminate a sponge is also the easiest.

Best Way To Clean A Kitchen Sponge

Rinse it.
Wring it out.
Microwave it (on high) for 30 seconds.

It’s so easy, there’s no excuse not to clean your sponge every day.

NOTE: Apparently there are some sponge types which should not be microwaved, so check the packaging when you buy your sponge to discover if there is any messaging about this…

If without electricity, drop your sponge in boiling water for several minutes.

Mrs.J says that this is the best kitchen sponge:

Dobie All-Purpose Pad, 3 Count (Pack of 8)


  1. I keep a spray bottle of weak bleach solution handy in the kitchen. When I do my final wipe down, I spray all surfaces and use the sponge, then rinse the sponge.

  2. Every day? Assumes you use a sponge every day. I don’t. I do use hot water and dish soap before I use the sponge.

  3. FYI: not all brands of sponge can go in the microwave! I put mine in the microwave once & it started to smoke & emit a horrible smell. afterwards I found the label on a new package (because I had thrown out the package for the one I was using) & it said to NOT microwave under any circumstances because it would emit a toxic vapor! So be sure to check before you press start!

    …anyone recommend a cheap brand that *can* go in the microwave?

    1. Thanks for the heads-up on that. So far, all the sponges I’ve used for ordinary dish-washing have been okay in the microwave. The sponge you see in the article’s image above, is one of those which I use.

        1. Good idea. I just updated with a cautionary note. Although I am not aware of any particular sponge where this would be a concern, I suppose there may be some that have scouring materials that are metallic? (microwaves and metal aren’t good together). In any event, it’s good to check the packaging.

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