Why you should microwave your sponges, according to science

The best manner to keep your sponges clean is to microwave them. We ’ ll show you why you should do this, and how to do it .

Why microwave sponges

A 2006 study found that kitchen sponges, scrubbing pads, and syringes were well cleaned of 99 to 100 % of all bacteria through simpleton microwave radiation for only a pair of minutes.


“ Basically, what we found is that we could knock out most bacteria in two minutes, ” said researcher Gabriel Bitton, professor of environmental engineering at the University of Florida. “ People frequently put their sponges and scrubbers in the dishwasher, but if they very want to decontaminate them and not just clean them, they should use the microwave. ”

Kitchen sponges are frequently in liaison with greasy constituent matter, and they can get dirty actually well. You ’ vitamin d think that the detergent and clean products actually kill the germs, but they in truth don ’ thyroxine. The odds are kitchen sponges are actually full of germs. In fact, Prof. Charles P. Gerba, a microbiologist, agrees. He writes that sponges are some of the best places in the kitchen for germs, providing a damp and nourish environment for many different bacteria .
now, there ’ s no reason to panic because that ’ s not the most dangerous thing in the world, but if you want to ensure the cleanliness of your sponges – you should microwave them. According to the report ’ randomness results, the entire bacterial count was “ reduced by more that 99 percentage within 1 to 2 minutes, and the union of coliform and E. coli were wholly inactivated after 30 seconds of microwave radiation. ” A few more repellent spores lasted up to 4 minutes, and after 10 minutes, there were simply no surviving bacteria in the sponge .

How to microwave your sponge

ad Odds are, first few times you ’ ll be doing this you ’ ll feel airheaded, but you actually shouldn ’ thymine .
The process itself is childlike and firm, but there are a few basic precautions you should take :

[ dialog box style= ” panel-success ” title= ” Basic precautions ” footer= ” ” ] – Make sure there ’ sulfur nothing metallic in your sponge ! This can completely ruin the microwave
– Insert the sponge moisture, not dry. If it ’ south dry, it can melt or even catch fire.
– Two minutes kills 99.9 % of all bacteria, 10 minutes is overkill and you risk melting the sponge.
– Let the sponge cool off a bit after microwaving it. [ /panel ]

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Leave this field empty if you’re human: other than that, the process is pretty square – you equitable microwave the sponge. There ’ mho no rule for how frequently you should do this, but Bitton ( the author of the survey ) says that once a day should be OK .


There are early alternatives to ensure the cleanliness of your sponges. You could boil them, but that ’ s neither time nor energy effective. You can besides try to soak them in bleach or vinegar, which is besides extremely effective at killing germs, but you need to constantly buy bleach or vinegar. All in all, microwave is the easiest, fastest and cheapest direction to keep your sponges clean.

If you don ’ triiodothyronine want to do either of the above, you can at least try to clean your sponge after washing the dishes. then, make certain you dry it and squeeze out angstrom much moisture as potential, and leave it on the bury, not in the bury .
besides, no matter what to do, sponges have to be changed regularly. Otherwise, no matter how unvoiced you try to clean them, they ’ ll merely get dirty again and lose their qualities .