Does Microwaving Sponges Disinfect Them??

The scientists reported that simply microwaving sponges (completely wet, never dry) for two minutes at high power killed or inactivated over 99 percent of pathogens in sponges that had been soaked in a “witch’s brew” of fecal bacteria, viruses, protozoan parasites, and bacterial spores.

Does boiling a sponge sanitize it?

Forget the microwave and the dishwasher, and don’t bother boiling it in a pot. There’s only one way to truly disinfect that stinky kitchen sponge—and even then, it will never be clean enough for food prep surfaces again. Sponges.

Does boiling kitchen sponges kill bacteria?

Clean the sponge every few days.

But the heat targets the dangerous ones, Quinlan says. “It doesn’t sterilize the sponge,” she says. “But remember, the bacteria we want to kill are the ones that will make you sick.” In the new study, cleaning apparently boosted the levels of two species.

How long do you microwave a kitchen sponge to sterilize it?

Microwave Sterilizes Sponges

  • Microwave only sponges or plastic scrubbers that do not contain steel or other metals.
  • Make sure the sponge or scrubber is wet, not dry.
  • Two minutes should be enough to kill most disease-causing germs.

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