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Harmful bugs can thrive in your kitchen sponge for weeks, and you won't be able to tell

Phys.org — July 27, 2026 at 09:48 PM UTC

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Harmful bugs can thrive in your kitchen sponge for weeks, and you won't be able to tell

That kitchen sponge sitting by your sink is not as innocent as it looks. It could be harboring Salmonella enteritidis, E. coli or Staphylococcus aureus—and there's no way to tell just by looking at it or smelling it.