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2025-01-09 15:28:54

Col on Nostr: Everyone knows the “five-second rule”, the theory that if you pick up food ...

Everyone knows the “five-second rule”, the theory that if you pick up food you’ve dropped on the floor quickly enough, then it’s probably safe to eat. Unfortunately, it’s balls, says Clarissa Brincat in Popular Science. When researchers in South Carolina tested the rule in 2006 by dropping some bologna sausage on to a salmonella-contaminated surface, they found that over 99% of the bacteria that transferred to the bologna did so within five seconds.
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