Over the years, I have run across many people giving voice to the “five-second rule” when a piece of food or piece of flatware hits the floor. According to common belief, a the item is not supposed to be affected by any bacteria on the floor if it is picked up within five seconds. (Memory fails me, but I believe I’ve also invoked the rule on a number of occasions.)
However, science research has determined that the “rule” is based on a fallacy, and the item does indeed become contaminated. Prudence says throw away (and don’t eat) the food or wash the flatware before using it.
For more information:
New York Times: Science: The 5-Second Rule (28 FEB 11)
Clemson: Public Service Activities: Paul Dawson: The Five-Second-Rule
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