When you drop a piece of food on the floor, is it really OK to eat if you pick up within five seconds? This urban food myth contends that if food spends just a few seconds on the floor, dirt and germs won't have much of a chance to contaminate it. Research in my lab has focused on how food and food contact surfaces become contaminated, and we've done some work on this particular piece of wisdom.
Related Video: 13 Germ-Covered Things in Every Purse
Where Did the Five-Second Rule Come From?
Five Seconds Is All It Takes
How Much Bacteria Actually Transfer in Five Seconds?
Should You Eat Food That's Fallen on The Floor?
Written by Paul Dawson for The Conversation December 28, 2018
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