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Study: Germs are Faster than '5 Second Rule'

The famous “five second rule" says that if dropped food is picked up within five seconds, it is safe to eat.

However, a new study has recently debunked that urban myth.

The study, co-funded by Clorox and performed by researchers at San Diego State University, found that germs attach themselves to food within five seconds, reports the McClatchy-Tribune News Service.

In the study, baby carrots were dropped on a countertop, kitchen sink, table, and both a carpeted and tiled floor. Another carrot was kept clean, to serve as a constant.

The study found that germs affixed themselves to the carrots within five seconds of contact with the different surfaces.

The Centers for Disease Control and Prevention recommends frequent cleanings of surfaces and hands. Germs can live on utensils and cutting boards.


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