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article imageFamous 'five second rule' debunked by researchers

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By Greta McClain     Oct 17, 2012 in Science
San Diego - Many of us have heard of the "five second rule", the "rule" saying if you drop a piece of food on the floor and pick it up within five seconds of contact, it is still safe to eat.
Most of us also realized that the five second rule was more of a guideline than a rule. Guideline or rule, the topic was actually the subject of a research study conducted at San Diego State University that was co-funded by Clorox. The researchers wanted to determine how long the "food on the floor" rule was applicable. Using carrots, researchers dropped the food on various surfaces such as countertops, kitchen sinks, floor carpet and tables. None of the surfaces could keep food clean for a full 5 seconds. Countertop surfaces actually fared worse than a carpet according to a Science 2.0 report.
A CBS News report states the study also found that 65 percent of parents said they had used the five second rule in their homes.
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Greg Williams
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Amy Rolph, a Seattlepi columnist, jokingly stated: "Turns out, the five-second rule is something your parents invented because they were too lazy to get you new Cheerios after you dumped them on the floor."
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More about Food, Germs, five second rule, 5 second rule
 
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