Who has
never been dropped food on the floor, has taken and has eaten consoling
themselves with the law of the five seconds, wishing that if the food hits the floor and you snatch it up in less than five seconds, it's safe to eat? I think that it has happened to
everyone once in live (as minimum)... But it's the food really safe or should we throw it away or wash it off? Are we believing in this unwritten rule as an excuse to salvage the last piece thta left of a cookie? For years, we have use this rule as a "sanitary excuse" to eat what has fallen, but I have a good new for all of us: we can keep your
conscience clear because an study ha prove that this myth is true!
Anthony Hilton, a
teacher of microbiology in the University of Aston, has lead an interesting
study for analyze if the "law of the five
seconds" it's true and according to which, you can only eat the food that
had been dropped on the floor if it has been there less than five seconds, time
for which the food is not contaminated. This investigation was carried out with
all kind of food as toast, pastries, cookies or candies fallen on
three types of floors: tiles, laminate and carpet and between an intervals of 3
and 30 seconds.
This study has demonstrated
that the time is a key factor for the transmition of the bacterium to the food,
but the kind of floor is another factor to consider. To the astonishment of
many and for the fate of many others, the researches found that in five
seconds, it's not possible that the food "catch" batteries and also,
that the floor with less possibilities of pollutes the foods is the carpet, the
tiles, by contrast, are the best allies of the bacteries. The texture of the
food also influence, is not the same dropping a toast with butter and jam
than dropping a piece of bread.
So next time, when
you drop a cookie down, pick it up, blow a little and you stick it in your
mouth in hopes of having eliminated the bacteria that could have caught, you
can be sure that your health will not be in danger.
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