We all know about the five-second rule, right? Youre eating popcorn, and you drop a kernel on the floor. If you pick it up within five seconds its totally OK to eat, according to the rule. The rule saves time and effort. After all, you dont have to find something else to eat and you dont have to clean that shit up off the floor. Besides, if you pick it up before germs have a chance to jump on it, its totally safe. No harm no foul, right?
A couple of weeks ago I saw a new scientific paper from Clemson University that struck me as both pioneering and hilarious.
Accompanied by six graphs, two tables and equations whose terms include bologna and carpet, its a thorough microbiological study of the five-second rule: the idea that if you pick up a dropped piece of food before you can count to five, its O.K. to eat it.
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I learned from the Clemson study that the true pioneer of five-second research was Jillian Clarke, a high-school intern at the University of Illinois in 2003. Ms. Clarke conducted a survey and found that slightly more than half of the men and 70 percent of the women knew of the five-second rule, and many said they followed it.
She did an experiment by contaminating ceramic tiles with E. coli, placing gummy bears and cookies on the tiles for the statutory five seconds, and then analyzing the foods. They had become contaminated with bacteria.
For performing this first test of the five-second rule, Ms. Clarke was recognized by the Annals of Improbable Research with the 2004 Ig Nobel Prize in public health.
Improbable perhaps, but useful? Hell yes! Ive been following this rule since I was a wee lad. Id always assumed it was bullshit, but it means more to actually know it. Scientifically and stuff. I know that those of you who are against wasting money on useless studies arent impressed, but its not like there are endless jobs available at the Cancer Curing Factory. All the other scientists need stuff to do as well, or else theyll get bored. If Real Genius taught us anything its that the world doesnt need any more bored scientists.
Anyway, I digress. The more recent Clemson study went even further to test the time-germ-surface continuum.
Their bacterium of choice was salmonella; the test surfaces were tile, wood flooring and nylon carpet; and the test foods were slices of bread and bologna.
First the researchers measured how long bacteria could survive on the surfaces. They applied salmonella broth in doses of several million bacteria per square centimeter, a number typical of badly contaminated food.
I had thought that most bacteria were sensitive to drying out, but after 24 hours of exposure to the air, thousands of bacteria per square centimeter had survived on the tile and wood, and tens of thousands on the carpet. Hundreds of salmonella were still alive after 28 days.
Professor Dawson and colleagues then placed test food slices onto salmonella-painted surfaces for varying lengths of time, and counted how many live bacteria were transferred to the food.
On surfaces that had been contaminated eight hours earlier, slices of bologna and bread left for five seconds took up from 150 to 8,000 bacteria. Left for a full minute, slices collected about 10 times more than that from the tile and carpet, though a lower number from the wood.
Its important to keep in mind that the contaminant levels that were tested here were far higher than are found on your average floor or countertop. Unless youre the kind of person who habitually paints his linoleum with rotting chicken guts (and if you are, youve got bigger problems) the number of microbes you pick up will be much lower. Unfortunately, they may not be low enough.
But even if a floor or a countertop, or wrapper carried only a thousandth the number of bacteria applied by the researchers, the piece of food would be likely to pick up several bacteria.
The infectious dose, the smallest number of bacteria that can actually cause illness, is as few as 10 for some salmonellas, fewer than 100 for the deadly strain of E. coli.
Lame. Its like my last vestige of carefree childhood innocence has been stripped away. Thanks for nothing, New York Times columnist Harold McGee. Dickface.
That's why god gave us immune systems. It's like exercise for your immune system. Besides, everyone knows the "five second rule" is just an excuse for disgusting people (like myself) to eat crap.
The 5 second rule is something I don't live by. I also absolutely refuse to eat food that has fallen onto a tabletop when we go out. I know the dishes themselves are probably just as dirty, but I just can't bring myself to eat off a surface that I know has was cleaned with the other tables around, covered in kid snot and whatever was brewing in that dingy gray towel the busboy is carrying.
Interesting article-- but still, if it is such a bad thing, why haven't more people gotten sick from eating that precious M&M you dropped on the floor or the last morsel of sandwich you craved so desperately? It seems that if it were so bad, it would show.
On the other hand, how many of us have had mild indigestion for no apparent reason? Hmm...
Koleeta said:
That's why god gave us immune systems. It's like exercise for your immune system. Besides, everyone knows the "five second rule" is just an excuse for disgusting people (like myself) to eat crap.
this article was disappointing of course, because no one really wants to think that the five-second rule is bullsht (even though i'm pretty sure most of us know deep down that it is).
the saving grace was the real genius reference. viewing of this movie is quite simply a moral imperative.
"can you hammer a six-inch spike through a board with your penis?"
Eating stuff off the floor, having a kid in group daycare, using port-a-potties at festivals and avoiding antibacterial products - haven't been sick in years. No better way to strengthen the immune response than wallowing in filth daily.
since i likely will not be employed anytime soon at the cancer curing factory due to being asked to leave all those schools and missing out on all that educationy stuff, i am forced to direct my scientific inclinations to hypotheses like the following:
on the off chance one winds up ingesting e coli or salmonella, it's far more likely said food acquired the bacteria on its journey to the home rather than on its floor.
Subrosa
San Francisco, CA
July 2004
MAY 11, 2007 09:57 AM