Wednesday, March 2, 2011

Testing the five-second rule scientifically

In a study published in 2007 in The Journal of Applied Microbiology, Clemson University researchers tested salmonella placed on wood, tile or carpet, and dropped bologna on the surfaces for 5, 30 or 60 seconds. With both wood and tile, more than 99 percent of the bacteria were transferred nearly immediately, and there was no difference by the time of contact. Carpet transferred a smaller number of bacteria, again with no difference by contact time.
--C. Claiborne Ray, NYT, on an answer you probably already knew deep inside but chose to ignore

No comments: