The 5-Second Rule: Take 30Seconds & Read This Important Health Information by Mei Marcie

Researchers at Rutgers University did an interesting study on the "5-second rule" (you know, the "rule" that says it's OK to pick up dropped food within five seconds and eat it). How do you study the 5-second rule? The team used:

• four different surfaces (stainless steel, ceramic tile, wood and carpet)

• four different foods (watermelon, bread, bread with butter, and gummy candy)

• four different contact times (less than 1 second, 5 seconds, 30 seconds and 300 seconds)

• the bacteria Enterobacter aerogenes, which is related to Salmonella

It was found that bacteria can contaminate instantaneously, and the wetter the food, the higher the risk of transfer. Longer food contact times usually resulted in the transfer of more bacteria from each surface. So, it may be time to rethink the 5-second rule! 

The study was published in the journal, Applied and Environmental Microbiology. 

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