The '5-Second Rule' For Eating Food Off The Floor Isn't True, According To Science
September 27, 2016
A new study by Rutgers University reveals that the five-second rule isn’t true. So you might want to rethink eating off the floor next time you drop your food…
According to the findings, food contracts bacteria as soon as it touches the ground–it doesn’t matter how swift you are scooping up that piece of chocolate. However, the type of food and surface, as well as time spent on the floor, make a difference in how much bacteria is contracted.
The study looks at four different types of food (watermelon, bread, bread with butter and gummy candy) dropped on four different types of floors (stainless steel, ceramic tile, wood and carpet) to see which combination produced the most and least amount of bacteria. The food was also left on the floor for four different amounts of time: less than one second, five seconds, 30 seconds and 300 seconds.
Unsurprisingly, watermelon acquired the most amount of bacteria because it’s made up of a ton of liquid that absorbs real quick. The second worst was bread with butter, followed by bread and then gummy candy. Now the surprising part is that carpet was the surface that transferred the lowest amount of bacteria. Stainless steel and ceramic tile equally transferred a lot, while wood varied depending on the quality.
So, basically, don’t eat off your floor. Ever.