We know that handwashing stops the spread of germs, but is hot water really better than cold?

Interestingly, a new Rutgers-New Brunswick study found that cool water removes the same amount of harmful bacteria as hot.

“People need to feel comfortable when they are washing their hands but as far as effectiveness, this study shows us that the temperature of the water used didn’t matter,” says Prof Donald Schaffner.

Schaffner is a distinguished professor and extension specialist in food science.

For the study, high levels of a harmless bacteria were put on the hands of 21 participants multiple times over a six-month period before they were asked to wash their hands in various temperatures of water using small amounts of soap.

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The researchers found that even washing for just 10 seconds significantly removed bacteria from the hands.

Source: Rutgers University via www.sciencedaily.com

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