NEW BRUNSWICK, N.J., May 31, 2017 /PRNewswire/ -- We all know that washing our hands
"People need to feel comfortable when they are washing
In the Rutgers study, published in the June issue of the Journal of Food Protection, 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 60-degree, 79-degree or 100-degree water temperatures using 0.5 ml, 1 ml or 2 ml volumes of soap.
"This study may have significant implications towards water energy, since using cold water saves more energy than warm or hot water," said Schaffner. "Also we learned even washing for 10 seconds significantly removed bacteria from the hands."
While the study indicates that there is no difference between the amount of soap used, more work needs to be done to understand exactly how much and what type of soap is needed to remove harmful microbes, said co-author Jim Arbogast, vice president of Hygiene Sciences and Public Health Advancements for GOJO. "This is important because the biggest public health need is to increase handwashing or hand sanitizing by foodservice workers and the public before eating, preparing food and after using the restroom," Arbogast said.
These findings are significant because the U.S. Food and Drug Administration issues guidelines, every four years, to states. The guidelines currently recommend that plumbing systems at food establishments and restaurants deliver water at 100 degrees Fahrenheit for handwashing.
Schaffner said the issue of water temperature has been debated for a number of years without enough science to back-up any recommendation to change the policy guidelines or provide proof that water temperature makes a difference. Many states, in fact, interpret the FDA guidelines as a requirement that water temperature for handwashing must be 100 degrees, he said.
"Instead of having a temperature requirement, the policy should only say that comfortable or warm water needs to be delivered. We are wasting energy to heat water to a level that is not necessary," Schaffner said.
To view the original version on PR Newswire, visit:http://www.prnewswire.com/news-releases/handwashing-cool-water-as-effective-as-hot-for-removing-germs-300466408.html
SOURCE Rutgers University
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