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Is it better to wash your hands in cold or hot water?

Is it better to wash your hands in cold or hot water?

The findings are in line with United Kingdom and worldwide advice that washing your hands with soap in either warm or cold water amounts to good protection from food poisoning, colds and flu.

Before the participants washed, their hands were swiped with harmless germs.

"This study may have significant implications towards water energy, since using cold water saves more energy than warm or hot water", he said.

Prof Donald Schaffner said: "People need to feel comfortable when they are washing their hands but as far as effectiveness [goes], this study shows us that the temperature of the water used did not matter". According to The Sun, besides varying the length of time the volunteers washed their hands, the researchers also varied the lathering time of the volunteers, the type of soap used, and the amount of soap used, to find out if any of those factors played a crucial role in getting germs off of a person's hands.

Instead of focusing on water temperature, researchers conclude that bacteria, even E. coli, can be removed from contaminated hands as long as proper handwashing technique and sanitary products are used.

In this study, scientists at Rutgers University-New Brunswick wanted to find out if popular assumptions about the benefits of warm or hot water and official guidance on hot water - given to the food industry in the USA - held true. They repeated these tests several times over six months.




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. Last year, the Food and Drug Administration issued a report that antibacterial soaps weren't more effective and could cause health problems. "Does it give us the definitive answer about hand washing?"

NHS advice says hands should be run under tepid running water, before liquid soap is applied to every surface of them, and rubbed vigorously for at least 10 to 15 seconds.

Do you use hot or cold water when you wash your hands?

Just a short rub of the hands made a major difference the study, published in the Journal of Food Protection, found. Professor Schaffner stated that there should be a change of policy in regards to handwashing policy in the workplace. A new study suggests you can turn the heat down a notch because cleaning your hands in cold water is just as good.

"When you want to decontaminate your hands by washing them, the soap chemically detaches the dirt and the organisms, which then come off after you rinse them", she said.

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