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According to a common misconception, hand washing is only effective with warm water. That is not true. Whether it is cold or warm, it depends on something else.
We have known about the effectiveness of regular hand washing since the coronavirus pandemic. Essential: soap and water. But does it have to be warm water, or is cold water enough to wash away dirt, viruses, and germs effectively?
Scientists have also thought about this and tested the effectiveness of soap (antibacterial versus non-antibacterial) in combination with different water temperatures (4 degrees, 13 degrees, 21 degrees, 35 degrees, and 49 degrees) in a study. The result: the temperature of the water has no influence on the reduction of bacteria. The effectiveness lies in the soap we use (in sufficient quantity!) and not in the water temperature. We need the water to lather the soap. By the way: you don’t necessarily need an antibacterial soap to wash your hands effectively. Any soap will do the job.
Briefly hold your hands under running water. Take enough soap, lather up, and soap thoroughly for 20 to 30 seconds. Do not forget the palms of your hands, the backs of your hands, and the spaces between your fingers and your fingertips. Rinse under running water. Finally, dry your hands well!
- source: heute.at/picture: pixabay.com
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