Washing Hands With Cold Or Lukewarm Water May Be Just As Effective As Using Hot Water, Study Suggests.
TIME (6/1, MacMillan) reports that washing hands “with cold or lukewarm water will work just as well as hot water to remove bacteria, according to a new study published in the Journal of Food Protection.”
Handwashing experiments conducted with 21 volunteers revealed “no significant difference in cleaning power between water that was 60, 79 or 100 degrees Fahrenheit.” Investigators also “found that lathering hands for just 10 seconds was sufficient to remove germs.”