Conventional wisdom says that the best way to wash your hands is with soap and plenty of hot water. Well, prepare to have your mind blown! According to this study, it’s not the temperature of the water that matters for getting bacteria off your hands, or even whether the soap is antibacterial. What really matters is how long you lather, with 20 seconds being more effective than 5 seconds. I guess surgeons knew something we didn’t!
Quantifying the Effects of Water Temperature, Soap Volume, Lat