Hands Washing Efficiency
A study conducted by researchers at the University of Arizona found that washing hands with cold water is just as effective at killing germs as washing hands with hot water. The study analyzed the effectiveness of different water temperatures in removing bacteria from hands. The researchers found that washing hands with water at a temperature of 15°C (59°F) was almost as effective at removing bacteria as washing hands with water at a temperature of 38°C (100°F), the temperature typically recommended for hand-washing....