What is the proper technique for hand washing?

Washing hands for at least 20 seconds is essential to ensure that all surfaces of the hands, including between the fingers and under the nails, are thoroughly cleaned. This duration is supported by health organizations, which emphasize that effective handwashing requires enough time to effectively remove dirt, bacteria, and viruses. The technique involves using soap and clean running water, allowing the friction created during the washing process to dislodge any harmful microorganisms.

Shortening the washing time can drastically reduce its effectiveness, making it easier for germs to remain on the hands. In addition, washing only when visibly dirty overlooks many pathogens that might not be visible but can still cause illness. Finally, using only cold water does not provide the same effectiveness as using warm or hot water, which is more likely to enhance soap lathering and dislodging of germs. Therefore, the practice of washing hands for at least 20 seconds positions individuals to maintain better hygiene and health in any food service environment.