What is the best technique for handwashing?

The best technique for handwashing is scrubbing with soap and water for at least 20 seconds. This method is effective because it not only involves the physical action of rubbing hands together to remove dirt and germs but also incorporates the use of soap, which helps to break down oils and pathogens. The recommended duration of at least 20 seconds ensures that enough time is spent removing contaminants from all surfaces of the hands, including areas that are often missed, such as between the fingers and under the nails.

Hand sanitizer can be effective, especially when soap and water are not available, but it may not eliminate all types of germs, particularly if hands are visibly dirty or greasy. Wiping hands with a tissue does not provide a thorough cleaning and is not an effective substitute for handwashing. Briefly rinsing hands under water also does not adequately remove germs and can lead to a false sense of cleanliness.

Overall, the correct technique emphasizes the combination of mechanical action and the use of soap to achieve the highest level of hand hygiene.