What does the handwashing duration of 20 seconds help to achieve?

The handwashing duration of 20 seconds is specifically recommended to ensure the effective removal of pathogens and contaminants from the hands. This time frame allows for thorough scrubbing of all surfaces of the hands, including the backs of the hands, between the fingers, and under the nails, which are common areas where germs can reside.

Research has shown that washing hands for at least this duration significantly reduces the presence of harmful microorganisms, thereby minimizing the risk of spreading infections and diseases. The 20-second guideline is a practical measure intended to promote good hygiene practices, particularly in environments such as food service, where the safety and health of both staff and customers are critically important.

Other options, while potentially relevant to hygiene practices, do not directly correlate with the primary purpose of handwashing duration. For example, handwashing does not primarily enhance skin hydration or improve hand strength, nor is it intended to focus on scent enhancement, but rather on the critical aspect of pathogen removal.