What is the recommended procedure for washing hands effectively?

The recommended procedure for washing hands effectively involves using soap and warm water, scrubbing for at least 20 seconds. This method is key to properly removing dirt, bacteria, and viruses that can linger on your skin. Soap works by breaking down oils and dirt, while the action of scrubbing creates friction that helps dislodge these contaminants from the skin.

Using warm water enhances the effectiveness of the soap, making it easier for it to lift away germs. The 20-second duration is significant; studies show that this amount of time is necessary to adequately clean the hands and reduce the microbial load.

In contrast, solely using water without soap does not effectively remove pathogens and can leave behind harmful microorganisms. Relying on alcohol sanitizer alone does not substitute for handwashing, especially when hands are visibly dirty or greasy, because sanitizer is less effective against certain types of germs. Washing with cold water and scrubbing for a shorter duration does not ensure thorough cleaning, making it less effective in reducing contamination. Therefore, the proper handwashing technique is crucial for maintaining food safety and preventing the spread of illness.