Which step in the handwashing technique helps to create friction to lift dirt and microbes?

Lathering and scrubbing hands is crucial in the handwashing technique because it creates the necessary friction to effectively remove dirt, grime, and microbes from the skin. When hands are lathered with soap and scrubbed together, the physical motion between the skin surfaces, as well as the interacting particles of soap, work to dislodge pathogens and contaminants. This friction enhances the cleaning process, ensuring that microorganisms are not only loosened but also suspended in the soapy mixture so they can be rinsed away.

While rinsing hands under water is important for removing the soap and any loosened debris, it does not actively contribute to the process of lifting and removing the contaminants as effectively as the scrubbing action does. Applying soap is a necessary preparatory step, as it begins the cleaning process, but without the scrubbing motion, the soap alone may not suffice to eliminate all potential pathogens. Dabbing hands dry with a towel is also an essential step, as it removes remaining moisture, but it does not facilitate the removal of dirt or microbes in the same way that scrubbing does. Thus, lathering and scrubbing is the step that is most effective for creating the friction needed for thorough hand hygiene.