A food service worker should take at least 20 seconds to wash their hands.
Federal law requires that a food service worker should wash their hands for at least 20 seconds before going on to work. This must be done with soap and warm water and then rinsed and dried off with a paper towel.
The purpose of this is to reduce contamination as much as possible.
The soap and warm water will kill more germs and the use of a paper towel ensures that germs from someone else's hands will not pass on to the worker's hands.
The 20 seconds will give the soap and warm water ample time to kill most germs such that contamination is reduced significantly.
A related question to this one is shown in https://brainly.com/question/17561347.
