Final answer:
Having a guest use a new plate for the second serving is not required in self-service food bars.
Step-by-step explanation:
Protecting food from contamination in self-service food bars is important. One procedure that is NOT required in self-service food bars is having a guest use a new plate for the second serving. It is essential to install sneeze guards for self-service soup containers, label the name of each menu item, and install sneeze guards above the salad bar to prevent contamination and ensure food safety.
Learn more about Food safety in self-service food bars