Why are clean plates required for each trip to a buffet?

Clean plates are required for each trip to a buffet primarily to prevent contamination. When a diner uses the same plate for multiple trips, there is a significant risk of transferring bacteria, viruses, or food allergens from one food item to another. This cross-contamination can lead to foodborne illnesses, as pathogens can thrive on surfaces that may have come into contact with different foods. By using a clean plate each time, diners help to maintain food safety standards and protect themselves and others from potential health hazards.

While portion size, presentation, and compliance with hygiene regulations are important considerations in a buffet setting, the critical focus here is on the prevention of contamination to ensure a safe dining experience.