Which of the following is considered a medium violation?

The correct answer identifies "not temping teriyaki chicken" as a medium violation because it pertains to food safety practices that are essential to ensure that food is being cooked and held at safe temperatures to prevent foodborne illnesses. Monitoring the internal temperature of cooked items like teriyaki chicken is critical, as it can help prevent the growth of harmful bacteria that thrive in improperly handled food.

This violation, while serious, is not as immediately dangerous as a rodent or pest infestation, which can indicate a broader environmental issue that could compromise multiple areas of food safety in an establishment. Similarly, employee health issues and flies touching food surfaces denote more severe risks to patrons that can lead to more significant health problems and regulatory implications. These larger concerns can lead to critical violations that threaten public safety more directly.

Understanding the nuance in categorizing violations is vital in maintaining compliance with health and safety standards in food service establishments.