Food held, cooled, cooked, or reheated outside safe temperatures, letting dangerous bacteria multiply.
Dish machine or sinks not set up or working properly, or missing sanitizer test kit and gauges.
Plumbing not installed or maintained properly — leaks, mop sink issues, unserviced water filters, or missing backflow prevention.
Floors, walls, ceilings, or attached equipment dirty, damaged, or poorly vented.