Food held, cooled, cooked, or reheated outside safe temperatures, letting dangerous bacteria multiply.
Food from an unapproved supplier, unsafe or spoiled food, missing shellfish harvest tags, or raw fish without required parasite destruction.
Water not safe, or hot (100°F) and cold water not available under pressure.
Dish machine or sinks not set up or working properly, or missing sanitizer test kit and gauges.
Scoops and other in-use utensils stored improperly (e.g. handle down in the food).
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.