Food from an unapproved supplier, unsafe or spoiled food, missing shellfish harvest tags, or raw fish without required parasite destruction.
Food held, cooled, cooked, or reheated outside safe temperatures, letting dangerous bacteria multiply.
Surfaces that touch food — cutting boards, ice bins, dish racks — soiled or not sanitized.
Single-use items (cups, straws, to-go containers) stored or handled improperly.
Floors, walls, ceilings, or attached equipment dirty, damaged, or poorly vented.