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.
Handwash sink missing, blocked, or used for other purposes, or missing soap, towels, or the handwash sign.
Surfaces that touch food — cutting boards, ice bins, dish racks — soiled or not sanitized.