Food held, cooled, cooked, or reheated outside safe temperatures, letting dangerous bacteria multiply.
Raw meat, poultry, or seafood not separated from ready-to-eat food, or food left unprotected during prep, storage, or display.
Cleaning chemicals or other toxic substances unlabeled or stored where they can reach food.
Water not safe, or hot (100°F) and cold water not available under pressure.
Surfaces that touch food — cutting boards, ice bins, dish racks — soiled or not sanitized.
Shelves, counters, handles, or equipment exteriors soiled with grease, debris, or dust.