Raw meat, poultry, or seafood not separated from ready-to-eat food, or food left unprotected during prep, storage, or display.
Roaches, rodents, flies, or other pests present — or doors and openings that let them in not protected.
A sick or symptomatic employee present, or staff unaware of when illness bars them from working with food.
Water not safe, or hot (100°F) and cold water not available under pressure.