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.
Roaches, rodents, flies, or other pests present — or doors and openings that let them in not protected.
Cleaning chemicals or other toxic substances unlabeled or stored where they can reach food.
Plumbing not installed or maintained properly — leaks, mop sink issues, unserviced water filters, or missing backflow prevention.