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.
Shelves, counters, handles, or equipment exteriors soiled with grease, debris, or dust.
Plumbing not installed or maintained properly — leaks, mop sink issues, unserviced water filters, or missing backflow prevention.