Floors, walls, ceilings, or attached equipment dirty, damaged, or poorly vented.
Missing hair or beard restraint, dirty work clothes, jewelry, or painted/artificial fingernails during food prep.
Surfaces that touch food — cutting boards, ice bins, dish racks — soiled or not sanitized.
Plumbing not installed or maintained properly — leaks, mop sink issues, unserviced water filters, or missing backflow prevention.