Food held, cooled, cooked, or reheated outside safe temperatures, letting dangerous bacteria multiply.
Handwash sink missing, blocked, or used for other purposes, or missing soap, towels, or the handwash sign.
Surfaces that touch food — cutting boards, ice bins, dish racks — soiled or not sanitized.
Missing hair or beard restraint, dirty work clothes, jewelry, or painted/artificial fingernails during food prep.