Cleaning chemicals or other toxic substances unlabeled or stored where they can reach food.
Scoops and other in-use utensils stored improperly (e.g. handle down in the food).
Missing hair or beard restraint, dirty work clothes, jewelry, or painted/artificial fingernails during food prep.
Plumbing not installed or maintained properly — leaks, mop sink issues, unserviced water filters, or missing backflow prevention.
Mops, brooms, and other cleaning and maintenance equipment stored or maintained improperly.