Food from an unapproved supplier, unsafe or spoiled food, missing shellfish harvest tags, or raw fish without required parasite destruction.
Food held, cooled, cooked, or reheated outside safe temperatures, letting dangerous bacteria multiply.
Dirty wiping cloths not stored in sanitizer, or soiled linens handled improperly.
Plumbing not installed or maintained properly — leaks, mop sink issues, unserviced water filters, or missing backflow prevention.