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.
High-risk food (like meat) thawed improperly, promoting bacterial growth.
Scoops and other in-use utensils stored improperly (e.g. handle down in the food).
Surfaces that touch food — cutting boards, ice bins, dish racks — soiled or not sanitized.