Which of the following is a physical hazard?

• A. Milk
• B. Glass
• C. Pesticides
• D. Bacteria

Answer: (B)

Physical hazards are foreign objects in food that can cause injury if consumed. Glass is a classic example because it’s an inedible, hard material that can break off during processing or handling and end up in a product, potentially cutting or choking someone. The other options aren’t physical hazards by themselves: milk is a normal edible product; pesticides are chemical hazards—toxins that contaminate food; bacteria are biological hazards—living organisms that can cause illness. So glass best fits the definition of a physical hazard, and preventing such hazards involves careful handling, good supplier controls, and preventing broken glass from entering foods.