What is cross-contamination, and how can HACCP prevent it?

• A. The deliberate contamination of ingredients with safe substances.
• B. The natural mutation of pathogens in raw foods.
• C. The transfer of hazards (biological, chemical, or physical) from one item to another.
• D. A routine cleaning process that eliminates all hazards.

Answer: (C)

Cross-contamination means hazards such as biological pathogens, chemical residues, or physical particles being transferred from one item to another. This can happen through contact with contaminated surfaces, equipment, hands, or improper storage, for example raw chicken touching a ready-to-eat salad, or using the same knife without cleaning it between tasks.

HACCP prevents cross-contamination by locating where transfers could occur and putting preventive controls in place at those points. This includes separating raw and ready-to-eat foods in storage and on the line, using dedicated equipment or color-coded utensils, and cleaning and sanitizing surfaces and equipment between tasks. It also involves good personal hygiene, proper handwashing, clean protective clothing, and correct storage practices to stop drips or contact between items. Allergen management is part of this too, to prevent allergen transfer to other products. By designing the flow of work to minimize contact and by verifying that these preventive steps are followed, HACCP reduces the risk of cross-contamination throughout the process.