Cross-contamination is defined as the transfer of contaminants from raw to ready-to-eat foods.

• A. The transfer of contaminants from cooked foods to raw foods.
• B. The transfer of contaminants from raw to ready-to-eat foods.
• C. The contamination of water supply.
• D. Contamination that occurs only during processing plants.

Answer: (D)

Cross-contamination happens when contaminants move from raw foods to ready-to-eat foods, often through shared surfaces, utensils, or hands that touch both. Raw animal products can carry bacteria, and their juices or residues can transfer to foods that won’t be cooked before eating, leading to illness. This is why practices like using separate cutting boards and knives for raw and cooked foods, thoroughly cleaning and sanitizing any surfaces or equipment after handling raw items, washing hands well, and storing raw products away from ready-to-eat items are essential. It isn’t about contamination of the water supply, nor is it limited to processing plants; cross-contamination can occur anytime raw foods and ready-to-eat foods come into contact or share the same space, such as in home kitchens, grocery stores, or food service operations.