What can be done to reduce cross-contamination?

• A. Wearing gloves at all times without training
• B. Storing all foods together on the same shelf
• C. Increasing cooking temperatures only
• D. Effective instruction, supervision and training of food handlers, separation of raw and ready-to-eat food (colour-coding), effective cleaning and disinfection, use of disposable paper cloths or colour-coded cloths, not using washbasins for washing food or equipment

Answer: (D)

Preventing cross-contamination comes from a coordinated set of practices that focus on people, processes, and cleanliness. When food handlers are well instructed and supervised, they understand how pathogens can move from raw to ready-to-eat foods and follow consistent habits to stop that transfer. Separating raw and ready-to-eat foods—often supported by color-coding—helps ensure raw juices or contaminated surfaces don’t come into contact with foods that won’t be cooked before eating. Combining this with effective cleaning and disinfection of work surfaces and equipment reduces any remaining pathogens, and using disposable paper towels or color-coded cloths prevents cross-contact from cleaning tools. Not using washbasins for washing food or equipment keeps dirty water and transfer risks out of the food preparation area.

These elements together address the main routes of cross-contamination: contact via hands, utensils, and surfaces, and improper handling. Wearing gloves without training can create a false sense of safety and still spread contaminants if they’re not used correctly or changed regularly. Storing all foods together on the same shelf mixes raw and ready-to-eat items and allows contamination to spread. Merely increasing cooking temperatures tackles pathogens after cooking but doesn’t stop contamination during preparation or storage. The comprehensive approach in the correct answer directly reduces the opportunities for contamination to occur in the first place.