Which measure helps prevent contamination in food handling operations?

• A. Storing foods in open containers
• B. Purchasing food from approved suppliers
• C. Using untrained staff
• D. Cooking food to safe temperatures

Answer: (B)

Preventing contamination starts with getting safe ingredients from trusted sources. Purchasing from approved suppliers is the strongest measure because these suppliers are checked for food safety practices, traceability, and proper handling during storage and transport. By choosing approved suppliers, you reduce the chance that raw ingredients arrive contaminated, taint the work environment, or introduce pests and chemical hazards into the kitchen. Storing foods in open containers increases exposure to dust, pests, and environmental contaminants, so it raises contamination risk. Relying on untrained staff heightens the probability of poor hygiene and cross-contamination during preparation. Cooking to safe temperatures is crucial for killing many pathogens, but it doesn't prevent contamination from occurring in the first place, and some toxins may not be destroyed by heat. Therefore, purchasing from approved suppliers is the best measure.