Which scenario best illustrates cross-contamination?

Which scenario best illustrates cross-contamination?

• A. A chef uses a cutting board for raw chicken and then uses the same board for lettuce without washing
• B. Washing hands before handling food
• C. Using separate cutting boards for different foods
• D. Storing foods at proper temperatures

Answer: (A)

Cross-contamination happens when bacteria or other pathogens move from one surface or food to another, often through shared utensils or surfaces. In this scenario, using the same cutting board for raw chicken and then cutting lettuce on it without washing allows bacteria from the raw poultry to transfer to the produce. That direct transfer is exactly how cross-contamination occurs, and it creates a risk for anyone who eats the lettuce. Washing hands before handling food helps prevent spreading germs, using separate cutting boards for different foods is a preventive step to avoid transfer, and storing foods at proper temperatures slows bacterial growth. These are all ways to reduce or prevent contamination, whereas the described situation shows the transfer happening via a shared surface.

Cross-contamination happens when bacteria or other pathogens move from one surface or food to another, often through shared utensils or surfaces. In this scenario, using the same cutting board for raw chicken and then cutting lettuce on it without washing allows bacteria from the raw poultry to transfer to the produce. That direct transfer is exactly how cross-contamination occurs, and it creates a risk for anyone who eats the lettuce.

Washing hands before handling food helps prevent spreading germs, using separate cutting boards for different foods is a preventive step to avoid transfer, and storing foods at proper temperatures slows bacterial growth. These are all ways to reduce or prevent contamination, whereas the described situation shows the transfer happening via a shared surface.