FOODSAFE Cross-Contamination Prevention 3 — Questions and Answers
Question 1: How should a food handler manage allergen cross-contact in the kitchen?
- Allergens cannot be transferred through contact
- Use separate utensils, clean and sanitize surfaces, and prepare allergen-free orders first or in a designated area (Correct answer)
- Simply remove the visible allergen from the dish
- Tell the customer to take medication before eating
Correct answer: Use separate utensils, clean and sanitize surfaces, and prepare allergen-free orders first or in a designated area
Allergen cross-contact can cause severe reactions even from trace amounts. Using separate utensils, thoroughly cleaning surfaces, and preparing allergen-free orders with dedicated equipment prevents cross-contact with allergenic proteins.
Question 2: Which of the following is an example of cross-contamination through a food handler?
- Contaminated water entering a food supply
- A cook handles raw fish, does not wash hands, and then plates a cooked steak (Correct answer)
- A supplier delivers contaminated food
- Pest droppings falling into stored grain
Correct answer: A cook handles raw fish, does not wash hands, and then plates a cooked steak
The cook's unwashed hands transfer bacteria from raw fish directly to the cooked steak. This is handler-mediated cross-contamination — one of the most common types in food service operations.
Question 3: What is the best practice for handling produce that will be eaten raw?
- No special handling is required for raw produce
- Wash thoroughly under running water, use separate cutting boards designated for produce, and store away from raw meats (Correct answer)
- Soak in bleach solution for 10 minutes
- Peel all produce before serving
Correct answer: Wash thoroughly under running water, use separate cutting boards designated for produce, and store away from raw meats
Raw produce must be thoroughly washed under running water to remove soil, bacteria, and pesticide residues. Using designated cutting boards prevents cross-contamination from raw meats, and proper storage keeps it safe.
Question 4: Why should food handlers avoid preparing food for others if they have an infected wound on their hands?
- Infected wounds are not contagious
- Infected wounds contain high concentrations of Staphylococcus aureus, which can contaminate food and cause staphylococcal food poisoning (Correct answer)
- Only because it looks unappetizing
- Wound infections only affect the handler, not the food
Correct answer: Infected wounds contain high concentrations of Staphylococcus aureus, which can contaminate food and cause staphylococcal food poisoning
Infected wounds, especially those with pus, contain extremely high concentrations of Staphylococcus aureus. If these bacteria enter food, they can produce heat-stable toxins that cause food poisoning even after cooking.
Question 5: When using a food processor to prepare different types of food, what must be done between batches?
- Wipe the bowl with a dry cloth
- Completely disassemble, wash, rinse, and sanitize all parts before processing a different food type (Correct answer)
- Run the processor empty for 30 seconds to clear residue
- Switch to a different speed setting
Correct answer: Completely disassemble, wash, rinse, and sanitize all parts before processing a different food type
Food processors have multiple parts that trap food residue and bacteria. Complete disassembly, washing, rinsing, and sanitizing between different food types prevents cross-contamination, especially when switching between raw and ready-to-eat foods.
Question 6: How does the 'flow of food' concept help prevent cross-contamination in a kitchen?
- It determines the order in which menu items are served
- It organizes the physical layout and workflow so that raw and ready-to-eat foods move through separate paths, preventing contact between them (Correct answer)
- It refers to the speed at which food is prepared
- It only applies to buffet service
Correct answer: It organizes the physical layout and workflow so that raw and ready-to-eat foods move through separate paths, preventing contact between them
The flow of food concept designs kitchen workflow so raw and cooked/ready-to-eat foods follow separate paths from receiving to service. This prevents cross-contamination by minimizing opportunities for contact between them.
FOODSAFE Cross-Contamination Prevention 3
How should a food handler manage allergen cross-contact in the kitchen?