Food Safety Cross-Contamination Prevention 2 — Questions and Answers
Question 1: What is the primary purpose of using separate cutting boards for different types of food?
- To organize the kitchen workflow
- To prevent pathogen transfer between different food types (Correct answer)
- To make post-service cleaning easier
- To comply with color-trend guidelines
Correct answer: To prevent pathogen transfer between different food types
Separate cutting boards prevent pathogens from raw foods from transferring to ready-to-eat or already-cooked foods.
Question 2: Which storage practice helps prevent contamination in dry storage areas?
- Storing food directly on the floor for easy access
- Keeping food in original packaging only
- Storing food at least 6 inches off the floor (Correct answer)
- Keeping dry and wet goods on the same shelves
Correct answer: Storing food at least 6 inches off the floor
Food must be stored at least 6 inches off the floor to protect it from floor-level pests, moisture, and cleaning chemical splash.
Question 3: What is the correct procedure when a cook drops a utensil on the floor?
- Rinse it quickly under hot water and reuse it
- Wash, rinse, and sanitize it before reuse (Correct answer)
- Replace it only if it is visibly dirty
- Wipe it with a sanitizer-soaked cloth and reuse it
Correct answer: Wash, rinse, and sanitize it before reuse
Any utensil that contacts the floor must be fully washed, rinsed, and sanitized before being used with food again.
Question 4: How should raw fish be stored relative to raw ground beef in a refrigerator?
- Above the ground beef (Correct answer)
- Below the ground beef
- On the same shelf in sealed containers
- In the door compartment
Correct answer: Above the ground beef
Raw fish (minimum cooking temp 145°F) should be stored above raw ground beef (minimum 155°F), organized by ascending cooking temperature from top to bottom.
Question 5: Which practice is a common cause of cross-contamination in food service?
- Using color-coded cutting boards consistently
- Using the same knife on raw meat and then on salad without washing (Correct answer)
- Storing raw meat below ready-to-eat food
- Checking food temperatures every 2 hours
Correct answer: Using the same knife on raw meat and then on salad without washing
Using the same knife on raw meat and then directly on salad without washing and sanitizing transfers harmful pathogens to ready-to-eat food.
Question 6: What does 'time as a public health control' mean in food service?
- Food is marked with a discard time and discarded after 4 hours from temperature control removal (Correct answer)
- Temperature checks replace the need for thermometers during busy service
- Food is only served at scheduled meal times to limit exposure
- Temperature logs are kept for public inspection at all times
Correct answer: Food is marked with a discard time and discarded after 4 hours from temperature control removal
When using time as a public health control, food is labeled with a discard time (maximum 4 hours) and thrown out at that time regardless of appearance.
Food Safety Cross-Contamination Prevention 2
What is the primary purpose of using separate cutting boards for different types of food?