CFPM Preventing Food Contamination 4 — Questions and Answers
Question 1: What is the MAIN reason food handlers should avoid bare-hand contact with ready-to-eat foods?
- Hands carry pathogens that can transfer directly to food that will not be cooked further (Correct answer)
- Bare hands are less efficient than gloves for portioning food
- Health codes require gloves for all food handling tasks
- Ready-to-eat foods are more expensive and must be handled carefully
Correct answer: Hands carry pathogens that can transfer directly to food that will not be cooked further
Ready-to-eat foods receive no further kill step, so any pathogens transferred from bare hands will remain in the food when it is consumed.
Question 2: A food worker develops vomiting and diarrhea at the start of their shift. The manager should:
- Send the worker home and restrict them from food handling until symptom-free (Correct answer)
- Allow the worker to handle only packaged foods to minimize risk
- Have the worker wear gloves and a mask while continuing to work
- Require the worker to wash hands more frequently during the shift
Correct answer: Send the worker home and restrict them from food handling until symptom-free
Vomiting and diarrhea are reportable symptoms under the FDA Food Code; affected employees must be excluded from food handling duties.
Question 3: Which is the CORRECT order for storing raw proteins in a walk-in refrigerator from top to bottom?
- Ready-to-eat foods, seafood, whole cuts of beef, ground beef, poultry (Correct answer)
- Poultry, ground beef, whole cuts of beef, seafood, ready-to-eat foods
- Seafood, ground beef, poultry, ready-to-eat foods, whole cuts of beef
- Ground beef, poultry, ready-to-eat foods, seafood, whole cuts of beef
Correct answer: Ready-to-eat foods, seafood, whole cuts of beef, ground beef, poultry
Items are stored by minimum internal cooking temperature, with highest-risk/highest-temp items (poultry) on the bottom and ready-to-eat foods on top.
Question 4: Ice used to keep food cold at a salad bar becomes contaminated when:
- Customers allow food juices or food particles to drip into the ice (Correct answer)
- Ice is made from potable water and stored in a clean bin
- Ice is replaced every four hours during service
- The salad bar is maintained at 41°F or below
Correct answer: Customers allow food juices or food particles to drip into the ice
Food particles or juices dripping into display ice can harbor pathogens and contaminate other foods cooled by that ice.
Question 5: A sanitizer solution is prepared but used at a concentration far above the manufacturer's recommended level. This creates which type of hazard?
- Chemical hazard from sanitizer residue on food-contact surfaces (Correct answer)
- Biological hazard from insufficient microbial kill
- Physical hazard from sanitizer particles in food
- No hazard because stronger concentration is always safer
Correct answer: Chemical hazard from sanitizer residue on food-contact surfaces
Excess sanitizer residue left on food-contact surfaces can transfer toxic chemicals to food, creating a chemical contamination hazard.
Question 6: Which action by a food delivery driver BEST prevents contamination during transport?
- Keeping raw meats in separate, sealed containers away from ready-to-eat items (Correct answer)
- Packing all food items together to maximize delivery efficiency
- Turning off the refrigeration unit to save fuel on short trips
- Accepting returns of partially consumed food for redistribution
Correct answer: Keeping raw meats in separate, sealed containers away from ready-to-eat items
Separating raw meats from ready-to-eat items in sealed containers during transport prevents cross-contamination throughout the delivery chain.
Question 7: Linens and cloth towels used to wipe food-contact surfaces can cause contamination because:
- They harbor bacteria and can spread pathogens across multiple surfaces (Correct answer)
- They are too abrasive and may scratch food-contact surfaces
- They leave lint that qualifies as physical contamination
- Health codes prohibit the use of any textile materials in kitchens
Correct answer: They harbor bacteria and can spread pathogens across multiple surfaces
Cloth wiping towels accumulate bacteria rapidly and spread them across surfaces unless stored in sanitizer solution between uses.
What is the MAIN reason food handlers should avoid bare-hand contact with ready-to-eat foods?