CFSP Food Safety Management 5 — Questions and Answers
Question 1: Which water activity (aw) level is generally required to prevent the growth of most foodborne bacterial pathogens?
- Below 0.99
- Below 0.97
- Below 0.91 (Correct answer)
- Below 0.85
Correct answer: Below 0.91
Most bacterial pathogens cannot grow when water activity falls below 0.91, which is why reducing moisture is an effective preservation strategy.
Question 2: A foodservice operation serves sushi containing raw tuna. To reduce the risk of parasites, the fish must have been:
- Marinated in lemon juice for at least 30 minutes
- Previously frozen at -4°F (-20°C) for 7 days or -31°F (-35°C) for 15 hours (Correct answer)
- Purchased from a certified organic supplier
- Inspected visually for visible parasites before service
Correct answer: Previously frozen at -4°F (-20°C) for 7 days or -31°F (-35°C) for 15 hours
Parasite destruction in fish intended for raw consumption requires specific freezing protocols that kill anisakid worms and other parasites.
Question 3: What is the purpose of a prerequisite program in a food safety management system?
- To replace the need for a HACCP plan
- To provide foundational sanitation and operational conditions that support HACCP (Correct answer)
- To document corrective actions taken at CCPs
- To train new employees on food handling procedures only
Correct answer: To provide foundational sanitation and operational conditions that support HACCP
Prerequisite programs (e.g., cleaning, pest control, personal hygiene) create baseline conditions that make the HACCP plan effective.
Question 4: Which condition is required for Clostridium botulinum to produce its deadly neurotoxin?
- High oxygen, low acid, warm temperature
- Low oxygen (anaerobic), low acid, moist environment (Correct answer)
- High oxygen, high acid, refrigerated temperature
- Low oxygen, high acid, dry environment
Correct answer: Low oxygen (anaerobic), low acid, moist environment
C. botulinum produces toxin only in anaerobic (oxygen-free), low-acid, moist environments—classic conditions in improperly processed canned or vacuum-packed foods.
Question 5: During a health inspection, an inspector finds sanitizer solution in a spray bottle testing at 10 ppm chlorine. The required level is 50–100 ppm. The BEST immediate action is to:
- Continue using it and make a new batch tomorrow
- Test again with a different test strip
- Discard the solution and prepare a fresh batch at the correct concentration (Correct answer)
- Add more sanitizer concentrate to the existing bottle
Correct answer: Discard the solution and prepare a fresh batch at the correct concentration
A sanitizer below the required concentration will not effectively kill pathogens; the only safe action is to discard and prepare a fresh, properly measured solution.
Question 6: Which CFSP-recognized Big 8 allergen accounts for the highest percentage of fatal anaphylaxis cases in the United States?
- Milk
- Tree nuts
- Peanuts (Correct answer)
- Shellfish
Correct answer: Peanuts
Peanuts are responsible for the majority of fatal and near-fatal anaphylactic reactions in the US, making peanut allergen control a top priority.
Question 7: A manager implements a new policy requiring staff to use separate fryers for items containing gluten and items marketed as gluten-free. This is an example of controlling:
- Cross-contamination
- Cross-contact (Correct answer)
- Biological hazard
- Chemical hazard
Correct answer: Cross-contact
Cross-contact occurs when an allergen is inadvertently transferred to a food not intended to contain it; shared fryer oil can transfer gluten proteins.
CFSP Food Safety Management 5
Which water activity (aw) level is generally required to prevent the growth of most foodborne bacterial pathogens?