HACCP Hazard Identification & Risk Assessment 3 — Questions and Answers
Question 1: A HACCP team is evaluating risk for Listeria monocytogenes in a ready-to-eat deli product. Which combination correctly describes its risk profile?
- Low severity, high likelihood
- High severity, high likelihood (Correct answer)
- Low severity, low likelihood
- Moderate severity, zero likelihood
Correct answer: High severity, high likelihood
Listeria monocytogenes has high severity (high mortality in vulnerable populations) and is frequently associated with RTE deli environments.
Question 2: What does a 'prerequisite program' (PRP) address in relation to hazard analysis?
- Only critical control points identified in the HACCP plan
- Hazards that are not significant enough to require a CCP but still need control (Correct answer)
- Allergen cross-contact only
- Microbiological testing schedules
Correct answer: Hazards that are not significant enough to require a CCP but still need control
PRPs such as GMP, sanitation, and pest control manage hazards that are present but not determined to be significant enough to warrant a dedicated CCP.
Question 3: When a HACCP team considers the 'intended use' of a product, why is this critical for hazard identification?
- It determines the price point for the product
- Vulnerable populations such as infants or immunocompromised individuals change the significance of certain hazards (Correct answer)
- It sets the expiration date for labeling purposes
- It affects only the packaging design, not food safety
Correct answer: Vulnerable populations such as infants or immunocompromised individuals change the significance of certain hazards
Knowing who will consume the product — including vulnerable groups — raises or lowers the significance of hazards because health consequences vary by consumer.
Question 4: Pesticide residues found above regulatory limits on fresh produce represent which category of HACCP hazard?
- Physical
- Biological
- Chemical (Correct answer)
- Radiological
Correct answer: Chemical
Pesticide residues are chemical contaminants and are classified as chemical hazards in HACCP hazard analysis.
Question 5: Which analytical technique helps a HACCP team determine whether a hazard 'reasonably likely to occur' by reviewing historical food safety data?
- Sensory evaluation panels
- Review of epidemiological data, illness reports, and scientific literature (Correct answer)
- Consumer satisfaction surveys
- Cost-benefit financial analysis
Correct answer: Review of epidemiological data, illness reports, and scientific literature
Epidemiological data and outbreak records provide evidence-based justification for determining which hazards are reasonably likely to occur.
Question 6: A facility processes both peanut-containing and peanut-free products on shared equipment. What type of hazard must be addressed?
- Physical contamination from equipment wear
- Allergen cross-contact as a chemical hazard (Correct answer)
- Microbial cross-contamination from environmental pathogens
- Radiological hazard from equipment emissions
Correct answer: Allergen cross-contact as a chemical hazard
Allergen cross-contact from shared equipment is a chemical hazard requiring dedicated controls such as allergen cleaning validation.
Question 7: In HACCP hazard analysis, what term describes the combination of the probability that a hazard will occur and the severity of its consequences?
- Critical limit
- Risk (Correct answer)
- Deviation
- Corrective action
Correct answer: Risk
Risk in HACCP is the function of both the likelihood (probability) of a hazard occurring and the severity of the harm it causes.
HACCP Hazard Identification & Risk Assessment 3
A HACCP team is evaluating risk for Listeria monocytogenes in a ready-to-eat deli product.
Which combination correctly describes its risk profile?