Verification & Validation of HACCP Systems Flashcards
7 cards from real CHA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Verification & Validation of HACCP Systems flashcards as text
Which type of validation evidence is considered LEAST robust for a new thermal process CCP?
Answer: Anecdotal reports from similar facilities without supporting data
Anecdotal reports without supporting scientific data are considered the weakest form of validation evidence and are not acceptable for establishing a critical limit.
A HACCP plan includes a corrective action stating 'retrain employee' as the sole response to a CCP deviation. Why is this insufficient?
Answer: It does not address disposition of the potentially affected product or the root cause of the deviation
A complete corrective action must address product disposition, identify and eliminate the root cause, and prevent recurrence — not just retrain personnel.
Environmental monitoring for Listeria spp. in a ready-to-eat production area is BEST categorized as which HACCP activity?
Answer: Prerequisite program verification
Environmental monitoring programs for Listeria in RTE areas are typically prerequisite program verification activities rather than CCP monitoring.
When validating a water activity critical limit, which analytical method is considered the reference standard?
Answer: Chilled mirror dew point hygrometry
Chilled mirror dew point hygrometry is the reference (primary) method for measuring water activity due to its accuracy and precision.
A food safety auditor is reviewing finished product microbiological testing records used as a verification tool. The auditor notes testing is done on 1% of production lots. What limitation should be documented?
Answer: Low sampling rates limit the statistical confidence that all lots meet specifications, making it an incomplete stand-alone verification
End-product microbiological testing at low sampling rates has limited statistical power and cannot alone confirm that every lot is safe, making it an incomplete verification tool.
A HACCP validation for a high-pressure processing (HPP) step should demonstrate control of which primary target pathogen in juice products per FDA 21 CFR Part 120?
Answer: The most resistant pathogen of public health significance, typically resulting in a 5-log reduction
21 CFR Part 120 requires juice HACCP plans to demonstrate a 5-log reduction of the most resistant pathogen of public health significance for that product.
Which item below is NOT typically included in a HACCP system verification audit checklist?
Answer: Assessment of employee personal hygiene practices unrelated to identified hazards
While personal hygiene is important, assessing practices unrelated to the identified hazards goes beyond the scope of a HACCP system verification audit focused on the HACCP plan.