HACCP common mistakes
HACCP · Understand the traps and how to avoid them.
Writes CCPs for employee hygiene, pest control, or supplier approval instead of treating them as prerequisite programs, then argues that HACCP alone makes the food safe.
Candidates overfocus on CCPs and assume every control must be a CCP, so they miss the foundation that PRPs manage broadly distributed hazards and keep the HACCP plan focused on process-specific significant hazards.
What to do instead
Separate PRPs from CCPs explicitly: identify the GMP/SSOP procedure that controls each broad hazard, provide its record, and reserve CCP status for a step where a significant hazard is controlled by a measurable critical limit and no later step reliably controls it.
Describes prerequisite programs only as 'GMPs are in place' without naming the specific program, its scope, and the verification record that supports it.
Generic answers feel sufficient because PRPs are familiar, but exam items test whether the candidate can connect a named PRP to the hazard it prevents, eliminates, or reduces.
What to do instead
For each relevant PRP, state the program name, what hazard category it addresses, the procedure that implements it, and the record or verification activity that demonstrates it is working.
Classifies nearly every identified hazard as a CCP without documenting why earlier PRPs or later process steps are insufficient.
Candidates use CCPs as a default answer because they equate 'important hazard' with 'critical control point' and skip the hazard-analysis reasoning that justifies control at a specific step.
What to do instead
Apply a decision-tree or equivalent logic step by step: state the hazard, the step where control can be applied, whether a PRP already controls it, whether a later step controls it, and only then assign CCP status with a stated rationale.
Lists only biological hazards for a product or process and omits chemical, physical, and allergen hazards introduced by ingredients, packaging, maintenance, or process steps.
Candidates anchor on the most familiar hazard category and treat hazard identification as a short brainstorming list rather than a systematic review of each ingredient and process step.
What to do instead
Build a hazard-identification matrix by ingredient and by process step, and for each row consider biological, chemical, physical, and allergen hazards using product information, process flow, and documented sources.
Sets a critical limit as a subjective statement such as 'cook thoroughly,' 'clean equipment,' or 'sanitary condition' rather than a measurable limit at the CCP.
Candidates confuse a critical limit with a procedure or good practice, and they may not have practiced converting a hazard-control requirement into an objective parameter, time, temperature, or tolerance.
What to do instead
Write each critical limit as a measurable value with units and basis, such as a minimum internal temperature and holding time, and confirm that the limit is measured at the named CCP and is supported by validation evidence.
Assigns a CCP to a step that cannot actually control the hazard, such as making finished-product testing or packaging the CCP for a pathogen that is not reduced at that step.
Candidates try to place a CCP near the end of the process or where testing already occurs, rather than identifying the step where the hazard can be prevented, eliminated, or reduced to an acceptable level.
What to do instead
Map each significant hazard to the earliest step where a control can be applied, verify that the step can achieve the needed effect, and if no such step exists, recommend a process or product change instead of forcing a CCP.
Writes monitoring instructions as 'check temperature regularly' without specifying the method, frequency, responsible person, sample location, or what constitutes a passing result.
Candidates treat monitoring as a general operating instruction and underestimate the level of specificity needed for another employee to execute it consistently and for an auditor to verify it.
What to do instead
Define monitoring with the exact method and instrument, measurement location, frequency, responsible role, acceptance criterion, and record field for the actual result, not just a check mark.
States a corrective action only as 'discard the product' and omits segregation, disposition of affected product, root-cause correction, restoration of control, and verification of effectiveness.
Candidates focus on the immediate product decision and forget that a corrective action must also address the deviation, the cause, and prevention of recurrence.
What to do instead
Use a corrective-action sequence: stop and segregate affected product, determine its disposition, correct the immediate cause, restore control, record the root cause and preventive action, and verify that the CCP is back in control.
Uses 'verification' and 'validation' interchangeably, calling daily CCP checks validation or calling the initial scientific justification verification.
The terms sound similar and both involve checking, so candidates substitute one for the other instead of remembering that validation establishes the adequacy of the control design and verification confirms ongoing implementation and effectiveness.
What to do instead
Define validation as evidence gathered before or during implementation that the critical limit achieves the intended hazard reduction, and verification as ongoing activities such as record review, calibration checks, and CCP monitoring audits that confirm the plan is being followed and works.
Designs records that omit the actual observed value, time, CCP identity, operator signature, or corrective-action link, and then treats a completed form as sufficient documentation.
Candidates treat recordkeeping as an administrative afterthought and may copy a blank template without checking whether the record can reconstruct what happened at the CCP.
What to do instead
Design each record around the CCP decision: capture the measured value, unit, time, CCP/step, operator, result against the critical limit, any deviation and corrective action, reviewer signature, and retention period.