Food safety, hygiene and HACCP in Western kitchens
Scope
This domain tests how a Western kitchen-restaurant, central production unit or ready-meal line-builds and runs a HACCP-based food safety system. Expect questions on hazard analysis, CCP decisions, critical limits, monitoring records, corrective actions, verification and the hygiene prerequisites that sit underneath the plan.
Core rules
- HACCP has seven principles: hazard analysis; determine CCPs; set critical limits; monitor; corrective action; verify; document.
- A CCP is a step where a measurable control is essential to prevent, eliminate or reduce a significant hazard to an acceptable level. Allergen control is normally managed through prerequisite programmes and labelling controls, not as a traditional CCP.
- Critical limits must be measurable: core temperature 75 °C, pH ≤4.6, aw ≤0.85, chilled storage ≤5 °C.
- Monitoring frequency must be sufficient to detect loss of control; continuous temperature logging is stronger than one end-of-shift probe.
- Corrective action must cover product disposition, root cause and record.
Worked example
A cook-chill line produces roast chicken breast. Hazard: Salmonella. CCP: cooking. Critical limit: core temperature 75 °C for at least 30 seconds. Monitoring: calibrated probe in the thickest portion of every batch, logged. A batch reads 68 °C. Corrective action: return to oven and re-probe; if still below limit, hold product, extend cooking, re-test; record deviation, batch ID, action and verification. Do not treat the reading as a "close enough" pass.
Traps
- Confusing validation (evidence the limit works) with verification (checking the system works).
- Making allergens a CCP without a measurable critical limit.
- Recording only the final temperature and not the time at temperature.
- Assuming a calibrated probe stays calibrated.