HACCP Principles & Critical Control Points
What you'll learn: what HACCP stands for and why every federally inspected meat plant uses it, the 7 HACCP principles applied to chicken processing, what a CCP looks like on the production floor, prerequisite programs, and why HACCP knowledge makes you more promotable.
HACCP is the system that runs every federally registered meat plant in Canada. If you work in meat processing, HACCP is the framework your entire operation is built around — whether you realize it or not.
What HACCP Stands For
Hazard Analysis Critical Control Point. A systematic, science-based approach to food safety that identifies where things can go wrong and puts controls in place to prevent it. Originally developed in the 1960s by NASA and Pillsbury for space food safety. Today it is the international standard. CFIA requires it in all federally registered establishments. OMAFRA requires food safety plans based on HACCP principles in all provincially licensed meat plants.
The 7 HACCP Principles
Every HACCP plan is built on these seven principles. Learn them in order — the exam expects you to know the sequence and what each principle means.
Principle 1: Conduct a Hazard Analysis
Look at every step of production and ask: what can go wrong? Identify all biological, chemical, and physical hazards. In chicken processing: receiving risks temperature abuse, grinding distributes bacteria, packaging risks recontamination.
Principle 2: Identify Critical Control Points (CCPs)
A CCP is a step where you can prevent, eliminate, or reduce a hazard to an acceptable level. Not every step is a CCP. If control fails at a CCP, unsafe product reaches the consumer.
Chicken processing CCPs:
- Receiving — temperature verification prevents accepting temperature-abused product
- Cooking — reaching 74C kills Salmonella and Campylobacter in chicken pieces
- Cooling — proper cooling prevents Clostridium perfringens growth in cooked product
- Metal detection — removes physical hazards (metal fragments from equipment) before packaging
Principle 3: Establish Critical Limits
Each CCP needs a measurable limit — a line in the sand. If the measurement stays within the limit, the hazard is controlled. If it crosses the limit, something went wrong and corrective action is needed.
Critical limits must be specific numbers. "Cook until done" is not a critical limit. "Internal temperature of 74C" is.
Examples:
- Cooking CCP: Ground beef must reach 71C internal; chicken pieces must reach 74C internal
- Cooling CCP: Cooked product must cool from 60C to 20C within 2 hours, then from 20C to 4C within 4 hours
- Receiving CCP: Fresh poultry must arrive at 4C or below
- Metal detection CCP: No metal fragments detected above the established threshold size
Principle 4: Monitor CCPs
Continuous or frequent checks ensure CCPs stay within critical limits. In chicken processing: probe thermometer on every cooking batch, time/temp readings during cooling, temperature check on every delivery, and every unit through the metal detector.
Principle 5: Establish Corrective Actions
What happens when monitoring shows a critical limit has been exceeded? You need a plan — written in advance, not figured out in the moment.
Corrective actions must address three things: (1) the affected product — continue cooking or discard, (2) the cause — oven malfunction, overloading, operator error, and (3) prevention — what changes stop it from happening again. Document everything.
Principle 6: Verification Procedures
Monitoring tells you whether your CCPs are under control right now. Verification tells you whether your entire HACCP system is working as designed over time. These are different activities.
Verification includes internal audits, thermometer calibration, record review, laboratory testing of finished products (Salmonella, Listeria, E. coli), and regulatory inspections by CFIA and OMAFRA.
Principle 7: Record Keeping and Documentation
If it is not documented, it did not happen. That is the rule in HACCP, and it is the rule inspectors operate by.
Every monitoring check, corrective action, verification activity, and calibration must be documented. In a meat plant: temperature logs, cleaning records, corrective action reports, staff training records, supplier certificates, calibration logs, and metal detector test records. All must be available for inspection at any time.
HACCP in Action — A Chicken Processing Flow
Here is how all 7 principles come together on a real production floor:
| Step | Hazard | CCP? | Critical Limit | Monitoring |
|---|---|---|---|---|
| Receiving | Pathogen growth (high temp) | Yes | Raw chicken at 4C or below | Temp check every delivery |
| Cold Storage | Cross-contamination, growth | No (prerequisite) | 4C or below, FIFO | Fridge temp logs 2x daily |
| Grinding | Bacteria distribution | No (controlled at cooking) | N/A | Visual inspection |
| Cooking | Pathogen survival | Yes | 74C for chicken; 71C for ground beef | Probe thermometer, each batch |
| Cooling | C. perfringens growth | Yes | 60C to 20C in 2 hrs; 20C to 4C in 4 hrs | Time/temp monitoring |
| Metal Detection | Physical hazards | Yes | No metal above threshold | Every unit through detector |
| Shipping | Temperature abuse | Yes | 4C or below | Temperature-monitored trucks |
Prerequisite Programs — The Foundation
HACCP does not work in a vacuum. Before a HACCP plan can be effective, these foundational programs must be in place:
- Sanitation Standard Operating Procedures (SSOPs) — cleaning and sanitizing schedules
- Supplier control — approved suppliers, receiving procedures
- Pest management — prevention, monitoring, and extermination programs
- Staff hygiene and training — handwashing, illness reporting, food handler certification
- Equipment maintenance and calibration — preventive maintenance schedules
- Allergen management — separation, labelling, cleaning protocols
- Water safety — testing the plant's water supply
- Waste management — proper disposal of offal, packaging, and wastewater
Why HACCP Knowledge Makes You More Promotable
Most floor workers know their task — cut here, pack there, check this temperature. Understanding HACCP means you know why. Workers who demonstrate HACCP knowledge move into line lead, QA technician, and supervisor roles. The MPO supervisor-level exam tests HACCP in depth — passing it opens doors the worker-level exam does not.
Practice Questions
1. Which of the following is a Critical Control Point (CCP) in chicken processing?
a) Receiving raw chicken into cold storage
b) Grinding chicken for burger patties
c) Cooking chicken to 74C internal temperature
d) Packaging cooked chicken in sealed bags
Answer: c) Cooking is a CCP because it is the step where the biological hazard (Salmonella, Campylobacter) is eliminated by reaching the critical limit of 74C. Grinding is not a CCP because the hazard it creates is controlled at the cooking step. Packaging is controlled by Good Manufacturing Practices, not as a CCP.
2. A food handler records a cooking temperature of 68C for a batch of chicken thighs. What is the correct corrective action?
a) Serve the chicken since 68C is close enough to 74C
b) Continue cooking until the internal temperature reaches 74C, then document the deviation
c) Discard the entire batch immediately with no further action
d) Reduce the batch size and try again with a new batch
Answer: b) Continue cooking until 74C is reached. The product has not been compromised — it simply has not reached the critical limit yet. Document the deviation, investigate the cause (overcrowding, equipment malfunction), and take steps to prevent recurrence. This is Principle 5 in action.
3. "If it isn't documented, it didn't happen" refers to which HACCP principle?
a) Principle 4 — Monitoring
b) Principle 5 — Corrective Actions
c) Principle 6 — Verification
d) Principle 7 — Record Keeping
Answer: d) Principle 7 — Record Keeping and Documentation. All monitoring data, corrective actions, and verification activities must be recorded. Without documentation, there is no proof that the HACCP system is functioning, and regulatory inspectors will treat undocumented checks as if they never occurred.