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Hazard Analysis and Critical Control Points (HACCP)

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Food facilities commonly implement the seven principles of Hazard Analysis and Critical Control Points, or HACCP, a preventive approach outlined by the Codex Alimentarius.

These ensure the biological, chemical, and physical safety of food.

First, a comprehensive hazard analysis is conducted. For example, potential risks such as contamination by Salmonella spp. are identified in a meat processing facility.

Next, the critical control points, or CCPs, are identified—such as chilling meat to limit microbial growth or using metal detectors to detect metal fragments.

Each CCP needs critical limits. For example, the internal meat temperatures should fall below 5°C within 6 hours post-slaughter.

These CCP limits are monitored in real time by calibrated sensors.

Any deviations trigger corrective actions like batch isolation, root cause analysis, and documentation.

Routine checks with microbial swabs, hygiene assessments, and quality audits verify the effectiveness of these measures.

Finally, meticulous documentation ensures traceability, compliance, and food safety.

Overview

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Hazard Analysis and Critical Control Points (HACCP) is a science-based, preventive system used globally to ensure food safety by identifying, evaluating, and controlling biological, chemical, and physical hazards throughout food production. Originally developed by NASA and the Pillsbury Company for astronaut food, HACCP is now a core component of the Codex Alimentarius.

HACCP operates on prerequisite programs—such as Good Manufacturing Practices (GMPs), sanitation procedures, and supplier controls—which create the hygienic foundation necessary for hazard-focused process control. Before applying HACCP principles, manufacturers develop and verify a process flow diagram to map each production step.

Principle 1: Conduct a Hazard Analysis
Potential hazards are identified at each step and categorized as biological (e.g., Salmonella, Listeria), chemical (e.g., allergens, pesticide residues), or physical (e.g., metal or glass fragments). Each hazard is evaluated for likelihood and severity, and control measures are determined.

Principle 2: Identify Critical Control Points (CCPs)
CCPs are steps where control measures can prevent, eliminate, or reduce hazards to acceptable levels, such as thermal processing to kill pathogens.

Principle 3: Establish Critical Limits
Each CCP requires scientifically validated limits—such as minimum cooking temperatures or maximum pH values—that separate safe from unsafe conditions.

Principle 4: Establish Monitoring Procedures
Monitoring includes scheduled measurements or observations to verify that critical limits are consistently met, enabling quick detection of deviations.

Principle 5: Establish Corrective Actions
When a deviation occurs, predetermined actions restore control and prevent unsafe products from reaching consumers.

Principle 6: Establish Verification Procedures
Verification—through audits, microbial testing, or equipment calibration—ensures the HACCP system is functioning effectively.

Principle 7: Establish Record-Keeping and Documentation Comprehensive documentation of hazard analyses, monitoring, corrective actions, and verification results ensures traceability and regulatory compliance.

Transcript

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Hazard Analysis

Critical Control Points

Biological Hazards

Chemical Hazards

Physical Hazards

Prerequisite Programs

Process Flow Diagram

Monitoring Procedures

Corrective Actions