Monitoring Frequency

Monitoring frequency is how often a food business performs and records a specific check or measurement. In food safety, the frequency should be based on the hazard being controlled, the process, regulatory requirements, equipment performance and the food-safety plan. Some checks are required for every batch or production run, while others may be scheduled at defined intervals.

What determines monitoring frequency?

• Hazard severity: controls for hazards that could cause serious illness may require more frequent or continuous monitoring.
• Process variability: equipment or processes that fluctuate more may need closer observation.
• Regulatory requirements: applicable rules may specify the frequency or method of a check.
• Critical control point: a HACCP plan defines monitoring procedures and frequency for each CCP.
• Historical performance: recurring deviations may justify more frequent checks or additional controls.
• Measurement capability: the method must provide timely information so staff can take corrective action before unsafe product is released.

Examples in a restaurant

A cooking process may require an internal temperature check for every batch. A refrigeration unit may be monitored continuously or checked at the intervals specified by the food-safety plan. Sanitizer concentration may be checked when a solution is prepared and again at the frequency required by the procedure and product instructions.

Monitoring frequency versus verification frequency

Monitoring checks whether a control is operating as intended. Verification confirms that the monitoring and control system is being carried out and is effective. Verification may involve record review, observation, calibration or other checks at a different frequency.

Chef’s tip: do not choose a monitoring schedule simply because it is easy to remember. Set the frequency from the hazard analysis and approved procedure, then make sure staff can respond promptly to a deviation.