Principle 4: Establish a Monitoring System
Monitoring is a planned sequence of measurements or observations at critical control points to ensure that the critical limits are continuously achieved.
How is this stage achieved?
- Nature of monitoring: Monitoring can be made by taking appropriate measurements or by making observations. For example temperature measurement or observation of colour change in a food.
- Method of monitoring: Monitoring procedures may involve either in-line or off-line systems.
- In-line systems involve the taking of measurements during the process and may be either continuous, such as using an in-line thermometer or non-continuous for example by inserting a temperature probe into food.
- Off-line systems may involve the taking of samples for rapid testing for example to determine pH or Aw using calibrated meters.
- All monitoring equipment must be calibrated and working correctly.
- Frequency of monitoring: The frequency of monitoring will depend on a number of factors:
- Nature of the product. The frequency of monitoring may be reduced if the products are all of a uniform size.
- Nature of the process for example monitoring may be reduced for automated processes compared with manual ones.
- Nature of production Monitoring may be carried out per batch and hence the size and number of batches produced during a day may influence the frequency of monitoring.
- History of previous checks: Once an initial frequency of monitoring is established it will be possible to either increase or reduce down the frequency depending on the results obtained.
1. What monitoring activities are going to take place at this CCP?
2. Specify how frequently the monitoring activities are to be carried out
3. Define how the monitoring activities are carried out
4. Who is responsible for monitoring actions at this CCP?
5. Please state the name and job title of the deputy, if applicable
6. Where are the results of monitoring recorded?
7. Will the monitoring records be checked and signed off by anyone?
Documentation and records
A review of this principle should be scheduled and triggered if there are changes within the business, as outlined in Principle 6.