Principle 4

Monitoring is the scheduled measurement or observation of a CCP relative to its critical limits. The monitoring procedures must be able to detect loss of control at the CCP and provide this information in time to make adjustments before the product is used or consumed.

Continuous monitoring is preferred where possible. When monitoring is not continuous, the frequency must be sufficient to guarantee the CCP is in control. Most monitoring procedures need to be rapid because they relate to in-line processes and there is no time for lengthy analytical testing.

All records and documents associated with monitoring CCPs must be signed by the person doing the monitoring and by a responsible reviewing official.