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HACCP
PRINCIPLE #6: Establish verification
procedures.
Verification is defined as those activities, other
than monitoring, that determine the validity of the HACCP plan and
that the system is operating according to the plan. The NAS (1985)
pointed out that the major infusion of science in a HACCP system
centers on proper identification of the hazards, critical control
points, critical limits, and instituting proper verification procedures.
These processes should take place during the development and implementation
of the HACCP plans and maintenance of the HACCP system.
One aspect of verification is evaluating whether the
facility's HACCP system is functioning according to the HACCP plan.
An effective HACCP system requires little end-product testing, since
sufficient validated safeguards are built in early in the process.
Therefore, rather than relying on end-product testing, firms should
rely on frequent reviews of their HACCP plan, verification that
the HACCP plan is being correctly followed, and review of CCP monitoring
and corrective action records.
Another important aspect of verification is the initial
validation of the HACCP plan to determine that the plan is scientifically
and technically sound, that all hazards have been identified and
that if the HACCP plan is properly implemented these hazards will
be effectively controlled. Information needed to validate the HACCP
plan often include (1) expert advice and scientific studies and
(2) in-plant observations, measurements, and evaluations. For example,
validation of the cooking process for beef patties should include
the scientific justification of the heating times and temperatures
needed to obtain an appropriate destruction of pathogenic microorganisms
(i.e., enteric pathogens) and studies to confirm that the conditions
of cooking will deliver the required time and temperature to each
beef patty.
Subsequent validations are performed and documented
by a HACCP team or an independent expert as needed. For example,
validations are conducted when there is an unexplained system failure;
a significant product, process or packaging change occurs; or new
hazards are recognized.
In addition, a periodic comprehensive verification
of the HACCP system should be conducted by an unbiased, independent
authority. Such authorities can be internal or external to the food
operation. This should include a technical evaluation of the hazard
analysis and each element of the HACCP plan as well as on-site review
of all flow diagrams and appropriate records from operation of the
plan. A comprehensive verification is independent of other verification
procedures and must be performed to ensure that the HACCP plan is
resulting in the control of the hazards. If the results of the comprehensive
verification identifies deficiencies, the HACCP team modifies the
HACCP plan as necessary.
Source: FDA and National Advisory Committee on Microbiological
Criteria for Foods (NACMCF)
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