The National Advisory Committee on Microbiological Criteria for Foods (Committee) reconvened a Hazard Analysis and Critical Control Point (HACCP) Working Group in 1995.
Introduction
HACCP
is a management system in which food safety is addressed through the analysis
and control of biological, chemical, and physical hazards from raw material
production, procurement and handling, to manufacturing, distribution and
consumption of the finished product.
HACCP
is designed for use in all segments of the food industry from growing,
harvesting, processing, manufacturing, distributing, and merchandising to
preparing food for consumption.
Prerequisite Programs
Prerequisite programs provide the basic environmental and operating
conditions that are necessary for the production of safe, wholesome food.
Facilities: The establishment should be located, constructed and
maintained according to sanitary design principles. There should be linear
product flow and traffic control to minimize cross-contamination from raw to
cooked materials.
Supplier Control: Each facility should assure that its suppliers
have in place effective GMP and food safety programs.
Specifications: There should be written specifications for all
ingredients, products, and packaging materials.
Production Equipment: All equipment should be constructed and
installed according to sanitary design principles. Preventive maintenance and
calibration schedules should be established and documented.
Cleaning and Sanitation: All procedures for cleaning and
sanitation of the equipment and the facility should be written and followed. A
master sanitation schedule should be in place.
Personal Hygiene: All employees and other persons who enter the
manufacturing plant should follow the requirements for personal hygiene.
Training: All employees should receive documented training in
personal hygiene, GMP, cleaning and sanitation procedures, personal safety, and
their role in the HACCP program.
Chemical Control: Documented procedures must be in place to
assure the segregation and proper use of non-food chemicals in the plant. These
include cleaning chemicals, fumigants, and pesticides or baits used in or around
the plant.
Receiving, Storage and Shipping: All raw materials and products
should be stored under sanitary conditions and the proper environmental
conditions such as temperature and humidity to assure their safety and
wholesomeness
Traceability and Recall: All raw materials and products should
be lot-coded and a recall system in place so that rapid and complete traces and
recalls can be done when a product retrieval is necessary.
Pest Control: Effective pest control programs should be in
place.
Other examples of prerequisite programs might include quality
assurance procedures; standard operating procedures for sanitation, processes,
product formulations and recipes; glass control; procedures for receiving,
storage and shipping; labelling; and employee food and ingredient handling
practices.
The success of a HACCP system depends on educating and training management and employees in the importance of their role in producing safe foods. This should also include information the control of food borne hazards related to all stages of the food chain. It is important to recognize that employees must first understand what HACCP is and then learn the skills necessary to make it function properly.
In the development of a HACCP plan, five preliminary tasks need to be accomplished before the application of the HACCP principles to a specific product and process.
The five preliminary
tasks are given below
The first task in developing a HACCP plan is to
assemble a HACCP team consisting of individuals who have specific knowledge and
expertise appropriate to the product and process. It is the team's
responsibility to develop the HACCP plan. The team should be multi disciplinary
and include individuals from areas such as engineering, production, sanitation,
quality assurance, and food microbiology. The team should also include local
personnel who are involved in the operation as they are more familiar with the
variability and limitations of the operation. The HACCP team may need
assistance from outside experts who are knowledgeable in the potential
biological, chemical and/or physical hazards associated with the product and
the process.
Describe the food and its
distribution
The HACCP team first describes the food. This
consists of a general description of the food, ingredients, and processing
methods. The method of distribution should be described along with information
on whether the food is to be distributed frozen, refrigerated, or at ambient
temperature.
Describe the normal
expected use of the food. The intended consumers may be the general public or a
particular segment of the population (e.g., infants, immunocompromised
individuals, the elderly, etc.).
Develop a flow diagram
which describes the process
The purpose of a flow
diagram is to provide a clear, simple outline of the steps involved in the
process. In addition, the
flow diagram can include steps in the food chain which are before and after the
processing that occurs in the establishment. The flow diagram need not be as
complex as engineering drawings. A block type flow diagram is sufficiently
descriptive. Also, a simple schematic of the facility is often useful in
understanding and evaluating product and process flow.
Example of a Flow Diagram
for the Production of Frozen Cooked Beef Patties
Verify the flow diagram
The HACCP team should
perform an on-site review of the operation to verify the accuracy and
completeness of the flow diagram. Modifications should be made to the flow
diagram as necessary and documented.
HACCP PRINCIPLES
HACCP
is a systematic approach to the identification, evaluation, and control of food
safety hazards based on the following seven principles:
Principle
1: Conduct a hazard analysis.
Principle
2: Determine the critical control points (CCPs).
Principle
3: Establish critical limits.
Principle
4: Establish monitoring procedures.
Principle
5: Establish corrective actions.
Principle
6: Establish verification procedures.
Principle
7: Establish record-keeping and documentation procedures.
Conduct a hazard analysis (Principle 1)
HACCP
team conducts a hazard analysis and identifies appropriate control measures.
The purpose of the hazard analysis is to develop a list of hazards which are of
such significance that they are reasonably likely to cause injury or illness if
not effectively controlled. It is important to consider in the hazard
analysis the ingredients and raw materials, each step in the process, product
storage and distribution, and final preparation and use by the consumer. When
conducting a hazard analysis, safety concerns must be differentiated from
quality concerns. A hazard is defined as a biological, chemical or physical
agent that is reasonably likely to cause illness or injury in the absence of
its control.
The
process of conducting a hazard analysis involves two stages. The first, hazard
identification. During this stage,
the HACCP team reviews the ingredients used in the product, the activities
conducted at each step in the process and the equipment used, the final product
and its method of storage and distribution, and the intended use and consumers
of the product. Based on this review, the team develops a list of potential
biological, chemical or physical hazards which may be introduced, increased, or
controlled at each step in the production process.
Examples of Questions to be Considered When
Conducting a Hazard Analysis
The
hazard analysis consists of asking a series of questions which are appropriate
to the process under consideration. The purpose of the questions is to assist
in identifying potential hazards.
- Ingredients
- Does
the food contain any sensitive ingredients that may present
microbiological hazards (e.g., Salmonella, Staphylococcus aureus);
chemical hazards (e.g., aflatoxin, antibiotic or pesticide residues); or
physical hazards (stones, glass, metal)?
- Are potable water, ice and steam used in formulating or in
handling the food?
- What are the sources (e.g., geographical region, specific
supplier)
- Intrinsic
Factors - Physical characteristics and composition (e.g., pH, type of
acidulants, fermentable carbohydrate, water activity, preservatives) of
the food during and after processing.
- What
hazards may result if the food composition is not controlled?
- Does the food permit survival or multiplication of pathogens
and/or toxin formation in the food during processing?
- Will the food permit survival or multiplication of pathogens
and/or toxin formation during subsequent steps in the food chain?
- Are there other similar products in the market place? What has
been the safety record for these products? What hazards have been
associated with the products?
- Procedures
used for processing
- Does
the process include a controllable processing step that destroys
pathogens? If so, which pathogens? Consider both vegetative cells and
spores.
- If the product is subject to recontamination between processing
(e.g., cooking, pasteurizing) and packaging which biological, chemical or
physical hazards are likely to occur?
- Microbial
content of the food
- What
is the normal microbial content of the food?
- Does the microbial population change during the normal time the
food is stored prior to consumption?
- Does the subsequent change in microbial population alter the safety
of the food?
- Do the answers to the above questions indicate a high likelihood
of certain biological hazards?
- Facility
design
- Does
the layout of the facility provide an adequate separation of raw
materials from ready-to-eat (RTE) foods if this is important to food
safety? If not, what hazards should be considered as possible
contaminants of the RTE products?
- Is positive air pressure maintained in product packaging areas? Is
this essential for product safety?
- Is the traffic pattern for people and moving equipment a
significant source of contamination?
- Equipment
design and use
- Will
the equipment provide the time-temperature control that is necessary for
safe food?
- Is the equipment properly sized for the volume of food that will
be processed?
- Can the equipment be sufficiently controlled so that the variation
in performance will be within the tolerances required to produce a safe
food?
- Is the equipment reliable or is it prone to frequent breakdowns?
- Is the equipment designed so that it can be easily cleaned and
sanitized?
- Is there a chance for product contamination with hazardous
substances; e.g., glass?
- What product safety devices are used to enhance consumer safety?
- metal
detectors
- magnets
- sifters
- filters
- screens
- thermometers
- bone removal devices
- dud detectors
- To what degree will normal equipment wear affect the likely
occurrence of a physical hazard (e.g., metal) in the product?
- Are allergen protocols needed in using equipment for different
products?
- Packaging
- Does
the method of packaging affect the multiplication of microbial pathogens
and/or the formation of toxins?
- Is the package clearly labelled "Keep Refrigerated" if
this is required for safety?
- Does the package include instructions for the safe handling and
preparation of the food by the end user?
- Is the packaging material resistant to damage thereby preventing
the entrance of microbial contamination?
- Are tamper-evident packaging features used?
- Is each package and case legibly and accurately coded?
- Does each package contain the proper label?
- Are potential allergens in the ingredients included in the list of
ingredients on the label?
- Sanitation
- Can
sanitation have an impact upon the safety of the food that is being
processed?
- Can the facility and equipment be easily cleaned and sanitized to
permit the safe handling of food?
- Is it possible to provide sanitary conditions consistently and
adequately to assure safe foods?
- Employee
health, hygiene and education
- Can
employee health or personal hygiene practices impact upon the safety of
the food being processed?
- Do the employees understand the process and the factors they must
control to assure the preparation of safe foods?
- Will the employees inform management of a problem which could
impact upon safety of food?
- Conditions
of storage between packaging and the end user
- What
is the likelihood that the food will be improperly stored at the wrong
temperature?
- Would an error in improper storage lead to a microbiologically
unsafe food?
- Intended
use
- Will
the food be heated by the consumer?
- Will there likely be leftovers?
- Intended
consumer
- Is the
food intended for the general public?
- Is the food intended for consumption by a population with
increased susceptibility to illness (e.g., infants, the aged, the
infirmed, immune compromised individuals)?
- Is the food to be used for institutional feeding or the home?
After
the list of potential hazards is assembled, stage two, the hazard evaluation, is conducted. In stage two of the
hazard analysis, the HACCP team decides which potential hazards must be
addressed in the HACCP plan. During this stage, each potential hazard is
evaluated based on the severity of the potential hazard and its likely
occurrence. Severity is the seriousness of the consequences of exposure to the
hazard. Considerations of severity (e.g., impact of sequelae, and magnitude and
duration of illness or injury) can be helpful in understanding the public health
impact of the hazard. Consideration of the likely occurrence is usually based
upon a combination of experience, epidemiological data, and information in the
technical literature.
|
Examples of How the Stages of Hazard Analysis are used to Identify and
Evaluate Hazards* |
||||
|
Hazard Analysis Stage |
Frozen cooked beef patties produced in a manufacturing plant |
Product containing eggs prepared for food service |
Commercial frozen pre-cooked, boned chicken for further processing |
|
|
Stage 1 Determine potential Hazard hazards associated Identification with product |
Enteric pathogens (i.e., E. coli O157: H7 and Salmonella) |
Salmonella in finished product. |
Staphylococcus aureus in finished product. |
|
|
Stage 2 Hazard Evaluation |
Assess severity of health consequences if potential hazard is not properly controlled. |
Epidemiological evidence indicates that these pathogens cause severe
health effects including death among children and elderly. Under cooked beef
patties have been linked to disease from these pathogens. |
Salmonellosis is a food borne infection causing a moderate to severe
illness that can be caused by ingestion of only a few cells of Salmonella. |
Certain strains of S. aureus produce an enterotoxin which can cause a
moderate food borne illness. |
|
Determine likelihood of occurrence
of potential hazard if not properly controlled. |
E. coli O157:H7 is of very low probability and salmonellae is of
moderate probability in raw meat. |
Product is made with liquid eggs which have been associated with past
outbreaks of salmonellosis. Recent problems with Salmonella serotype
Enteritidis in eggs cause increased concern. Probability of Salmonella in raw
eggs cannot be ruled out. If not effectively controlled, some consumers are likely to be exposed
to Salmonella from this food. |
Product may be contaminated with S. aureus due to human handling
during boning of cooked chicken. Enterotoxin capable of causing illness will
only occur as S. aureus multiplies to about 1,000,000/g. Operating procedures
during boning and subsequent freezing prevent growth of S. aureus, thus the
potential for enterotoxin formation is very low. |
|
|
Using information above, determine
if this potential hazard is to be addressed in the HACCP plan. |
The HACCP team decides that enteric pathogens are hazards for this
product. Hazards must be addressed in the
plan. |
HACCP team determines that if the potential hazard is not properly
controlled, consumption of product is likely to result in an unacceptable
health risk. Hazard must be addressed in the
plan. |
The HACCP team determines that the potential for enterotoxin formation
is very low. However, it is still desirable to keep the initial number of S.
aureus organisms low. Employee practices that minimize contamination, rapid
carbon dioxide freezing and handling instructions have been adequate to
control this potential hazard. Potential hazard does not need to
be addressed in plan. |
|
For
example, if a HACCP team were to conduct a hazard analysis for the production
of frozen cooked beef patties above, enteric pathogens (e.g., Salmonella and
verotoxin-producing Escherichia coli) in the raw meat would be
identified as hazards. Cooking is a control measure which can be used to
eliminate these hazards. The following is an excerpt from a hazard analysis
summary table for this product.
|
Step |
Potential
Hazard(s) |
Justification |
Hazard
to be addressed in plan? |
Control |
|
5.
Cooking |
Enteric
pathogens: |
enteric
pathogens have been associated with outbreaks of food borne illness from
undercooked ground beef |
Y |
Cooking |
Determine critical control
points (CCPs) (Principle 2)
A critical control point is defined as a step at which control
can be applied and is essential to prevent or eliminate a food safety hazard or
reduce it to an acceptable level.
One
strategy to facilitate the identification of each CCP is the use of a CCP
decision tree
Critical
control points are located at any step where hazards can be either prevented,
eliminated, or reduced to acceptable levels. Examples of CCPs may include:
thermal processing, chilling, testing ingredients for chemical residues,
product formulation control, and testing product for metal contaminants.
For
example, a specified heat process, at a given time and temperature designed to
destroy a specific microbiological pathogen, could be a CCP. Likewise,
refrigeration of a precooked food to prevent hazardous microorganisms from
multiplying, or the adjustment of a food to a pH necessary to prevent toxin
formation could also be CCPs.
Example I of a CCP Decision Tree
Important
considerations when using the decision tree:
- The
decision tree is used after the hazard analysis.
- The
decision tree then is used at the steps where a hazard that must be
addressed in the HACCP plan has been identified.
- A
subsequent step in the process may be more effective for controlling a
hazard and may be the preferred CCP.
- More
than one step in a process may be involved in controlling a hazard.
- More
than one hazard may be controlled by a specific control measure.
Example II of a CCP Decision Tree
Establish critical limits (Principle 3)
A
critical limit is a maximum and/or minimum value to which a biological,
chemical or physical parameter must be controlled at a CCP to prevent,
eliminate or reduce to an acceptable level the occurrence of a food safety
hazard. A critical limit is used to distinguish between safe and unsafe
operating conditions at a CCP.
Each
CCP will have one or more control measures to assure that the identified
hazards are prevented, eliminated or reduced to acceptable levels. Each control
measure has one or more associated critical limits. Critical limits may be
based upon factors such as: temperature, time, physical dimensions, humidity,
moisture level, water activity (aw), pH, titratable acidity, salt concentration,
available chlorine, viscosity, preservatives, or sensory information such as
aroma and visual appearance.
An
example is the cooking of beef patties. The process should be designed to
ensure the production of a safe product. The hazard analysis for cooked meat
patties identified enteric pathogens (e.g., verotoxigenic E. coli such as E. coli O157:H7, and
salmonella) as significant biological hazards. Furthermore, cooking is the
step in the process at which control can be applied to reduce the enteric
pathogens to an acceptable level. In this example, the HACCP team
concluded that a thermal process equivalent to 155° F for 16 seconds would be
necessary to assure the safety of this product. To ensure that this time and
temperature are attained, the HACCP team for one facility determined that it
would be necessary to establish critical limits for the oven temperature and
humidity, belt speed (time in oven), patty thickness and composition (e.g., all
beef, beef and other ingredients). Control of these factors enables the
facility to produce a wide variety of cooked patties, all of which will be
processed to a minimum internal temperature of 155° F for 16 seconds.
|
Process Step |
CCP |
Critical Limits |
|
Cooking |
YES |
Oven temperature:___° F |
Establish monitoring procedures (Principle 4)
Monitoring
is a planned sequence of observations or measurements to assess whether a CCP
is under control and to produce an accurate record for future use in
verification. Monitoring serves three main purposes. First, monitoring is
essential to food safety management in that it facilitates tracking of the
operation. If monitoring indicates that there is a trend towards loss of
control, then action can be taken to bring the process back into control before
a deviation from a critical limit occurs. Second, monitoring is used to
determine when there is loss of control and a deviation occurs at a CCP, i.e.,
exceeding or not meeting a critical limit. When a deviation occurs, an
appropriate corrective action must be taken. Third, it provides written
documentation for use in verification.
Monitoring
equipment must be carefully calibrated for accuracy.
Assignment
of the responsibility for monitoring is an important consideration for each
CCP. Specific assignments will depend on the number of CCPs and control
measures and the complexity of monitoring. Personnel who monitor CCPs are often
associated with production (e.g., line supervisors, selected line workers and
maintenance personnel) and, as required, quality control personnel. Those
individuals must be trained in the monitoring technique for which they are
responsible, fully understand the purpose and importance of monitoring, be
unbiased in monitoring and reporting, and accurately report the results of
monitoring.
All
records and documents associated with CCP monitoring should be dated and signed
or initialed by the person doing the monitoring. It is necessary to establish a
monitoring frequency and procedure that will be reliable enough to indicate
that the CCP is under control.
Most monitoring procedures need to be rapid because they relate
to on-line, "real-time" processes and there will not be time for
lengthy analytical testing. Examples of monitoring activities include: visual
observations and measurement of temperature, time, pH, and moisture level.
Microbiological tests are seldom effective for monitoring due to
their time-consuming nature and problems with assuring detection of
contaminants. Physical and chemical measurements are often preferred because
they are rapid and usually more effective for assuring control of
microbiological hazards. For example, the safety of pasteurized milk is based upon
measurements of time and temperature of heating rather than testing the heated
milk to assure the absence of surviving pathogens.
Establish corrective actions (Principle 5)
An important
purpose of corrective actions is to prevent foods which may be hazardous from
reaching consumers. Where there is a deviation from established critical
limits, corrective actions are necessary. Therefore, corrective actions should
include the following elements: (a) determine and correct the cause of
non-compliance; (b) determine the disposition of non-compliant product and (c)
record the corrective actions that have been taken. Specific corrective actions
should be developed in advance for each CCP and included in the HACCP plan.
As a minimum, the
HACCP plan should specify what is done when a deviation occurs, who is
responsible for implementing the corrective actions, and that a record will be
developed and maintained of the actions taken. Individuals who have a thorough
understanding of the process, product and HACCP plan should be assigned the
responsibility for oversight of corrective actions.
Establish verification procedures (Principle 6)
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) National Academy of Sciences (1985) pointed out that the
major infusion of science in a HACCP system centres 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.
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.
Verification
activities are carried out by individuals within a company, third party
experts, and regulatory agencies. It is important that individuals doing
verification have appropriate technical expertise to perform this
function.
Example
of a Company Established HACCP Verification Schedule
|
Activity |
Frequency |
Responsibility |
Reviewer |
|
Verification
Activities Scheduling |
Yearly
or Upon HACCP System Change |
HACCP
Coordinator |
Plant
Manager |
|
Initial
Validation of HACCP Plan |
Prior
to and During Initial Implementation of Plan |
Independent
Expert(s)(a) |
HACCP
Team |
|
Subsequent
validation of HACCP Plan |
When
Critical Limits Changed, Significant Changes in Process, Equipment Changed,
After System Failure, etc. |
Independent
Expert(s)(a) |
HACCP
Team |
|
Verification
of CCP Monitoring as Described in the Plan (e.g., monitoring of patty cooking
temperature) |
According
to HACCP Plan (e.g., once per shift) |
According
to HACCP Plan (e.g., Line Supervisor) |
According
to HACCP Plan (e.g., Quality Control) |
|
Review
of Monitoring, Corrective Action Records to Show Compliance with the Plan |
Monthly |
Quality
Assurance |
HACCP
Team |
|
Comprehensive
HACCP System Verification |
Yearly |
Independent
Expert(s)(a) |
Plant
Manager |
|
(a) Done by others than the team
writing and implementing the plan. May require additional technical expertise
as well as laboratory and plant test studies. |
|||
Examples of Verification Activities
- Verification
procedures may include:
- Establishment
of appropriate verification schedules.
- Review of the HACCP plan for completeness.
- Confirmation of the accuracy of the flow diagram.
- Review of the HACCP system to determine if the facility is
operating according to the HACCP plan.
- Review of CCP monitoring records.
- Review of records for deviations and corrective actions.
- Validation of critical limits to confirm that they are adequate to
control significant hazards.
- Validation of HACCP plan, including on-site review.
- Review of modifications of the HACCP plan.
- Sampling and testing to verify CCPs.
- Verification
should be conducted:
- Routinely,
or on an unannounced basis, to assure CCPs are under control.
- When there are emerging concerns about the safety of the product.
- When foods have been implicated as a vehicle of foodborne disease.
- To confirm that changes have been implemented correctly after a
HACCP plan has been modified.
- To assess whether a HACCP plan should be modified due to a change
in the process, equipment, ingredients, etc.
- Verification
reports may include information on the presence and adequacy of.
- The
HACCP plan and the person(s) responsible for administering and updating
the HACCP plan.
- The records associated with CCP monitoring.
- Direct recording of monitoring data of the CCP while in operation.
- Certification that monitoring equipment is properly calibrated and
in working order.
- Corrective actions for deviations.
- Sampling and testing methods used to verify that CCPs are under
control.
- Modifications to the HACCP plan.
- Training and knowledge of individuals responsible for monitoring CCPs.
- Validation activities.
Generally,
the records maintained for the HACCP System should include the following:
- A
summary of the hazard analysis, including the rationale for determining
hazards and control measures.
- The
HACCP Plan
Listing of the HACCP team and assigned
responsibilities.
Description of the food, its distribution, intended
use, and consumer.
Verified flow diagram.
HACCP Plan Summary Table that includes information
for:
Steps in the process that are CCPs
The hazard(s) of concern.
Critical limits
Monitoring*
Corrective actions*
Verification procedures and schedule*
Record-keeping procedures*
* A brief summary of position responsible for
performing the activity and the procedures and frequency should be provided
The following is an example of a HACCP plan summary
table:
|
CCP |
Hazards |
Critical
limit(s) |
Monitoring |
Corrective
Actions |
Verification |
Records |
|
|
|
|
|
|
|
|
- Support
documentation such as validation records.
- Records
that are generated during the operation of the plan.
Examples of HACCP Records
- Ingredients
for which critical limits have been established.
- Supplier
certification records documenting compliance of an ingredient with a
critical limit.
- Processor audit records verifying supplier compliance.
- Storage records (e.g., time, temperature) for when ingredient
storage is a CCP.
- Processing,
storage and distribution records
- Information
that establishes the efficacy of a CCP to maintain product safety.
- Data establishing the safe shelf life of the product; if age of
product can affect safety.
- Records indicating compliance with critical limits when packaging
materials, labelling or sealing specifications are necessary for food
safety.
- Monitoring records.
- Verification records.
- Deviation
and corrective action records.
- Employee
training records that are pertinent to CCPs and the HACCP plan.
- Documentation
of the adequacy of the HACCP plan from a knowledgeable HACCP expert.
IMPLEMENTATION AND MAINTENANCE OF THE HACCP PLAN
The
successful implementation of a HACCP plan is facilitated by commitment from top
management. The next step is to establish a plan that describes the individuals
responsible for developing, implementing and maintaining the HACCP system.
Initially, the HACCP coordinator and team are selected and trained as
necessary. The team is then responsible for developing the initial plan and
coordinating its implementation.
Often it
is a good idea to develop a timeline for the activities involved in the initial
implementation of the HACCP plan. Implementation of the HACCP system involves
the continual application of the monitoring, record-keeping, corrective action
procedures and other activities as described in the HACCP plan.
Maintaining
an effective HACCP system depends largely on regularly scheduled verification
activities. The HACCP plan should be updated and revised as needed. An
important aspect of maintaining the HACCP system is to assure that all
individuals involved are properly trained so they understand their role and can
effectively fulfil their responsibilities.





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