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HACCP

HACCP for Cannabis: A Guide for Developing a Plan

By Radojka Barycki
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HACCP

Hazard Analysis and Critical Control Points (HACCP) is a systematic approach that evaluates hazards that may potentially be present in food products that can harm the consumer. The process used to manufacture the product is evaluated from raw material procurement, receiving and handling, to manufacturing, distribution and consumption of the finished product1. The documented process is what is known as HACCP plan. Although HACCP was designed to evaluate hazards in foods, it can be used to assess or evaluate hazards that may potentially be present in cannabis consumable products (edibles and vaping) that can cause harm to the consumer.

HACCP plan development requires a systematic approach that covers 5 preliminary steps and 7 principles. A systematic approach means that each step must be followed as outlined. Skipping a step will result in a HACCP plan that most likely will be ineffective to control potential hazards in the product.

The 5 preliminary steps are:

  1. Establish a HACCP team
  2. Describe the product
  3. Establish the intended use of the product
  4. Develop a flow diagram
  5. Verify the flow diagram

The 7 Principles are:HACCP

  1. Conduct a hazard analysis
  2. Identify the critical control points (CCPs)
  3. Establish critical limits (CL)
  4. Establish monitoring procedures
  5. Establish corrective actions
  6. Establish verification procedures
  7. Establish records and record keeping procedures1,2

It is important to mention that HACCP plans are supported by programs and procedures that establish the minimum operational and sanitary conditions to manufacture safe products. These programs and procedures are known as pre-requisite programs (PRP) or preventative controls1,2.

Figure 1. Flow Diagram

A multidisciplinary team must be established in order to ensure that all inputs of the product manufacturing process are considered during the hazards analysis discussions. The description of the product and its intended use provides detail information on ingredients, primary packaging material, methods of distribution, chemical characteristics, labeling and if any consumer might be vulnerable to the consumption of the product. A verified flow diagram is an accurate representation of the different steps followed during the product manufacturing process and will be used to conduct a hazard analysis. An inaccurate flow diagram will set the stage for an inadequate HACCP plan. Therefore, it is important that the HACCP team members verify the flow diagram. Figure 1 is a flow diagram for a fictional infused apple juice manufacturing plan that I will be using as an example.

The hazard analysis is the backbone of the HACCP plan. There are two elements that must be considered when conducting the hazard analysis:

  • Identification of the hazard associated with the ingredient(s) and/or the product manufacturing steps. These hazards have been categorized as: Biological, chemical (including radiological) and physical. Biological, chemical and physical hazards should be considered for each ingredient, primary packaging and process step. Also, it is important that the team is specific as to what hazard they are referring to. I often find that biological hazards are identified as “pathogens” for example. The team has to be specific on which pathogen is of concern. For example, if you are processing apple juice, the pathogens of concern are pathogenic coli and Salmonella sp. However, if you are processing carrot juice, you need to add Clostridium botulinum as a biological hazard also. If the choice of method to eliminate the hazards is pasteurization for example, the processing temperature-time combinations will differ greatly when manufacturing the apple juice vs. the carrot juice as C. botulinum is an organism that can sporulate and, therefore, is harder to kill.
  • Characterization of the hazard. This implies determining the significance of the potential hazard based on the severity of the consequence if it is consumed and the likelihood of occurrence in the ingredient or process step. Only steps in the process that has significant hazards should be considered further.
Table 1. Ingredient Hazard Analysis

In my professional experience, the hazard analysis is one of the most difficult steps to achieve because it requires the expertise of the multidisciplinary team and a lot of discussion to get to the conclusion of which hazard is significant. I find that a lot of teams get overwhelmed during this process because they consider that everything in the process may represent a hazard. So, when I am working with clients or providing training, I remind everyone that, in the bigger scheme of things, we can get stricken by a lighting in the middle of a thunderstorm. However, what will increase our chances would be whether we are close or not to a body of water for example. If I am swimming in the middle of a lake, I increase my chances to get stricken by the lighting. In comparison, if I am just sitting in my living room drinking a cup of coffee during the thunderstorm, the likelihood of being stricken by a lighting is a lot less. The same rationale should be applied when conducting the hazard analysis for manufactured products. You may have a hazard that will cause illness or death (high on the severity chart) but you also may have a program that mitigates the likelihood of introducing or having the hazard. The program will reduce the significance of the hazard to a level that may not need a critical control point to minimize or eliminate it.

Table 2. Process Hazard Analysis (1)

Clear as mud, right? So, how would this look like on the infused apple juice example? Table 1 shows the hazard analysis for the ingredients. Tables 2 and 3 show the hazard analysis for the part of the process. In addition, I have identified the CCPs: Patulin testing and pasteurization. There is a tool called the CCP decision tree that is often used to determine the CCPs in the process.

Once we have the CCPs, we need to establish the critical limits to ensure that the hazard is controlled. These limits must be validated. In the case of Patulin, the FDA has done several studies and has established 50 ppm as the maximum limit. In the case of pasteurization, a validation study can be conducted in the juice by a 3rd party laboratory. These studies typically are called thermal death studies (TDS) and provide the temperature and time combination to achieve the reduction of the pathogen(s) of concern to an acceptable level that they do not cause harm. In juice, the regulatory requirement is a 5-log reduction. So, let’s say that the TDS conducted in the infused apple juice determined that 165°F for 5 seconds is the critical limit for pasteurization. Note that the 5 seconds will be provided by the flow of the product through the holding tube of the pasteurizer. This is measured based on flow in gallons per minute.

Table 3. Process Hazard Analysis (2)

Monitoring is essential to ensure that the critical limits are met. A monitoring plan that outlines what, how, when and who is responsible for the monitoring is required.

Ideally, the system should not fail. However, in a manufacturing environment, failures can happen. Therefore, it is important to pre-establish steps that will be taken to ensure that the product is not out of the control of the facility in the event of a deviation from the HACCP plan. These steps are called corrective actions and must be verified once they are completed. Corrective actions procedures must address the control of the product, investigation of the event, corrective actions taken so the deviation doesn’t reoccur and product disposition.

Table 4. HACCP Plan Summary

Verification activities ensure that the HACCP plan is being followed as written. Typically, verification is done by reviewing the records associated with the plan. These records include but are not limited to monitoring records, calibration records, corrective action records, and preventive maintenance records for equipment associated with the CCPs. Record review must be done within 7 working days of the record being produced.

Finally, establishing records and record keeping procedures is the last step on developing HACCP plans. Records must be kept in a dry and secure location.

Table 4 show the summary of the HACCP plan for the infused apple juice example.

For more information on how to develop a HACCP plan for your facility, read the resources below:

  1. HACCP Principles and Application Guidelines – The National Advisory Committee on Microbiological Criteria for Foods (NACMCF)
  2. ASTM D8250-19: Standard Practice for Applying a Hazard Analysis Critical Control Points (HACCP) Systems for Cannabis Consumable Products

The Power of Prevention: Pathogen Monitoring in Cannabis Cultivation and Processing Facilities

By Nathan Libbey
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As the cannabis market matures and the value chain becomes modernized, it’s important to address product safety in a comprehensive way. In other areas of manufacturing, Hazard Analysis & Critical Control Points (HACCP) has been the standard for reducing hazards both for employees and for the products themselves. A Critical Control Point (CCP) is any spot from conception to consumption where a loss of control can potentially result in risk (Unnevehr, 1996). In the food realm, HACCP has been used to drive quality enhancements since the 1980s (Cichy, 1982).

In a nutshell, HACCP seeks to help identify where a problem may enter a product or environment and how that problem may be addressed before it escalates. In cannabis, these hazards include many of the same problems that food products have: specifically molds, yeasts, and pathogenic bacteria (Listeria, E. coli, etc.). While the current industry standard is to test products at the end stage for these contaminants, this late-stage pass/fail regimen leads to huge lots of destroyed product and a risk for consumer distrust (Yamashiro, 2019). HACCP, therefore, should be applied at every stage of the production process.

Pathogen Environmental Monitoring (PEM) is a tool that can be used to identify CCPs in a cannabis cultivation or processing facility. The main goal of a PEM program is to find a contaminant before it reaches a surface that touches the product or the product itself. PEM is conducted using a pre-moistened swab or a sponge to collect a sample from the cannabis environment. The swab can then be sent to a lab for microbial testing. Keys to an effective PEM are:

1. Start with a broad stroke – When the FDA comes to a facility suspected of producing pathogen-laced food products, they conduct what is known as a Swab-a-thon. A Swab-a-thon is a top to bottom collection of samples, usually totaling 100 or more. Similarly, preemptively swabbing should be the first step in any PEM—swab everything to see what exists as a baseline.

2. Map your scene – identify on a map of your facility the following:

  • Cannabis contact surfaces (CCS) (belts, clippers, tables, etc)
  • Non-cannabis contact surfaces (Non-CCS) (floors, lighting, drains, etc)
  • Flow of air and people (where do air and people enter and where do they go?

Identifying the above zones will help deepen your understanding of where contaminants may come into contact with cannabis and how they may migrate from a Non-CCS to a CCS. 

3. Plan and execute:

  • Based on the results of mapping, and Swab-a-thon, identify where and when you will be collecting samples on a consistent and repeatable basis. Emphasis should be placed on areas that are deemed a risk based on 1) and 2). Samples should be collected at random in all zones to ensure comprehensive screening.

4. Remediate and modify:

  • If you get a positive result during PEM, don’t panic—pathogens are ubiquitous.
  • Remediate any trouble spots with deep cleaning, remediation devices or other protocols.
  • Re-test areas that were positive for pathogens to ensure remediation is successful.
  • Revisit and modify the plan at least once a year and each time a new piece of equipment is added or production flow is otherwise changed.

The steps above are a good starting point for a grower or processor to begin a PEM. Remember that this is not a one-size-fits-all approach to safety; each facility has its own unique set of hazards and control points.

Comprehensive guides for PEM can be found at the links below, many of the concepts can be applied to cannabis production.

https://affifoodsafety.org/lcp/advanced-search/

http://www.centerforproducesafety.org/amass/documents/document/263/Listeria%20Guidance%20UFPA%202013.pdf

Cichy, R. (1982). HACCP as a quality assurance tool in a commissary food-service system. International Journal of Hospitality Management, 1(2), 103-106.

Unnevehr, L., & Jensen, H. (1996). HACCP as a Regulatory Innovation to Improve Food Safety in the Meat Industry. American Journal of Agricultural Economics, 78(3), 764-769.

Yamashiro, C, & Baca, Y. (2019).  Prevent high-value cannabis crop loss with innovative environmental monitoring tool.

Canadian Cannabis 2.0: Going Beyond GPP

By Lindsay Glass
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One year after Canadian recreational cannabis’s historic date of October 17th, 2018, in comes Cannabis 2.0, which will see edibles containing cannabis and cannabis concentrates enter the legal recreational market. As of October 17th, 2019, there are seven classes of legal cannabis products in the marketplace, making Canada an innovative leader in this evolving industry.

The launch of cannabis edibles and concentrates into the legal market has also led to changes in the regulatory framework and the introduction of new best practices in terms of Good Production Practices (GPP). This should not come as a surprise, as these products are introducing the inclusion of cannabis and food products.

Since Oct 17th, 2019, we have seen a significant amendment to the Cannabis Regulations through the addition of sections 88.93 and 88.94, stating that holders of a license to process cannabis edibles or extracts must identify and analyze all potential hazards and have control measures in place to prevent, eliminate or reduce these hazards from occurring. Any license holder that conducts activities related to cannabis edibles, extracts or produces an ingredient used in an edible or extract must also prepare, retain, maintain and implement a preventive control plan (PCP). To indicate that cannabis edibles and extracts regulations resemble other regulated food commodities, would not be an understatement.

By having license holders establish food safety practices similar to the ones being used by federally regulated food commodities, it is allowing cannabis producers to implement a preventive approach by focusing on safety and reducing hazards in their operation.

According to the Cannabis Regulations a license holder’s PCP must include the following:

  • Identify all of the biological, chemical and physical hazards that could contaminate or could be at risk of contaminating any cannabis product or anything that could be used as an ingredient in producing a cannabis product. Once all of the hazards have been identified, you need to determine the likelihood of that hazard occurring
  • The measures to be taken to control each identified hazard. Each control measure must then describe the task involved, how the monitoring task is carried out, who will be performing the monitoring task and how often the monitoring task is carried out
  • A description of the critical control points, which are the steps in the process where a control measure is applied and is essential to eliminating a hazard. Next are the measures to be taken to monitor a critical control point
  • A description of each cannabis product produced or ingredient that will be used in a cannabis product, including extract contents, permitted & prohibited ingredients, exceptions, naturally occurring substances and uniform distribution
  • A description of corrective action procedures for every critical control point
  • A description of verification procedures

What else comes with the collaboration of these two commodities in a regulatory environment? The need for industry to adapt and move beyond the basic GPP and pharmaceutical requirements and start thinking in terms of preventative controls and food safety. By encompassing the GPP requirements, traceability, employee training and now a complete hazard analysis and preventive control plan, you have the makings of a full food safety plan. However, food safety plans can be comprehensive and difficult to manage by utilizing a manual system.

HACCPCompanies that are serious about the integration of cannabis edibles and extracts into their operations, will need to implement compliance and traceability technology that will facilitate an automated system. In return, you will streamline all monitoring processes throughout the production, packaging and storage stages of the system. This is crucial to a preventive control plan. An automated solution will also help with record keeping, document management and corrective actions, as license holders deal with failures in real time to avoid negative impacts on their products.

There are many compliance software platforms available in the industry and choosing the right one for your operation is a task in itself, as not all software platforms for the cannabis industry are created equally. Although many seed-to-sale platforms handle regulatory requirements and some document management, these platforms do not see cannabis as food products, and therefore, are leaving companies with a void in this aspect of their operation. When looking for a software platform that will encompass all of your regulatory needs, pay particular attention to systems that are designed for the food industry but have adapted to cannabis. These systems will be the most dynamic when it comes to implementing preventive control plans, handling in-depth traceability with recall plans and the ability to become completely digital.

For more information on how to automate your food safety plan for cannabis edibles and extracts, please contact Iron Apple QMS to learn about our online Cannabis QMS.

HACCP

Hazard Analysis and Critical Control Points (HACCP) for the Cannabis Industry: Part 3

By Kathy Knutson, Ph.D.
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HACCP

Parts One and Two in this series have defined Good Manufacturing Practices, introduced Hazard Analysis and Critical Control Points (HACCP) and explained the first HACCP step of hazard analysis. A food safety team will typically work from a flow diagram to identify biological, chemical or physical hazards at each step of processing and packaging. Once the hazard is identified, the severity and probability are debated. Hazards with severe consequences or high probability are carried through the HACCP plan as Critical Control Points (CCPs).

Critical Control Points definedHACCP is a do-it-yourself project.

Where exactly will the hazard be controlled? CCPs are embedded within certain steps in processing and packaging where the parameters, like temperature, must be met to ensure food safety. Failure at a CCP is called a deviation from the HACCP plan. The food safety team identifies where manufacturing problems could occur that would result in a product that could cause illness or injury. Not every step is a CCP! For example, I worked with a client that had several locations for filters of a liquid stream. The filters removed food particles, suspended particulates and potentially metal. We went through a virtual exercise of removing each filter one-by-one and talking through the result on controlling the potential hazard of metal. We agreed that failure of the final filter was the CCP for catching metal, but not the other filters. It was not necessary to label each filter as a CCP, because every CCP requires monitoring and verification.

Identification of a CCP starts more documentation, documentation, documentation.

Do you wish you had more reports to write, more forms to fill out, more data to review? No. Nobody wants more work. When a CCP is identified, there is more work to do. This just makes sense. If a CCP is controlling a hazard, you want to know that the control is working. Before I launch into monitoring, I digress to validation.

CCP validationThis is where someone says, “We have always done it this way, and we have never had a problem.”

You want to know if a critical step will actually control a hazard. Will the mesh of a filter trap metal? Will the baking temperature kill pathogens? Will the level of acid stop the growth of pathogens? The US had a major peanut butter recall by Peanut Corporation of America. There were 714 Salmonella cases (individuals) across 46 states from consumption of the contaminated peanut butter. Imagine raw peanuts going into a roaster, coming out as roasted peanuts and being ground into butter. Despite the quality parameters of the peanut butter being acceptable for color and flavor, the roasting process was not validated, and Salmonella survived. Baking of pies, pasteurization of juice and canning all rely on validated cook processes for time and temperature. Validation is the scientific, technical information proving the CCP will control the hazard. Without validation, your final product may be hazardous, just like the peanut butter. This is where someone says, “We have always done it this way, and we have never had a problem.” Maybe, but you still must prove safety with validation.

The hazard analysis drives your decisions.

Starting with the identification of a hazard that requires a CCP, a company will focus on the control of the hazard. A CCP may have one or more than one parameter for control. Parameters include time, temperature, belt speed, air flow, bed depth, product flow, concentration and pH. That was not an exhaustive list, and your company may have other critical parameters. HACCP is a do-it-yourself project. Every facility is unique to its employees, equipment, ingredients and final product. The food safety team must digest all the variables related to food safety and write a HACCP plan that will control all the hazards and make a safe product.

Meeting critical limits at CCPs ensures food safety

The HACCP plan details the parameters and values required for food safety at each CCP.The HACCP plan identifies the minimum or maximum value for each parameter required for food safety. A value is just a number. Imagine a dreadful day; there are problems in production. Maybe equipment stalls and product sits. Maybe the electricity flickers and oven temperature drops. Maybe a culture in fermentation isn’t active. Poop happens. What are the values that are absolutely required for the product to be safe? They are often called critical limits. This is the difference between destroying product and selling product. The HACCP plan details the parameters and values required for food safety at each CCP. In production, the operating limits may be different based on quality characteristics or equipment performance, but the product will be safe when critical limits are met. How do you know critical limits are met?

CCPs must be monitored

Every CCP is monitored. Common tools for monitoring are thermometers, timers, flow rate meters, pH probes, and measuring of concentration. Most quality managers want production line monitoring to be automated and continuous. If samples are taken and measured at some frequency, technicians must be trained on the sampling technique, frequency, procedure for measurement and recording of data. The values from monitoring will be compared to critical limits. If the value does not reach the critical limit, the process is out of control and food safety may be compromised. The line operator or technician should be trained to know if the line can be stopped and how to segregate product under question. Depending on the hazard, the product will be evaluated for safety, rerun, released or disposed. When the process is out of control, it is called a deviation from the HACCP plan.

A deviation initiates corrective action and documentation associated with the deviation. You can google examples of corrective action forms; there is no one form required. Basically, the line operator, technician or supervisor starts the paperwork by recording everything about the deviation, evaluation of the product, fate of the product, root cause investigation, and what was done to ensure the problem will not happen again. A supervisor or manager reviews and signs off on the corrective action. The corrective action form and associated documentation should be signed off before the product is released. Sign off is an example of verification. Verification will be discussed in more detail in a future article.

My thoughts on GMPs and HACCP were shared in a webinar on May 2nd hosted by CIJ and NEHA. Please comment on this blog post below. I love feedback!