Michele Pfannenstiel, Dirigo Food Safety
FST Soapbox

Quality Assurance and Food Safety in Cannabis-Infused Products

By Michele Pfannenstiel, DVM
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Michele Pfannenstiel, Dirigo Food Safety

The legal cannabis-infused products industry is growing with impressive and predictable rapidity. But because the rollout of new regulations occurs in an awkward and piecemeal fashion, with stark differences from one state to another, and sometimes even one county to another, uncertainty reigns.1 Many entrepreneurs are diving headlong into the nascent industry, hoping to take advantage of an uncertain regulatory environment where government audits and inspections are rare. These business owners will see quality assurance and product safety as burdens—costs to be avoided to the greatest extent possible.

I have seen this time and time again, even in the comparatively well-regulated food industry, and it is always a mistake.

If you find yourself thinking about quality assurance or food safety as a prohibitive cost, annoyance or distraction, I encourage you to change your thinking on this issue. The most successful businesses realize that product safety and quality assurance are inextricably linked with profitability. They are best thought of not as distractions, but as critical elements of an efficient and optimized process. Proper QA and safety are not costs, they are value.

Food safety and quality assurance should be seen as important elements of the process that you undertake to enforce the high standards and consistency that will win you repeat customers. The fact that they guard against costly recalls or satisfy meddlesome auditors is only a bonus. Realizing this will make your business smarter, faster and more profitable.

Learn more about the science, technology, regulatory compliance and quality management issues surrounding cannabis at the Food Labs / Cannabis Labs Conference | June 2–4, 2020If today you cannot clearly communicate your product standards to your employees and to your customers, then you have some work to do. That’s because quality assurance always begins with precise product specifications. (A good definition of “quality” is “conformance to specifications.”) How can you assess quality if you don’t have a definitive standard with which to evaluate it? My consulting firm works with food businesses both small and large, and this is where we begin every relationship. You might be surprised how often even a well-established business has a difficult time naming and describing every one of its products, let alone articulating objective standards for them.

This may be doubly difficult for fledgling businesses in the cannabis world. Because the market is so new, there are fewer agreed-upon standards to fall back on.

When we help businesses create specifications, we always look at the relevant regulations while keeping in mind customer expectations. In cannabis, the regulations just aren’t as comprehensive as they are for conventional food and agriculture. Laws and guidelines are still in flux, and different third-party standards are still competing for market dominance. Different states have entirely different standards, and don’t even agree, for example, whether cannabis edibles should be considered pharmaceuticals or food. To some extent, it’s the wild west of regulation, and as long as the federal government remains reluctant to impose national guidelines, it’s likely to remain so.

The wild west may be a good place for the unscrupulous, but it’s not good for business owners that care about the health of their customers and the long-term health of their brand. Don’t take advantage of confusing quality and safety standards by doing the least possible to get by. At some point there will be a scandal in this country when a novel cannabis product makes dozens of customers sick, or worse. You don’t want it to be yours.

With cannabis-infused products, there is a unique additional factor at play: The strength of THC and other psychoactive compounds. Again, there are few agreed-upon standards for potency testing, and relatively little oversight of the laboratories themselves. This allows labs to get sloppy, and even creates an incentive for them to return inflated THC counts; at the very least, results may hugely differ from one lab to another even for identical products.2 Some labs are ISO 17025 accredited, and some are not. Using an unaccredited laboratory may prevent your efforts to create consistent and homogeneous products.

Even in comparatively well-regulated states, such as Colorado, it is ultimately your responsibility to create products that are safe and consistent. And in the states where the politicians haven’t even figured out which department is regulating cannabis products, your standards should be tougher than whatever is officially required.

And so we look to the more established world of conventional food and agriculture as a guide for the best practices in the cannabis industry.

Hazards

The most constructive way to look at food safety, and the way your (eventual) auditors and regulators will view it, is to look at your product and process from the perspective of the potential hazards.

Some day, when regulation finally gets sorted out, you are likely to be asked to implement a Hazard Analysis and Critical Control Points (HACCP) safety system. HACCP framework recognizes three broad categories of hazards:

  • Physical hazards: Foreign material that is large enough to cause harm, such as glass or metal fragments.
  • Chemical hazards: Pesticides and herbicides, heavy metals, solvents and cleaning solutions.
  • Biological hazards: The pathogens that cause foodborne illness in your customers, such as E. coli, and other biological hazards, such as mycotoxins from molds.

All of these hazards are highly relevant to cannabis-infused product businesses.

The HACCP framework asks us to consider what steps in our process offer us the chance to definitively and objectively eliminate the risk of relevant hazards. In a cannabis cookie, for example, this might be a cooking step, a baking process that kills the Salmonella that could be lurking in your flour, eggs, chocolate or (just as likely!) the cannabis extracts themselves.

A good HACCP system is merely the capstone resting atop a larger foundational system of safety programs, including standard operating procedures, good manufacturing practices, and good agricultural practices. It’s important to use these agreed-upon practices and procedures in your own facility and to ensure that your suppliers and shippers are doing the same. Does your cultivator have a culture of safety and professionalism? Do they understand their own risks of hazards?

HACCP offers a rigorous perspective with which to look at a process, and to examine all of the places where it can go wrong. The safety system ultimately holds everything together because of its emphasis on scrupulous documentation. Every important step is written down, every time, and is always double-checked by a supervisor. It sounds like a lot of paperwork, but it is better viewed as an opportunity to enforce consistency and precision.

When you thoroughly document your process you’ll create a safer product, run a more efficient business, and make more money.

References

  1. Rough, L. (2016, March 4). Leafly’s State-by-State Guide to Cannabis Regulations. Retrieved from https://www.leafly.com/news/industry/leaflys-state-by-state-guide-to-cannabis-testing-regulations
  2. Jikomes, N. & Zoorob, M. (2018, March 14). The Cannabinoid Content of Legal Cannabis in Washington State Varies Systematically Across Testing Facilities and Popular Consumer Products. Retrieved from https://www.nature.com/articles/s41598-018-22755-2
Susanne Kuehne, Decernis
Food Fraud Quick Bites

Malt, Hops, Water, Yeast…and Antifreeze

By Susanne Kuehne
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Susanne Kuehne, Decernis
Beer, food fraud
Find records of fraud such as those discussed in this column and more in the Food Fraud Database.
Image credit: Susanne Kuehne

Diethylene glycol (DEG) is a substance that is highly toxic to humans. It is used in a wide range of applications, such as brake fluid and as a raw material for resins, and it is often present in antifreeze. In Brazil, more than a dozen people were poisoned by beer containing DEG. The suspected products were recalled and the case is under investigation. It is not clear yet whether the DEG was intentionally added to commit fraud, or whether the contamination was unintentional. We are observing this case very closely, since diethylene glycol has been used for fraudulent purposes in beverages in the past.

Resource

News Desk (January 15, 2020). “Backer told to recall beer linked to poisoning in Brazil”.

 

Melody Ge
Women in Food Safety

Women in Food Safety: Meet the Members…and Join Us!

By Melody Ge
6 Comments
Melody Ge

“For Women, By Women in Food Safety” is a professional group that was formed in January 2019. Comprised of outstanding female leadership, food safety professionals and students who are passionate about this field, the goal is to provide a community and networking platform for the industry to share their stories and experiences, help young professionals, and grow together. Hopefully, the lessons and challenges that are shared will prove useful throughout one’s career journey.

“I see this group as means of connecting young, female food safety professionals to other females in food safety roles so they can share insights from their own experiences in their careers,” says Jill Hoffman, group committee member, and director of global quality systems and food safety at McCormick & Company.

Meet the Group Founder

Melody Ge, Corvium
Melody Ge is also a Food Safety Tech Editorial Advisory Board member

Melody Ge has 10+ years’ experience in food safety and is passionate about food safety on a global scale. She holds both bachelor’s and master’s degrees in food science and engineering, starting her career journey with Beyond Meat as the technical director for product development and food safety and quality control. Following this position Ge established the compliance and integrity program at SQFI, and then worked as the deputy QA director at Lidl US. Currently, Ge is the head of compliance at Corvium, Inc. where she continues to foster food safety culture using advanced technology within the industry. As a non-U.S. citizen, Ge is fortunate to work with different cultures and industries, including retailers and manufacturers, using her multi-language skills and expertise in food safety. Ge believes in women’s leadership and in using their strengths to be successful in their roles.

Meet Some of the Committee Members

Jacqueline Southee, Ph.D.
Jacqueline Southee, Ph.D., FSSC 22000

Jacqueline Southee, North American Representative, FSSC 22000
Jacqueline Southee is an agricultural scientist with a Ph.D. in animal science.She has an academic foundation with what one might call “earthy roots”. “I worked in the animal welfare arena for years before taking a career break to relocate from Europe to the USA and raise two boys. I was fortunate to have an opportunity to return to work with FSSC 22000 in 2013 and have enjoyed building the profile of the organization’s certification program in North America,” says Southee. “I also have experience in (and have encountered challenges) developing and evaluating standard operating procedures. This is becoming more relevant today in the food industry as regulations demand worldwide consistency in the use of standard approaches to minimizing risk and controlling hazards,” she says.

One of Southee’s greatest attributes is her “internationalism”, her experience working professionally with different cultures and fields, and her ability to communicate with all levels of an organization. She believes that there are huge opportunities in food safety for women of all ages and a need for a range of experiences. It remains important to communicate, encourage and to share in order to cultivate the next generation of food safety professionals.

Jill Hoffman, Director of Global Quality Systems and Food Safety, McCormick & Company

Jill Hoffman, McCormick & Company
Jill Hoffman, McCormick & Company

Jill Hoffman started her journey in food safety in college with a major in food science, when her exposure and desire to pursue a career in food came to her while taking a human nutrition course. Since then, Hoffman has had many roles in food manufacturing, both in food safety and quality as well as in operations management. In 2019, she completed her master’s degree in food safety at Michigan State University, which resolved her dilemma of pursuing an advanced degree without having to go back to school full-time (not an option for her!). Hoffman found the online master’s program was perfect for her to pursue an advanced degree in an area that truly interested her and was relevant to her career.

Currently, Hoffman works at McCormick & Co., Inc. as the director of global quality systems and food safety. At McCormick, she has been able to grow as a food safety professional as well as gain valuable experience working internationally and understanding the dynamics of working across cultures. She enjoys working to develop programs and solutions to address the ever-changing food safety and quality challenges that present themselves.

As Hoffman’s career continues to grow, she has learned and values the importance of work/life balance. She actively works to ensure balance between the two, as it is so important to take care of all aspects of yourself, not just your professional self. “The things we do outside of our ‘work self’ can help to grow and shape us as people just as much as the formal coaching and learning that we do in our day-to-day jobs,” Jill says.

What prompted the launch of a group that focuses on female professional development in the food safety sector?

Read the interview with Melody Ge, Technology Helps Your Food Safety Employees Work Smarter, Not HarderMelody Ge: I started this group because I received many questions from students about building their careers in food safety. I would love to help more, and I know my own experience is limited, so I wanted to leverage the knowledge of so many outstanding women out there. Hence, I formed this group with the hopes that it could be a resource to those who are seeking solutions in the industry.

Jacqueline Southee: I believe the food safety sector is growing exponentially with increasingly diverse requirements for a wider skill set, which needs to be communicated to young food scientists still making academic choices and building their proficiencies and talents. In addition, new opportunities are being created by this global industry that the next generation of food scientists need to be made aware of.

Jill Hoffman: I see this group as an opportunity to bring women together to share stories and challenges that have arisen throughout their careers. The group gives women an ability to learn how others have navigated both challenging and rewarding moments in their careers so that they can incorporate this awareness into their own journey. Additionally, this group will help with sharing the diverse opportunities in food safety. Everyone has a different road they’ve traveled to get to where they are today, and it’s important to share these stories as a testament to knowing that everyone doesn’t have to have traveled the same pathway in education or career experience to get into a role of ensuring food safety.

How do you see this group positioned in the future?

Ge: I would like to see this group sustain itself in the food safety industry and become a safe harbor for women to talk about their passions, experiences, challenges and learn from each other so ultimately, we all can be stronger in the industry together.

Southee: As the industry becomes more global, its success will depend on tech-savvy technologists and food scientists who have a wide range of skills, including in information science, regulations, quality management systems, economics, politics and climatology. The list is endless. We need to make sure the lines of communication are open, the opportunities are open to all and that we can help shepherd young women through.

Hoffman: I think there’s a flexible vision for the group to grow into a recognized forum for women to engage in at all points in their careers. The group will grow into an active space for sharing, learning and networking among food safety professionals and female students pursuing an interest in the field of food safety.

We can do this together!

Are you interested in helping the group? Although, it’s a female-focused group, we are open to all feedback, support, and partnership opportunities to grow this group together. We hope to hear from you. You can join the group, For Women, By Women in Food Safety or direct message Melody Ge on LinkedIn.

Currently, this is a LinkedIn group, and all committee members have joined voluntarily. However, with support from Food Safety Tech, we are planning on writing monthly columns for the publication, scheduling in-person meet ups at some of the industry conferences, and engaging in mentoring programs, webinars and more activities in the near future. We hope our visions can be achieved throughout the team efforts together.

Alec Senese, Bayer Crop Science, Digital Pest Management
Bug Bytes

Did You Know Some Rats Can Jump Up to Four Feet?

By Alec Senese
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Alec Senese, Bayer Crop Science, Digital Pest Management

Given this fact, you may need to look up as well as down. Did you know that a rodent’s teeth is strong enough to gnaw through cinderblock? Or that they are smart enough to memorize floor plans and solve puzzles, enabling them to find multiple entrances into a facility? Did you know that a female mouse starts reproducing at only six weeks of age and can have up to 180 babies a year? That means there are 180 opportunities per mouse in your facility or home to reproduce, contaminate, and damage your products and property.

Rodent trivia can range from fun and interesting to downright shocking. The fact of the matter is that rodents are strong, agile and smart animals. The intelligence of rats is often ranked among some of the smartest in the animal kingdom. Since rodents can carry over 35 different diseases that are harmful to humans, it is a good reminder for those in food safety that these small skilled creatures require vigilance in order to keep them from spreading pathogens across your facility.

Resources

  1. Carolina Pest Management. (October 14, 2016). “10 Fascinating (but Scary!) Facts About Rodents. Retrieved from https://www.carolinapest.com/10-fascinating-scary-facts-rodents/
  2. debugged. (December 20, 2011). “10 Amazing Facts about Rats”. Retrieved from https://www.rentokil.ie/blog/10-rat-facts/
FST Soapbox

How SQF Certification Can Be a Contract Manufacturer’s Greatest Advantage

By Steve Wise
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SQF certification validates a contract manufacturer’s ability to produce safe, consistent, and high-quality products. It’s a mark of distinction, which can lead to more business. But to obtain SQF certification, a manufacturer must have effective quality and safety controls.

Well-known food and beverage brands will often turn to contract manufacturers to produce the quality products that their customers expect and enjoy. With their brand names on the line, these brand owners need assurance that their suppliers can deliver safe and high-quality goods and mitigate the looming threat of recalls.

How do they know if they’re working with a reliable contract manufacturer? Well, many will look to see if they hold certifications from a reputable third-party organization, such as the Safe Quality Food Institute (SQFI). In fact, one in four companies today require that their suppliers have SQF certification, making it one of the most important certifications in contract manufacturing.

SQF certification demonstrates that a supplier has met benchmarked standards—set by the Global Food Safety Initiative (GFSI)—for upholding quality and controlling food safety risks. It’s a form of validation of an organization’s ability to consistently produce safe and high-quality products. Contract manufacturers that have SQF certification are more likely to win contracts and can bid for business on a national or global scale. Thus, it presents a clear competitive advantage to those certified in the various levels of SQF certification.

Certification Tiers
SQF is a three-level certification program, with each tier progressively more rigorous than the last.

  • Level 1: The SQF Safety Fundamentals Program is an introduction to food safety standards for small- to medium-sized food suppliers. Ideal for those with low-risk food products, the program doesn’t meet GFSI standards but establishes a foundation for doing so. Suppliers certified at this level typically sell their services to smaller, local purveyors.
  • Level 2: The SQF Food Safety Program follows GFSI-benchmarked food safety standards. It helps sites implement preventive food safety measures according to Hazard Analysis and Critical Control Points (HACCP) regulations, which ensure scientific analysis of microbiological, physical and chemical hazards are applied at each step of the supply chain. This level is ideal for businesses that would like to work with purveyors that require adherence to GFSI benchmarked standards.
  • Level 3: The SQF Food Safety and Quality Program shows an ability to not only contain safety risks through the HACCP system, but also monitor and control threats related to food quality. This highest level of certification is ideal for large-scale producers, manufacturers, food packaging facilities and distributors that have successfully deployed an SQF Food Safety Program and want to go above and beyond in their quality efforts.

While it’s the most demanding of the three, Level 3 certification is what most contract manufacturers should aspire to because it’s required by many of the world’s largest food and beverage brands. In order to attain this level of distinction, contract manufacturers need an effective way to demonstrably meet all GFSI benchmarked standards and readily access their quality data during an audit. This is where statistical process control (SPC) comes in.

The SPC Gamechanger

SPC is a proven methodology for monitoring and controlling quality during the manufacturing process. SPC enables manufacturers to chart real-time quality data against predefined control limits to identify unwanted trends and product or process variations. If there is an issue, timely alerts will notify responsible parties to take remedial action early on, preventing unsafe or poor-quality goods from entering the supply chain and triggering a recall. This establishes strong controls for food quality and safety in accordance with a Level 3 SQF Program. Audits also become a breeze, as all historical data are stored digitally in a centralized repository. Suppliers can thereby quickly and easily produce auditor-requested reports showing compliance with SQF requirements and GFSI standards.

Statistical process control, InfinityQS
Statistical process control (SPC) is a method for monitoring and controlling quality during the manufacturing process. Image courtesy of InfinityQS

But beyond quality monitoring and facilitating audits, SPC can deliver greater impact by providing suppliers with analytical tools useful for mining historical data for actionable insights. They can run comparative analyses of the performance of different lines, products, processes, or even sites, revealing where and how to further reduce risk, improve consistency, streamline operations, and lower production costs. In this way, SPC lends itself to a profit-positive business model—driving additional savings through process improvement while increasing new business opportunities through contracts won via SQF certification.

A Snacking Success

One contract manufacturer of savory and healthy snacks previously struggled with large variations in product quality. These inconsistencies often resulted in quality holds or process aborts that generated high waste and costs. By implementing SPC, the snack supplier was able to take advantage of a wide range of data—including incoming receiving tracking and quality inspection tracking—to finetune its production processes with effective controls for food quality and safety. In addition to a 30% reduction in customer complaints, SPC has helped the supplier realize a $1 million reduction in product waste and attain Level 3 SQF certification, the latter of which has generated continued new business from several well-known snack food brands.

This snack supplier is a clear example of SQF certification as a competitive differentiator. Working with such SQF-certified and SPC-powered contractors is important to food and beverage brands because they can protect their reputations and ensure continued customer retention by way of safe, consistent, high-quality products. Ultimately, it builds greater trust and integrity in the supply chain among companies and consumers alike.

Susanne Kuehne, Decernis
Food Fraud Quick Bites

Not Your Mother’s Meatloaf

By Susanne Kuehne
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Susanne Kuehne, Decernis
Food fraud, soy, minced beef
Find records of fraud such as those discussed in this column and more in the Food Fraud Database.
Image credit: Susanne Kuehne

Nearly 800 tons of minced meat worth more than $5.5 million was adulterated in a way where the meat was replaced with soy, beef fat, animal skin and starch. The meat was supplied from Poland and sold in France to charitable organizations like the Red Cross. The ingredients, which were of very low quality, did not pose a health risk, however, altered the taste and texture of the meat; an investigation is ongoing.

Resource

  1. Courrier Picard (June 7, 2019). “Du gras, de la peau, du soja… Tout sauf de la viande dans ces steacks livrés à des associations”.
Kevin Smedley, High Performance Systems
FST Soapbox

Importance of Flooring for Food Processing Plant Hygiene

By Kevin Smedley
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Kevin Smedley, High Performance Systems

Food processing is a multi-trillion dollar industry that encompasses facilities such as bakeries, meat and poultry plants, bottling lines, dairies, canneries and breweries. For all of these food processing plants a commercial flooring system is essential for maintaining a hygienic environment. Few areas of a plant provide as much opportunity for the spread of bacteria, mold, fungi and dust as the floor. Hazardous materials from a contaminated floor can easily be spread from worker’s shoes and mobile equipment. Food processing plants present a unique set of challenges that require careful consideration of floor properties and installation.

Food processing plants floors are subjected to constant, high concentrations of salt, alkaline and oil compounds that substantially degrade the floor and thereby risk food contamination and facility shutdown. These compounds can come from common food production by-products like oils, fats, dairy products, sugar solutions, blood, and natural acids or from harsh cleaners and disinfectants. Even with frequent and thorough cleaning these substances can—and will—result in microbial growth and the spread of bacteria in untreated concrete or poorly installed resinous flooring.

Food processing plant hygiene, flooring
A commercial flooring system is critical to maintaining a hygienic environment in a food processing plant. (Image courtesy of High Performance Systems)

Cleaning floors is an essential part of maintaining food processing operations to keep up with government standards. A proper floor coating is a necessity for dealing with the vigorous, harsh cleaning procedures that typically include very hot water and aggressive cleaning chemicals. Depending on the exposure to corrosive, temperature and moisture conditions a thin film coating may suffice; however, in most cases, a thick, durable floor coating is needed to endure the cleaning operations. If too thin of a coating is used the repeated barrage of high pressure, high-temperature hot water and steam will strip the floor coating. Only an experienced flooring professional can determine the proper floor coating for a facility.

In addition to the properties of the floor coating, proper installation is essential for maintaining a hygienic, safe facility. If a floor is not seamless even the best floor coatings are vulnerable to germ buildup within gaps and cracks. To prevent harmful substance accumulation, a seamless coving transition from the floor to the wall is needed. Not only does that make the floors unsanitary, but it also can spread to other parts of the facility, equipment and product. Coving also aids in the cleaning process by allowing for hosing around the sides and corners of the room where germ buildup is most common.

An often-overlooked—yet critical—aspect of floor installation is having the proper pitch to promote water drainage. Having pools of water is not only dangerous for workers but for product safety. Such an examples of this issue is the Listeria outbreak at cantaloupe producer Jensen Farms, which led to 33 fatalities, 143 hospitalized victims, and ultimately, the end of their business. In the 2011 FDA released a report that focused on “Factors Potentially Contributing to the Contamination of Fresh, Whole Cantaloupe Implicated in the Multi-State Listeria monocytogenes Foodborne Illness Outbreak”. The conclusion was reached that the leading cause of Listeria spreading was due to a poorly constructed packing facility floor that was difficult to clean and allowed water to pool. The best way to prevent a similar situation at your plant is to make sure you get an experienced flooring expert, who understands your facility’s needs, to choose a floor with the right properties and to properly install it.

Susanne Kuehne, Decernis
Food Fraud Quick Bites

In That Wine, There Is No Truth

By Susanne Kuehne
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Susanne Kuehne, Decernis
Wine, Decernis Food Fraud database
Find records of fraud such as those discussed in this column and more in the Food Fraud Database.
Image credit: Susanne Kuehne.

Booze bootleggers are still quite active since there is a lot of money exchanging hands in the high-end wine and liquor business. Fake premium Penfolds wines, which can fetch several hundred dollars per bottle, as well as acclaimed brands of adulterated whisky, were discovered and seized in a liquor store in Cambodia. Besides the fake beverages, the raid also uncovered fake labels and packaging materials.

Resource

  1. Australian Associated Press (November 28, 2019). “Fake Penfolds wine seized in raid on bootlegging operation in Cambodia”.The Guardian.

 

 

Susanne Kuehne, Decernis
Food Fraud Quick Bites

Oil Crisis, The 2019 Version

By Susanne Kuehne
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Susanne Kuehne, Decernis
Food fraud
Find records of fraud such as those discussed in this column and more in the Food Fraud Database.
Image credit: Susanne Kuehne.

In many parts of India, mustard oil is widely consumed as an edible oil and for ceremonial use, and is a target for adulterations for economic gain. In a test of 20 samples, 80% of the samples were adulterated. Adulterants, some of them hazardous to human health, often consist of cheaper oils such as palm or sesame seed oil, as well as added dyes or flavor components. Tests were made using TLC Chromatography, nitric acid test, azo dye test and other test methods.

Resource

Pandey, P., Mishra, M. and Kesharwani, L. (October 6, 2019). “Examination of Various Adulterants in non-branded Mustard Oil for Forensic Considerations”. Academic Journal of Forensic Science.

 

Brett Madden, Aviaway
Bug Bytes

Strategies and Building Design Improvements to Help Prevent Birds

By R. Brett Madden
1 Comment
Brett Madden, Aviaway

Bird droppings and nesting materials, if allowed to accumulate over time, can cause severe damage to building facades, ledges, loading docks, walkways, roofs and more. Building materials such as stone, wood and metal can be damaged due to the acidity of the bird droppings. And in extreme cases, a buildup of bird droppings can impact the structural integrity of a structure. Also, roof drains can become clogged, and fire hazards from packed nesting materials around electrical fixtures can develop. Not to mention all the possible diseases that can result from disturbing bird droppings! Rather than waiting until these bird problems develop and result in potentially expensive remediation, in most cases, it will be cheaper to consider bird prevention design elements beforehand—specifically, in the design-build stage (ideally) or the retrofit stage (alternatively).

Before we can review the building design elements, it is best to review the types of areas that birds prefer to land, roost and nest. This way, when considering a design element, considering the kinds of spaces they prefer to set up camp will make more sense.

  • 90-Degree Ledges
    • Building ledges
    • Decorative elements
    • Truck bay bumpers
  • Knee Walls (parapet ledges)
    • Typical construction around most commercial buildings
    • Roof structure types
    • Flat based surface areas
  • Covered Overhangs
    • Loading docks
    • Building canopies
    • Interior building structures
  • Roofing Equipment
    • Under HVAC units
    • Ductwork
    • Roof equipment
  • Water Sources
    • Retention ponds
    • Decorative fountains
    • Any water source (natural or otherwise)
  • Food Sources
    • Fruit trees
    • Trash removal
    • Container practices
    • Proximity to building
  • Light Fixtures and Electrical Items
    • These items provide warmth
    • These items provide elevated areas to survey area and avoid predators

In the design-build phase of the project, when we work with architects, we always recommend decreasing the number of 90-degree ledges or reducing the ledge depth surface area as much as possible. In those areas that we are not able to reduce or eliminate the ledge, we would recommend a landing-based deterrent product such as a bird spike, bird wire, ledge exclusion system or electrified shock-based bird control product. Each of these types of bird deterrent items has different pros and cons.

Bird spikes, Aviaway
Bird spikes (All images courtesy of Aviaway Bird Control Services & Consulting)

Bird Spikes

Bird spikes are a type of bird deterrent/and anti-roosting device that will make it hard for a bird to land on a leading ledge and close its wings as it walks onto the ledge surface. When a bird’s landing process is made more difficult, combined with a reduction of the surface landing area, the birds will be deterred from the leading ledge area. Most types of bird spikes have thin metal/plastic rods that are attached to a solid base that point in an upward direction. Bird spikes come in various widths depending upon the surface ledge width area. Bird spikes can be mounted to just about any ledge/surface. Bird spikes can be installed on numerous types of building ledge types and sizes. Bird spikes can be an effective deterrent on gutters, signs, rooflines, cameras, pipes, parapet/knee walls, and related building surfaces.

A con of using bird spikes is that bird spikes are primarily designed to deter larger birds like pigeons. Smaller birds such as sparrows or starlings will not be deterred with bird spikes. A smaller bird can move within and around the rods to use the rods to hold nesting materials within the strands of rods to hold their nesting materials within the bird spike to create a nest. Another con is that larger quantities of bird spikes are unappealing to the building aesthetics.

Bird wire

A bird wire system is a combination of stainless-steel posts that are either epoxied or tapped and drilled into the surface area (typically mortar lines/joints). After the stainless-steel post is mounted, a thin monofilament stainless steel wire is secured between the posts with a micro-spring. The wire is tensioned between the two posts. As pigeons or larger birds attempt to land on treated areas, they will not be able to close their wings and thus will be deterred from landing on treated areas.

A con of using bird wire is that it is typically only effective against larger birds.

Ledge exclusion
Ledge exclusion

Ledge Exclusion

The goal is to turn a 90-degree angle into a 45-degree angle. When you have a ledge that has a base landing area and a return wall area, this allows birds a great shelter area and an ability to survey surroundings. By creating a 45-degree angle, you take a bird’s ability to land and get a foothold and land on the surface. The product is effective for larger birds such as pigeons and smaller birds, too.

The only real con of the changing the ledge structure is matching the building finish. However, this is the best bird exclusion method that is effective against all bird species.

Shock Track

Shock track is a low-profile shock track system with a minimalist low profile, and virtually invisible solution to deter and prevent birds from landing, roosting or nesting on building ledge-based surfaces. The shock track system will deliver a mild/startling electric shock when the bird contacts the strip. Shock track systems are a great option when building/structural aesthetics are a key factor for the facility.

For larger areas such as loading docks, canopies, and related covered structures, netting is the main bird exclusion method.

A few cons for a shock system are that at times, you may have some arcing with heavy snow or water collection when connection area of the strips make contact, and this system is typically only effective against larger birds.

Bird netting
Bird netting

Bird Netting

Bird netting is an exclusion method of bird control. It is intended to be installed on buildings, loading docks, warehouses, airport hangers, transportation facilities, barns, food silos, over building exteriors, balconies, parking garages, rooftops, HVAC units, bridges, agricultural crop applications, ponds, and any other surface that netting hardware can be installed. Bird netting is the best method for excluding all pest bird types. Specifically, seagulls, pigeons, sparrows, starlings, and crows can all be excluded from bird netting.

Bird exclusion netting will prevent birds from gaining entry above any areas that are netted off. It excludes pest birds from roosting and nesting. There are various types of netting and mesh sizes. When selecting the type of netting and mesh size, it is critical to both the target pest bird and where the netting is being installed.

By far, bird netting the best bird exclusion method to control all bird species. The only con of bird netting is that depending upon the application, and the cost can be expensive.

In conclusion, when considering the design-build phase or a retrofit project, the aforesaid areas that are attractive to birds to land, roost and nest should be considered. In most cases, birds can be prevented with a bit of planning.

Remember to also consider surrounding areas (proximity of birds), acceptable pest bird threshold levels, reducing all food and water sources, and closing off all possible entry points. The goal is to not only prevent the birds from setting up shop on the building, but we want to try to keep them an acceptable distance away, too.