Food safety isn’t something auditors take lightly. In many food facilities, even a single fly can trigger a major non-conformity.
In our previous article, we learned the riskiest pest for facility managers. This time, we’re focusing on a pest that often gets underestimated, but can seriously affect your audit results if it isn’t managed properly.
This article explains why fly infestation is a food safety issue, and how food facilities can prevent non-conformities using a risk-based approach.
Key Takeaways
- Fly infestation a major audit risk to your operations. In BRCGS Issue 9 and other food safety standards, fly activity in production is a serious red flag in operational excellence because flies can contaminate product and surfaces just by landing.
- Food safety auditors read trends. Even if flies are being caught, a consistent or increasing number of catches signals loss of control, which can trigger deeper investigation and potential non-conformities.
- Your pest control provider can make or break compliance. Auditors will check technician qualifications, licensing, chemical approvals, and whether the provider relies on prevention and IPM instead of just spraying treatment.
BRCGS Food Safety Global Standard and Why It Matters in Your Operations
The BRCGS Food Safety Global Standard is one of the most widely recognized food safety certifications. For Philippine food manufacturers, it is necessary if you plan to export products, supply multinational brands, or work with large international retailers.
BRCGS certification opens doors to scalable growth, but also comes with strict expectations. Auditors assess not only product safety, but also how well your facility controls risks that could compromise food safety, especially those that repeatedly show up during inspections.
In the latest issue, Global Standard for Food Safety Issue 9, pest management remains one of the most common sources of major non-conformities. Any evidence of a current or past pest issue is treated as a serious breakdown in food safety controls.
A major non-conformity carries weight for food production, leading to delayed certification, mandatory corrective actions, and a follow-up audit. For many facilities, that is both financial and operational disruption.
Fly Infestation is a Food Safety Risk in Your Facility
Now here’s where flies come into the picture.
As mentioned in our last blog, all pest types and sizes are high risk and should never be near production lines. However, auditors are especially sensitive to fly infestation because flies can contaminate product and food-contact surfaces simply by landing on them.
Moreover, even if flies are caught in traps, auditors will still look at trends. If the number of catches stays consistent or increases over time, it signals a loss of control.
That’s how seriously fly activity is treated in food safety audits.
The Lifecycle of Flies is Filthy By Nature
Once you understand where flies come from, it becomes clear why auditors are extremely sensitive to them.
Flies are mobile contamination risks. A study has shown that flies can carry and transfer over 116 pathogens, many of which are linked to gastrointestinal diseases such as stomach cancer.
Their entire life cycle revolves around unsanitary environments. Eggs are laid in waste, drains, decaying organic matter, and animal carcasses.
Maggots feed on these materials before developing into adult flies. By the time they enter food facilities, they already carry contamination risks on their bodies and inside their digestive systems.
This is exactly why flies are treated with zero tolerance in production and high-care areas.
Why Food Processing Facilities Struggle to Control Flies
Fly control is difficult for one main reason: they reproduce extremely fast.
Flies can complete their life cycle in as little as a week, and in warm environments here in the Philippines, this can happen even faster.
With plenty of opportunities to enter a facility, and abundant food and water sources inside, flies only need a small opening to become a recurring problem.
To make it harder, treatment options are limited. Because consumables are involved in your production, spraying and fogging inside processing areas are not allowed, or only allowed under very strict limitations.
This adds another layer of complexity for food facilities that must remain compliant with food safety standards.
What Auditors Expect in Your Fly Control Program
Auditors expect more than service reports. They want to see a complete fly management system that’s built for risk-based preventive strategies.
You can have a thick file of paperwork, but no corrective actions. Or have a pest control provider show up on schedule, but has limited understanding of pest behavior in high-care environments.
1. Fully Documented Pest Management Program
Auditors look for the following:
- A well-documented pest management procedure
- A site-specific pest risk assessment
- Clear responsibilities for both the facility and the provider
- Records proving the program is actively managed
Documentation is more than paperwork. Trend analysis records and corrective action reports show that the site is tracking fly activity, responding when levels increase, and fixing root causes instead of applying short-term treatments.
2. Site Risk Assessment
Auditors evaluate the bigger picture that drives pest pressure. This includes the types of raw materials you handle, whether your processing is open or closed, how well moisture and drainage are controlled, and what surrounds the facility that could attract flies and other pests.
A strong risk assessment translate into what auditors can verify on the floor. That means insect light traps are placed correctly based on risk zones, monitoring devices are clean and working, trend records show activity over time, and corrective actions are documented and implemented when pest activity increases.
3. A Competent and Approved Pest Control Provider
This is the part that ties everything together. Even the best internal program can fail if the pest control provider is not qualified for food manufacturing. Auditors commonly ask who your provider is, whether technicians are trained and licensed, and whether the chemicals being used are approved for food sites.
Facilities should be ready to present technician training records, valid licenses, and complete SDS or MSDS documentation for every chemical used on-site. More importantly, they should be able to prove that all products applied are approved for use in food manufacturing environments.
A competent provider also won’t rely on “just treatment” as the main strategy. In food plants, effective fly control is built on layered prevention and a risk-based approach. IPM only works when exclusion, sanitation, monitoring, and targeted control operate as one coordinated system.
This is what separates risk-based expertise from typical servicing. The provider knows where the highest risks are and what actions will reduce the risk long-term instead of temporary relief.
Prevent Major Non-Conformities With A Trusted Partner
Food safety is a high-pressure responsibility. For facility managers, even one fly near a production line can result in audit findings or certification risk.
ENTECH provides risk-based pest management programs built specifically for food manufacturing environments. Our approach focuses on prevention, so your facility stays compliant not only during audits, but every day operations.
If you want to strengthen your audit readiness and prevent fly-related non-conformities, reach out to learn more about our risk-based pest management services.
In the last part of this audit-preparedness series, we will cover cockroach infestation and how to manage it effectively in food processing facilities.
FAQs
What is the BRCGS Global Standard for Food Safety?
The BRCGS Global Standard for Food Safety is an internationally recognized certification standard used to assess whether a food manufacturer has effective systems in place to consistently produce safe, legal, and quality products.
It covers key areas such as HACCP, hygiene, sanitation, pest management, traceability, facility design, and supplier controls. Achieving certification shows that a facility operates with structured, documented, and verifiable food safety controls.
It is widely used by exporters, multinational brands, and large retailers as proof that a site meets global food safety expectations.
What does major non-conformity mean?
A major non-conformity is a serious audit finding that shows a breakdown in your food safety system. It means a control that should prevent contamination is either missing, not working, or not consistently implemented.
In BRCGS audits, major non-conformities usually require corrective action, evidence of fixes, and in many cases a follow-up audit before certification can proceed.
Why are flies treated as a major food safety issue during audits?
Flies are considered a high-risk pest because they can transfer contamination simply by landing on food, packaging, or food-contact surfaces. Their breeding and feeding habits involve unsanitary sources such as drains, waste, and decaying organic matter, which means they can carry pathogens into production areas.
In BRCGS and other food safety audits, even a single fly in a sensitive zone can be treated as evidence of loss of control and repeated or increasing fly activity can lead to a major non-conformity.