What’s included in a TR19 Kitchen Extract Clean? A Technician’s inside View

 When it comes to commercial kitchen hygiene, few procedures are as essential—and as misunderstood—as TR19 Kitchen Extract Cleaning. As a professional technician at Provent Compliance, I’ve had firsthand experience inside countless duct systems, witnessing everything from pristine setups to dangerously neglected systems. The TR19 standard isn't just a guideline; it's a necessity to ensure fire safety, operational efficiency, and regulatory compliance in commercial kitchens. In this article, I’ll walk you through what’s actually involved in a TR19 kitchen extract clean—from the initial inspection to the final report—giving you a technician’s view from the inside out.

Understanding the Importance of TR19 Standards

Before diving into the actual process, it's essential to grasp why the TR19 standard matters. Developed by the Building Engineering Services Association (BESA), TR19 provides a code of practice for cleaning ventilation systems. For commercial kitchens, this means mandatory cleaning of grease extraction systems to prevent fire hazards. Grease build-up in extraction systems is one of the leading causes of kitchen fires in the UK. A compliant TR19 clean not only protects your business and staff but also ensures your insurance policy remains valid.

Initial Site Assessment and Risk Evaluation

Every TR19 cleaning job starts with a detailed site inspection. This isn’t just about peeking into a duct; it’s a systematic review of the entire extraction system, including canopies, filters, ductwork, and fans. As a technician, I check the accessibility of the system—how many access panels are present and whether more need to be installed. I also evaluate the level of grease build-up using industry tools like a depth gauge or surface wipe test. Risk is also assessed at this stage. For instance, if the ducting runs above critical areas like food storage or customer spaces, it elevates the fire risk and urgency for cleaning.

Planning the Cleaning Process

Once the inspection is complete, a detailed plan is created. This includes scheduling the clean during non-operational hours to avoid disruption, securing safe access to all parts of the system, and ensuring proper PPE and cleaning agents are used. We prepare a method statement and risk assessment (RAMS) document, which outlines how the work will be done safely and efficiently.

Cleaning the Canopy and Filters

The cleaning begins at the most visible part of the system—the canopy and filters. These are often the greasiest components due to their constant exposure to cooking vapours. We start by removing and soaking the filters in a specially formulated degreasing solution. The canopy interior is manually scrubbed to remove layers of stubborn grease. This might seem like a straightforward task, but years of accumulation can form a hard, tar-like substance that requires more than just elbow grease.

Deep Cleaning the Ductwork

This is where the real work begins. The ductwork is often hidden behind ceilings and walls, making it the most neglected—and most hazardous—part of the extraction system. We gain access through existing panels or install new ones if necessary. The interior is cleaned using a combination of manual scraping, rotary brush systems, and vacuum extraction to ensure all grease deposits are removed.

Fan Unit and Discharge Point Cleaning

The fan unit is the heart of the extraction system and must be cleaned with precision. Grease can accumulate on fan blades, reducing efficiency and increasing the risk of mechanical failure or fire. We isolate and power down the unit before carefully removing grease using non-corrosive cleaning agents. The surrounding casing and motor housing are also cleaned. Once done, the fan is tested to ensure its operating correctly.

Final Inspection and Verification

Once the cleaning is complete, we perform a full post-clean inspection. This includes visual checks, grease thickness measurements, and photographic documentation of before-and-after conditions. This step ensures the work meets the TR19 benchmark. If certain areas couldn’t be accessed or fully cleaned, we document this clearly and recommend steps for improvement, such as additional access panels. At Provent Compliance, we take verification seriously. It’s not just about ticking a box—it’s about guaranteeing the safety and hygiene of your commercial kitchen.

Ongoing Maintenance and Scheduling

A TR19 clean isn’t a one-time event; it’s part of an ongoing maintenance plan. Based on cooking volume, system layout, and inspection results, we help clients set up a cleaning schedule—usually ranging from every 3 months for high-usage kitchens to every 12 months for smaller setups. Sticking to this schedule not only keeps you compliant but ensures your kitchen operates at peak efficiency. Fans last longer, energy costs drop, and fire risk is dramatically reduced.

Final Thoughts

From a technician’s perspective, a TR19 clean is far more than a surface wipe-down. It’s a critical, detailed, and often complex process that directly impacts the safety and success of your kitchen operation. It requires technical knowledge, the right equipment, and a meticulous approach to meet industry standards. If you're looking for professional support, Provent Compliance offers comprehensive TR19 Kitchen Extract Cleaning services, performed by certified technicians who understand both the standards and the stakes. Our goal is not just to clean, but to protect your kitchen, your team, and your business.