What Is TR19 Grease Cleaning?

If you operate a commercial kitchen in the UK — whether a restaurant, pub, hotel, takeaway, school canteen or care home kitchen — you are likely to have heard the term TR19. But what does it actually mean, and why does it matter for your business?

What Is TR19?

TR19 is the title of a guidance document produced by BESA, the Building Engineering Services Association. Its full title is *TR19 Grease — Guide to Good Practice: Fire Risk Management of Grease Accumulation within Kitchen Extract Systems.* This document sets out the industry standard for the hygiene and maintenance of commercial kitchen ventilation systems in the United Kingdom.

The guidance covers how kitchen extract systems should be cleaned, how often they should be cleaned, the methods and standards that should be applied, and what documentation should be produced. It is not legislation in its own right, but it has become the reference document used by insurers, fire safety officers, environmental health officers and commercial property managers when assessing whether a kitchen extract system is adequately maintained.

What Does TR19 Actually Cover?

TR19 addresses the full extract pathway — from the canopy and baffle filters at the point of extraction, through the ductwork that carries contaminated air away from the cooking area, to the fan and the discharge point. This is important because many commercial kitchens focus cleaning efforts on the visible canopy and filters while neglecting the ductwork behind — which is where grease accumulation creates the most significant fire risk.

The guidance covers:

Cleaning frequencies — TR19 defines three tiers of kitchen use and recommends corresponding cleaning frequencies: - Heavy use (high-volume fryers, chargrills, solid fuel cooking): quarterly cleaning - Moderate use: six-monthly cleaning - Light use: annual cleaning

Cleaning methods — TR19 describes the appropriate methods for different parts of the extract system, including chemical degreasers, mechanical cleaning tools and pressure washing techniques for suitable duct types.

Access requirements — The document specifies the access panel positions required along duct runs to enable thorough cleaning throughout the ductwork system.

Post-clean reporting — After a TR19-focused clean, a post-clean report should be produced confirming the scope of work completed, the grease levels found before and after cleaning, and the recommended interval until the next service.

Grease thickness measurement — TR19 includes guidance on measuring grease deposits within ductwork. Where deposits exceed defined thresholds, more frequent cleaning is required.

Why Does TR19 Matter for Commercial Kitchens?

Insurance requirements

This is perhaps the most practically significant reason TR19 matters for most food businesses today. Many commercial property insurers now specifically reference TR19-compliant cleaning within their policy terms. In simple terms, if your kitchen extract system has not been professionally cleaned to TR19 standards and properly documented, you may find yourself in a difficult position when making a claim following a fire.

Even policies that do not explicitly name TR19 may require evidence that extract systems have been *regularly and professionally maintained.* Without a post-clean certificate from a competent cleaning contractor covering the full extract system, demonstrating this can be very difficult.

Fire safety obligations

Commercial kitchens have clear obligations under fire safety legislation to manage fire risks within their premises. Grease accumulation in kitchen extract systems is a recognised and significant fire risk. A post-clean report from a professional contractor demonstrates that you have taken appropriate steps to manage this risk. In the event of a fire safety inspection or incident investigation, this documentation is important evidence.

Environmental health and food safety

Environmental health officers (EHOs) inspecting commercial kitchens as part of food hygiene enforcement may review maintenance records as part of a broader assessment of the kitchen's management standards. A kitchen that cannot demonstrate evidence of regular extract system maintenance may attract closer scrutiny.

What a TR19-Focused Clean Involves

A genuine TR19-focused clean is more than a quick canopy wipe. It requires a competent contractor to clean the full extract pathway — canopy, filters, ductwork and fan — using appropriate tools, chemicals and PPE. The contractor should produce a post-clean report confirming what was cleaned, the condition found, and the recommended next service interval.

This documentation is your evidence of compliance. It should be kept on file alongside your other maintenance records, fire risk assessment and insurance documents.

How to Get a TR19-Focused Clean for Your Pembrokeshire Kitchen

We arrange enquiries for TR19-focused kitchen extract cleaning across Pembrokeshire and West Wales, connecting food businesses with specialist providers who understand the documentation, cleaning methods and scope required.

To arrange a quote, contact us with your kitchen details — including premises type, cooking equipment, approximate canopy size and the date of your last professional clean. We'll connect you with a specialist provider and help you get the documentation your business needs.

*This article is intended as general guidance only. Specific compliance requirements depend on your insurance policy terms, local authority requirements and individual business circumstances. Always seek advice from a competent contractor and consult your insurer regarding their specific requirements.*