Guide - TR19 Grease - UK-Wide
Fish and chips, fried chicken, kebabs - continuous frying through long late hours makes takeaways one of the highest-grease kitchens there is. Here is why they clean so often, and what catches them out.
The short answer
Fish and chip shops, chicken and kebab houses, burger and fried-chicken units - these are among the highest-grease kitchens there are. Continuous frying through long, late hours puts grease into the system quickly, so takeaway extract cleaning sits at the frequent end of the scale:
A takeaway can reach the point where the whole system is due a clean far sooner than a sit-down kitchen of the same size, simply because the fryers barely stop.
Why so fast
Deep-frying is the highest-grease cooking method, and a takeaway does little else. Every basket of chips, every piece of battered fish, every tray of fried chicken sends fat into the air that the canopy draws into the duct. Three things compound it:
The result is a system that, measured honestly, frequently needs cleaning every one to three months rather than the once or twice a year a lighter kitchen might manage.
Access and insurance
Beyond frequency, two practical issues come up again and again in takeaway kitchens. The first is access. Small premises in a parade of shops often have the fan on a flat roof above neighbouring units and a duct that turns sharply through a tight space. Without access panels, a chunk of that run cannot be reached, which means a partial clean and a duct stretch quietly accumulating grease. Fitting access so the whole system can be cleaned is usually money well spent.
The second is insurance scrutiny. Insurers know takeaways are high-fire-risk premises, and a fried-food unit with no current cleaning certificate is exactly the kind of risk that gets questioned at renewal or disputed after a fire. A grease fire on an overdue system, with nothing to show it was being managed, is a claim in trouble. Cleaning to the measured interval and holding the certificate is the straightforward defence.
Why it matters
It is no coincidence that fried-food premises feature heavily in commercial kitchen fire statistics. The combination of hot oil at the cookline and grease in the duct above it is the core fire scenario, and a takeaway runs it harder and longer than almost any other kind of kitchen. The whole point of a tight cleaning interval here is to keep the duct from becoming the fuel that turns a fryer flare into a fire that spreads.
The right approach is a measured one: survey the load, set an interval that reflects how relentlessly the fryers run, fit access so the whole system can actually be cleaned, and keep to it. It is a modest, regular cost against a serious, well-documented risk - and the certificate keeps your insurance honest.
Questions
Often every one to three months. Continuous deep-frying through long hours loads grease far faster than a sit-down kitchen, so a takeaway typically reaches the point where the whole system is due a clean much sooner. A survey sets the exact interval from the measured load.
The opposite, usually. A short, compact system has less ductwork to absorb the grease, so it concentrates and shows quickly at the fan. Short runs do not mean light loads when the fryers barely stop.
Almost always missing access. Takeaway ducts often turn sharply across a flat roof above neighbouring units, and without access panels parts cannot be reached. Fitting access lets the whole system be cleaned properly rather than leaving a sealed stretch to accumulate grease.
Insurers treat fried-food premises as high fire risk. Many require cleaning at the TR19 risk-based frequency and ask for a current certificate. A grease fire on an overdue system with nothing to show it was managed is exactly the situation that puts a claim in doubt.
Yes. We work overnight or in the early hours at no extra charge for out-of-hours work, so a tight cleaning interval never costs you a busy evening.
Phoenix Duct Clean · by the numbers
Takeaways load grease fast and need a tight schedule. We survey, set the interval and clean the whole system to TR19 Grease overnight. No-obligation quote, UK-wide.