Commercial kitchen ventilation and extraction requirements in the UK
Food premises need adequate ventilation. In a commercial kitchen, the practical food-safety objective is to control heat, steam, grease, fumes and condensation without creating airflow that increases contamination risk. The right system depends on the premises, equipment and cooking operation.
Practical guidance from TKEG (The Kitchen Efficiency Group), built around everyday UK hospitality compliance and kitchen operations.
What is the food-hygiene requirement?
Food Standards Agency guidance says food-business premises must have adequate ventilation. The premises should also be designed and maintained so that good hygiene practices can be followed and contamination is controlled.
There is not one extraction specification that suits every restaurant, pub, hotel or production kitchen. The system needs to be appropriate for the cooking equipment, output, room layout and risks.
Ventilation should support a hygienic kitchen
Poor ventilation can contribute to excessive heat, steam, grease deposits, condensation and deterioration of surfaces. These conditions can make cleaning harder and can undermine the condition of the premises.
Avoid airflow from contaminated areas towards clean areas
Ventilation should not create an avoidable contamination route. Food-hygiene requirements specifically recognise the need to avoid mechanical airflow from contaminated areas towards clean areas.
Kitchen layout, extraction and make-up air should therefore be considered together, particularly where raw and ready-to-eat activities take place in different areas.
Can condensation become a food-safety problem?
Yes. Condensation above food, preparation surfaces or clean equipment can become a contamination risk. Repeated condensation can also contribute to mould, damaged finishes and surfaces that become difficult to keep hygienic.
If condensation is recurring, simply wiping it away is not a complete solution. Investigate ventilation performance, steam generation, room temperature, building fabric and equipment use.
Extraction filters and canopies need cleaning
Grease filters, canopies and accessible extraction components should be kept sufficiently clean and maintained so that the system can operate effectively and does not become a source of contamination.
Cleaning frequency should be based on the actual operation rather than an invented universal interval. A high-output frying kitchen may need a different regime from a low-volume operation. Follow equipment and specialist instructions where applicable.
What if the extraction system is damaged or not working?
Assess the effect on food safety and whether cooking can continue safely. Heavy smoke, steam, uncontrolled condensation or grease contamination may mean particular equipment or processes should stop until control is restored.
Record significant defects and corrective action. Repeated failures should feed into the premises maintenance programme rather than being treated as isolated cleaning issues.
Ventilation is also part of premises condition
Food hygiene ratings consider the cleanliness and physical condition of facilities and the building, which includes whether the layout and facilities allow good food hygiene. Ventilation can therefore matter during inspection as part of the overall condition and suitability of the premises.
Separate requirements can also apply to workplace safety, fire safety, gas appliances, planning and building control. This guide focuses on food hygiene and should not be treated as a ventilation-system design specification.
Useful ventilation and extraction records
There is no need to create paperwork for its own sake. Records are useful where they demonstrate that an important control is actually being managed.
Practical guidance, checked against official UK sources.
TKEG guidance is written for practical hospitality use. Where a topic involves regulation, official schemes or workplace safety, businesses should also consult the current guidance from the relevant authority and apply it to their own operation.
TKEG is independent and is not affiliated with or endorsed by the Food Standards Agency, HSE or a local authority. Official guidance and legal requirements take precedence where applicable.
Put the guidance through a practical check
Use our free interactive tools to assess inspection readiness, generate a tailored checklist, check temperatures, review training needs, test allergen and COSHH controls, or review your HACCP-based food-safety management system.
Food Hygiene Rating Readiness Checker
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Use free tool →Commercial Kitchen Compliance Checklist Generator
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Use free tool →Commercial Kitchen Temperature Safety Checker
Compare chilled, hot-holding, cooking and reheating readings with common UK reference points.
Use free tool →Food Hygiene Training Requirements Checker
Check the training, instruction and supervision appropriate to different hospitality roles.
Use free tool →Allergen Compliance Self-Check
Review allergen information, staff procedures, cross-contact controls and PPDS labelling.
Use free tool →COSHH Compliance Self-Check
Review hazardous substances, COSHH assessments, storage, dilution, PPE, training and emergency controls.
Use free tool →HACCP & Food Safety Management Self-Check
Review hazards, controls, monitoring, corrective actions, verification, records and staff understanding.
Use free tool →Explore the main UK kitchen compliance topics
Move between the core topic hubs to understand how food-safety records and controls connect.
Continue with closely related guidance
Related TKEG software and workflows
TKEG helps hospitality teams record, manage and evidence many of the day-to-day controls covered in our guides.
Common questions
Does every commercial kitchen legally need an extraction canopy?
Food premises need adequate ventilation, but the appropriate system depends on the premises and operation. Whether a particular canopy or mechanical extraction design is required depends on factors including the cooking equipment, building and other applicable requirements.
Is there a legal frequency for cleaning kitchen extraction filters?
There is no single food-hygiene cleaning interval that applies to every commercial kitchen. Cleaning should be frequent enough to keep the system hygienic and effective, taking account of use and relevant manufacturer or specialist instructions.
Can condensation affect a food hygiene inspection?
Yes. Condensation can indicate problems with ventilation or premises condition and can create a contamination risk, particularly where it forms above exposed food, clean equipment or preparation areas.
Should a broken extraction system stop service?
It depends on the effect of the failure. The business should assess whether heat, steam, smoke, grease or condensation can still be controlled safely and restrict or stop affected processes where safe operation cannot be maintained.
Turn the paperwork into a working system.
TKEG brings food-safety records, compliance evidence and kitchen management together.