Cooking, extraction and back-of-house risk

Commercial kitchen fire risk assessment

A commercial kitchen assessment must follow how heat, fuel, grease, extraction, people and the building interact—not stop at the visible cooking appliances.

Reviewed: 5 August 2026Guidance: EnglandEnquiries: London and Surrey

Direct answer

What should a commercial kitchen FRA cover?

The fire risk assessment should cover the kitchen as part of the whole premises and operation. It must identify how fire could start, grow and spread; who could be harmed; and whether prevention, warning, escape, firefighting and management arrangements are adequate.

Short answer

What should a commercial kitchen FRA cover?

The fire risk assessment should cover the kitchen as part of the whole premises and operation. It must identify how fire could start, grow and spread; who could be harmed; and whether prevention, warning, escape, firefighting and management arrangements are adequate.

This applies across restaurant, hotel, pub, banqueting, production, delivery and temporary event kitchens. The appropriate scope changes with the equipment, fuel, throughput, building and people at risk.

01

Cooking line

Open flames, hot oil, heated surfaces, controls, clearances and operator practices.

02

Extraction route

Canopy, filters, plenums, ducts, fans, access panels, fire-resisting penetrations and discharge.

03

Fuel and power

Gas, LPG, electricity, solid fuel, isolation, ventilation and emergency shutdown.

04

People and escape

Kitchen staff, agency workers, contractors, customers, sleeping guests and shared escape routes.

05

Building protection

Separation, fire doors, ceilings, service openings, alarms, lighting and firefighting equipment.

06

Management evidence

Cleaning, maintenance, training, opening checks, defects, incidents and action closure.

Do not confuse the documents

FRA, food safety, DSEAR and servicing records

Several assessments and certificates may exist for the same kitchen. Each has a different purpose, and a competent FRA should use relevant evidence without pretending that one document covers every duty.

Document or evidenceWhat it contributesWhat it does not replace
Fire risk assessmentLife-safety evaluation of fire hazards, people, precautions and management across the premises.Gas, electrical, extraction or suppression specialist inspection and design.
Food-safety system or HACCPControl of food-safety hazards and operational hygiene.The premises fire risk assessment.
DSEAR assessmentDangerous substances and explosive-atmosphere risk where the regulations apply.The wider FRA, although findings must be coordinated.
Gas and electrical evidenceCondition, maintenance or safety information for the relevant installations and equipment.Judgement about escape, fire spread, people and the complete premises.
Extraction cleaning recordEvidence of the identified system, cleaning scope and condition at that time.Assessment of fire spread, access, fire stopping or the wider operation.
Insurer or suppression surveyRisk-control or policy information and specialist system evidence.The responsible person’s Fire Safety Order duties.

Hazard pathway 01

Cooking, hot oil, gas, LPG and solid fuel

High temperatures and combustible cooking media can turn a small failure into a rapidly developing fire. The assessment should consider normal service, cleaning, shutdown, maintenance, loss of ventilation and foreseeable misuse.

  • Identify every cooking method, appliance and fuel source
  • Check clearances from packaging, cloths, oils, decoration and storage
  • Confirm safe, accessible isolation for gas, LPG and electrical supplies
  • Control portable or spare LPG cylinders and coordinate any DSEAR implications
  • Review fryer thermostats, maintenance, oil condition and safe operating practices
  • For charcoal, wood-fired and tandoor equipment, assess ventilation, carbon monoxide, ash and fuel storage
  • Control hot work and maintenance that could ignite grease or hidden combustible material
  • Train staff in shutdown, alarm raising, evacuation and safe limits of first-aid firefighting

Hazard pathway 02

Follow fire through the extraction system

Visible filters are only the beginning of the route. A grease-laden duct can carry fire through concealed voids, upper floors, neighbouring premises or the roof, especially where access, cleaning or fire-resisting construction is inadequate.

  • Identify the complete canopy, plenum, duct, fan and discharge route
  • Confirm access panels permit inspection and cleaning of the full relevant system
  • Check cleaning frequency against cooking type, volume and grease accumulation
  • Retain reports that identify the system and what was actually inspected and cleaned
  • Check duct penetrations and enclosure where the route crosses fire-resisting walls or floors
  • Consider deposits, damage, leakage, concealed combustible materials and rooftop conditions
  • Review shutdown or interlock behaviour and how staff respond to a fire
  • Record limitations and refer uncertain construction or inaccessible ducts for specialist investigation

Protection decisions

Suppression, extinguishers and fire blankets

Automatic kitchen suppression can materially reduce risk for some cooking lines, but it is not automatically required in every commercial kitchen. The need can arise from the assessed risk, building design, insurer requirements, lease or other conditions.

Where suppression is installed, its nozzles, detection, manual controls, shutdown interfaces, coverage and maintenance should match the current appliance layout. Moving or replacing equipment can make an existing design ineffective.

  • Confirm that firefighting media matches cooking-oil, electrical and other hazards
  • Keep equipment accessible without requiring a person to approach an unsafe fire
  • Check that fire blankets are suitable, visible and not treated as a reason to take risks
  • Maintain suppression and portable equipment through competent providers
  • Train relevant staff on raising the alarm, isolating equipment and evacuating
  • Review suppression coverage after any change to the cooking line

Whole-premises consequence

Protect escape routes and adjoining uses

The kitchen cannot be assessed in isolation. Fire and smoke may affect dining areas, basements, bedrooms, flats above, common stairs or adjoining businesses. Warning and escape arrangements must work for everyone who could be affected.

  • Check fire separation around the kitchen and any protected escape route
  • Inspect relevant fire doors for closing, damage and obvious installation defects
  • Confirm alarm detection and audibility in hot, noisy and enclosed areas
  • Test escape under peak staffing, deliveries, queues and waste-handling conditions
  • Coordinate shared alarms, stairs, utilities and emergency arrangements with other responsible persons
  • Plan for disabled people, lone workers, agency staff and contractors
  • Keep final exits and external routes clear of waste, cylinders and deliveries

Evidence and review

Records that make the assessment more reliable

Good evidence allows the assessor to distinguish a controlled hazard from an unsupported assumption. Records should show defects and remedial work as well as routine attendance dates.

  • Cooking-equipment installation, maintenance and repair history
  • Gas, LPG and electrical inspection or servicing evidence
  • Extraction inspection and cleaning reports with identified scope
  • Suppression design, commissioning, alterations and servicing records
  • Alarm, lighting, fire-door and extinguisher records
  • Training, drills, opening and closing checks
  • Fires, flare-ups, false alarms, carbon-monoxide events and near misses
  • Completed actions, interim controls and planned changes

Continue from this guide

Connect the detail to the whole premises

The complete assessment must follow the building, operation and people at risk. Use the main premises guide for scope and costs, or explore the hospitality collection where several uses overlap.

01Restaurant and café FRA02Hospitality FRA hub03Check assessor competence04Request assessment support

Frequently asked questions

Commercial kitchen FRA FAQs

Answers reflect current guidance for premises in England and should be applied to the facts of the building and event or operation.

Does a commercial kitchen need its own fire risk assessment?

The kitchen must be properly covered within the premises FRA. A separate specialist document may help where the kitchen is complex, but it must connect to escape, warning, construction and management across the whole premises.

Is automatic kitchen suppression legally required?

Not universally for every commercial kitchen. Need depends on the risk, equipment, building design and any insurer, lease or other applicable conditions. Installed systems must remain suitable and maintained.

How often should commercial kitchen extraction be cleaned?

There is no one interval for every operation. Cleaning should be risk-based, reflecting cooking methods, operating hours, grease accumulation, manufacturer and competent advice, plus relevant insurer requirements.

Does an extraction-cleaning certificate prove the system is fire safe?

No. It is evidence of the stated work at a point in time. Check which parts were accessed and cleaned, remaining defects, duct routes, penetrations and how the system affects fire spread.

Does a gas-safety certificate replace the FRA?

No. Gas evidence informs part of the assessment but does not evaluate all ignition sources, people at risk, escape, warning, construction or management.

When does DSEAR apply in a commercial kitchen?

DSEAR applies where dangerous substances can create risks to people from fire, explosion or similar energy-releasing events. LPG, flammable products or processes may require specific consideration; competent advice should define the scope.

Can water be used on a fryer fire?

No. Water can cause burning oil or fat to spread violently. The assessment should specify suitable equipment and staff response, with alarm, evacuation and calling the fire service prioritised.

Do solid-fuel appliances add different risks?

Yes. Charcoal, wood-fired and tandoor appliances can add carbon-monoxide, ventilation, ash, fuel-storage and continuous heat risks as well as extraction and fire-spread concerns.

Who is responsible for a kitchen inside a rented building?

The operator commonly controls cooking and staff, while a landlord may control structure, common routes and shared systems. There can be several responsible persons who must cooperate and coordinate.

When should the kitchen FRA be reviewed?

Review regularly and promptly after changes to cooking, fuel, equipment, extraction, suppression, layout, output, occupancy or the building, and after an incident, defect or new information affects validity.

Professional support

Request a commercial kitchen fire risk assessment quote

Tell us what kind of kitchen you operate and where it is. We can ask about the cooking line, fuel, extraction, building and current records when we call.

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Sources and limitations

Guidance reviewed 5 August 2026

This page provides general information for England. It is not legal advice, a site-specific fire risk assessment or specialist inspection of a kitchen, structure, installation or event.