Kitchen Canopy and Exhaust Cleaning: Managing Grease Fire Risk
Grease can accumulate beyond the visible canopy, including in the plenum, exhaust ductwork and fan. Managing those deposits is an important part of commercial kitchen maintenance.
Why hidden deposits matter
Grease is combustible. Accumulated deposits can contribute to fire spread through an exhaust path if ignited. This guide does not assign an unsupported fire-spread percentage or temperature; the practical priority is inspecting and cleaning the actual system.
Do not stop at the filters
A clean canopy does not prove that hidden ductwork has been cleaned. Review the plenum behind the filters, duct runs, bends, fan and discharge point within the agreed scope. Inaccessible sections should be identified, not silently omitted. Clean Air Filtration can supply and install duct access hatches where required, with placement and suitability assessed for the system.
Set a plan around the kitchen
AS 1851 provides the relevant routine-service framework for kitchen exhaust maintenance. The applicable requirements, inspection findings, cooking load and any insurer or building-specific conditions should inform the service plan. Do not assume one annual booking is suitable for every kitchen. Review changes in operating hours, cooking methods, food type and deposit levels with the maintenance provider.
Keep filter maintenance separate
Grease filter exchange helps maintain the grease-arresting filters. It does not clean the chamber behind them or the connected ducts and fan. Damaged or poorly fitting filters also require attention.
Keep evidence without assuming insurance outcomes
Keep the agreed scope, service date, before-and-after photographs, PDF report, inaccessible sections and recommended follow-up together. A service report documents the work completed; the insurer, auditor or relevant authority determines whether it meets their requirements. Ask your insurer directly about the maintenance and documentation conditions in your policy.
Respond promptly to urgent warning signs
If there is smoke, fire, a burning smell or abnormal equipment behaviour, follow the site’s emergency procedures and obtain appropriate assistance. A routine cleaning appointment is not a response to an active emergency.
Arrange a commercial service
Clean Air Filtration provides commercial kitchen exhaust cleaning in Melbourne and Victoria. Tell us your site location, system details, access restrictions and operating hours so we can discuss the cleaning scope. Call (03) 9303 9661 or email sales@cleanair.com.au.
Every client receives a client portal, including one-off services. Completed-service PDF reports and job photos are available there. See our service records guide for what to keep with your maintenance history.