A dirty range hood is one of the easiest ways to turn a busy kitchen into a slow, slippery and uncomfortable workplace. Grease that builds up on the canopy, filters and fan weakens extraction, leaves oil dripping onto the cooking line, and makes daily wiping take far longer than it should. A written cleaning plan turns this endless chore into a short, repeatable routine that the whole team can follow.
Start With What the Plan Has to Cover
Before setting any schedule, write down every part of the hood system that touches cooking air. In most commercial kitchens that means the outer canopy, the internal baffle filters, the plenum behind the filters, the fan or blower housing, the accessible section of the exhaust duct, and the grease cup or collection tray. The cookline surfaces under the hood — stovetops, grills, fryers and the wall shield behind them — belong on the same list, because grease lifted from those surfaces is what ends up inside the hood.
Next to each item, note three things: who is responsible for cleaning it, how often it is cleaned, and how the job is done. A plan that only says “clean the hood monthly” is not usable; a plan that says “line cook wipes the canopy interior at the end of every shift, filters are degreased twice a week, the fan housing is steam cleaned each month” can actually be checked and followed.
Build the Plan Around Three Cleaning Frequencies
Daily surface work
Every day, after service, the outer canopy, the visible frame, the filters' front edge and the surfaces directly below the hood should be wiped down while the grease is still soft. This is the cheapest work in the whole plan, and skipping it is what makes a monthly clean take half a day instead of one hour.
Weekly filter and grease-point cleaning
Baffle filters and the grease cup should come out on a fixed weekday, on the same week as the deep cookline clean. Filters that sit in grease for a month are harder to handle, more likely to be damaged during scrubbing, and restrict airflow long before anyone notices the change in extraction.
Monthly or quarterly deep cleaning
The plenum behind the filters, the fan housing and the first reachable metres of duct need a heavier clean at a longer interval. Set the interval by how the kitchen actually cooks: a charcoal grill or a heavy fry line will need this every month, while a lighter preparation line can stretch it. Write the date, the person, and what was inspected so the next review can see whether the interval is right.
Put the Cleaning Method in Writing, Not Just the Frequency
Two kitchens can share the same schedule and get very different results, because the method decides how much grease is really removed. Spray-and-scrub with a chemical degreaser is the common approach, but it needs dwell time, careful rinsing, and it leaves the crew working around strong detergent and run-off water in a kitchen that is still in use.
High-temperature steam does the same job with a different set of trade-offs. Steam at high pressure softens and lifts hardened grease from the canopy interior, filter frames and fan housing without the long chemical dwell time, and the low water volume means the area is back in service quickly. That matters in a kitchen that cannot close for cleaning. A fixed steam cleaning machine such as the PowerDe HW02 runs on a normal 220 V supply, delivers dry or wet steam from the same unit, and is a practical fit for a kitchen that cleans its hood on a fixed cycle and wants less chemical use and less standing water on the floor. For the cookline itself, commercial kitchen steam cleaning covers the stovetops, grills and floor directly under the hood in the same session.
Whatever method the plan chooses, the written procedure should state the order of work — top to bottom, inside to outside — so that loosened grease falls onto surfaces that will be cleaned next rather than onto surfaces already finished.
Add the Parts Most Plans Leave Out
A condition check, not just a clean
Each deep clean should include a short inspection: are the filters still flat and undamaged, is the grease cup seated correctly, is there a new drip point along the duct, has extraction visibly weakened? Recording the answer is what tells a kitchen manager when to schedule central kitchen hood degreasing sooner rather than waiting for a complaint from the dining room.
Named responsibility and a sign-off
Put a name against every line of the plan, and keep a simple log sheet by the hood: date, item cleaned, method used, initials. Without the log, the plan is a document nobody can verify, and a kitchen that cannot show cleaning records has no defence when a fire or health inspection asks how the exhaust system was maintained.
Access, safety and equipment readiness
The plan should say how the crew reaches the fan housing and duct, what isolation or lock-off applies to the extraction fan before anyone opens it, and what personal protective equipment is required for hot steam or chemical degreasing. It should also state that the cleaning machine is checked and filled before the session, so a cleaning job does not stall halfway through because the water tank is empty or the unit has not been powered up.
Review the Plan Against What the Kitchen Actually Produces
A cleaning plan is not fixed for good. Every quarter, look at the log and at the state of the filters on the day they come out. Grease that has hardened through a filter mesh before its next scheduled clean means the interval is too long. A kitchen that has added a grill, extended its service hours, or started working with oilier menus needs the frequency raised, not the method made harder. If the equipment itself no longer matches the workload, the PowerDe cleaning equipment range covers fixed, hand-pushed and mobile steam machines, so a kitchen can match the machine to the space it has rather than forcing one unit to do everything.
A Ready-to-Use Checklist
- A full list of hood parts in scope: canopy, filters, plenum, fan housing, duct access, grease cup, cookline below
- Named owner for each item, plus the cleaning frequency
- The written cleaning method and the order of work
- Inspection points and what triggers a shorter interval
- Sign-off log kept at the hood, with date and initials
- Access method, fan isolation, and PPE for steam or chemical work
- Equipment readiness check before each session
- A quarterly review of the log and filter condition
Write those eight lines down, put them on the wall, and the hood becomes a maintained piece of equipment instead of something the team argues about every time the extraction gets weak.
