Signs Your Commercial Kitchen Exhaust System Needs Cleaning
A commercial kitchen exhaust system works hard to remove smoke, heat, grease-laden vapours, and cooking byproducts from the kitchen.
Over time, grease and residue can accumulate on the hood, filters, exhaust fan, and other accessible components of the system. Regular kitchen cleaning does not necessarily remove buildup from the exhaust system itself.
If you're responsible for a restaurant, commercial kitchen, or food-service operation, here are some signs that your exhaust system may need professional cleaning.
1. You Can See Grease Buildup
One of the most obvious signs is visible grease.
Check the hood, filters, and other accessible components for:
Greasy surfaces
Sticky residue
Thick buildup
Darkened areas
Grease deposits around filters
If grease is visibly accumulating, it may be time to have the system assessed and cleaned.
2. Your Filters Are Heavily Greased
Kitchen exhaust filters are designed to capture grease and other particles before they travel further into the exhaust system.
Filters that appear heavily coated with grease may indicate that they require cleaning.
However, cleaning the filters alone doesn't necessarily mean the rest of the exhaust system is clean. Grease can also accumulate in other components of the system.
3. Grease Is Dripping or Running Down Surfaces
Grease should not be allowed to accumulate excessively on kitchen exhaust components.
If you notice grease dripping, running down surfaces, or collecting around the hood or filters, it's a good reason to have the system inspected.
Visible grease buildup can also make routine kitchen cleaning more difficult.
4. The Hood Is Becoming Difficult to Clean
If normal wiping no longer removes the residue from the hood, there may be a significant buildup of grease and cooking residue.
Commercial kitchen exhaust systems can accumulate stubborn grease that requires more than routine surface cleaning.
A professional cleaning can address buildup within the scope of the exhaust system being serviced.
5. There Is Significant Grease Around the Exhaust Fan
The exhaust fan is another area that can accumulate grease and residue.
Depending on the system and cooking operation, grease may build up around the fan and other components over time.
If these areas haven't been professionally cleaned recently, they should be included when evaluating the condition of the exhaust system.
6. Your Kitchen Produces a Lot of Grease
The type of cooking your business performs matters.
Commercial kitchens that regularly cook foods using:
Fryers
Grills
Charbroilers
Woks
High-temperature cooking equipment
may produce more grease-laden vapours than kitchens with lighter cooking operations.
Higher grease production can mean that the exhaust system requires more frequent attention.
7. Your Cleaning Schedule Is Overdue
Commercial kitchen exhaust systems should be maintained according to the requirements that apply to the specific system and cooking operation.
If your restaurant has an established cleaning schedule and the next service is overdue, it's worth arranging an inspection or cleaning rather than waiting for visible buildup to become significant.
When determining the appropriate schedule, consider your cooking volume, type of cooking, equipment, and applicable requirements.
8. You're Preparing for an Inspection or Opening
If you're preparing to:
Open a new restaurant
Reopen a kitchen
Complete a renovation
Take over an existing restaurant
Prepare for an inspection
Change operators
it's a good opportunity to evaluate the condition of the kitchen exhaust system.
A professional cleaning can help ensure the system is addressed as part of your overall kitchen maintenance plan.
What Parts of a Commercial Kitchen Exhaust System May Need Cleaning?
Depending on the system and the agreed scope of work, professional exhaust cleaning may include accessible components such as:
Hood
The hood can accumulate grease, smoke residue, and other cooking byproducts.
Filters
Filters can collect substantial amounts of grease and should be cleaned and maintained appropriately.
Exhaust Fan
The fan and surrounding components may accumulate grease over time.
Ductwork
Grease can also accumulate within exhaust ductwork. Access and cleaning requirements will depend on the specific system.
A professional cleaning company can assess the system and determine the appropriate scope of service.
How Often Should a Commercial Exhaust System Be Cleaned?
There isn't one universal cleaning schedule for every commercial kitchen.
The appropriate frequency depends on factors such as:
Type of cooking
Volume of cooking
Hours of operation
Amount of grease produced
Type of equipment
Condition of the exhaust system
Applicable requirements and recommendations
Restaurant operators should follow the requirements applicable to their kitchen and confirm the appropriate schedule with the relevant authority or qualified professional when necessary.
Don't Wait Until the Buildup Is Obvious
Regular kitchen cleaning and exhaust-system cleaning are not the same thing.
Your kitchen staff may clean the visible hood and filters as part of their regular routine, while the exhaust system may require separate professional attention.
Keeping a consistent maintenance schedule can make it easier to stay ahead of heavy buildup and keep the system in good working condition.
Commercial Hood & Exhaust Cleaning in Winnipeg
JM ProClean provides commercial kitchen hood and exhaust cleaning services for restaurants and commercial kitchens in Winnipeg and surrounding areas.
Our services can include cleaning of hoods, filters, and applicable exhaust components based on the scope of your system.
If you're unsure whether your commercial kitchen exhaust system needs cleaning, contact JM ProClean to discuss your kitchen and request a quote.