Step-By-Step Guide to Grease Hood & Exhaust Cleaning for Melbourne Kitchens
- Content Team
- 2 days ago
- 4 min read
Updated: 22 hours ago

Commercial kitchens in Melbourne operate under strict food safety and fire regulations. One of the most critical, yet often overlooked, areas is grease hood and exhaust system cleaning. Over time, grease buildup in hoods, filters, ducts, and exhaust fans can become a serious fire hazard, compromise air quality, and even lead to failed health inspections.
This step-by-step guide explains how grease hood and exhaust cleaning is done, why it matters, and how often Melbourne kitchens should schedule professional cleaning.
Why Grease Hood & Exhaust Cleaning Is Critical for Commercial Kitchens
Grease hoods and exhaust systems are designed to capture smoke, grease vapours, and heat. Without regular cleaning, grease accumulates and creates risks such as:
Fire hazards from highly flammable grease
Failed council or health inspections
Poor kitchen ventilation and airflow
Persistent odours and smoke
Unhealthy working conditions for staff
In Melbourne, councils and fire authorities expect commercial kitchens to maintain clean exhaust systems in line with Food Safety Standards Australia New Zealand (FSANZ) and local regulations.
What Is Included in Grease Hood & Exhaust Cleaning?
Before diving into the steps, it’s important to understand what professional cleaning covers:
Range hoods and canopy interiors
Grease filters and baffles
Exhaust ducts and internal ductwork
Exhaust fans and motors
Surrounding walls, ceilings, and drip trays
A proper clean goes far beyond wiping visible surfaces.
Step-By-Step Grease Hood & Exhaust Cleaning Process
Step 1: Pre-Inspection and Safety Preparation
Professional cleaners begin with a full system inspection, checking grease levels in:
Hood canopy
Filters
Ducting
Exhaust fan
Safety steps include:
Turning off gas and electrical connections
Covering cooking equipment and surfaces
Placing grease containment sheets to prevent spills
This ensures both safety and cleanliness during the process.
Step 2: Removing and Cleaning Grease Filters
Grease filters are removed and soaked in industrial-grade, food-safe degreasers.
Heavy grease is broken down using hot water and pressure washing
Filters are thoroughly rinsed and sanitized
Clean filters improve airflow and reduce smoke buildup
Clogged filters are one of the most common reasons for failed inspections.
Step 3: Deep Cleaning the Hood Canopy
The hood canopy interior and exterior are sprayed with commercial degreasing agents.
Cleaning includes:
Interior surfaces
Drip trays and grease collection points
Light covers and hood edges
This step removes visible and hidden grease, restoring proper ventilation.
Step 4: Exhaust Duct Cleaning (The Most Critical Step)
Grease inside exhaust ducts is a major fire risk.
Professional teams use:
Scrapers and rotary brushes
High-pressure hot water systems
Degreasers designed for duct interiors
The entire duct length, from hood to exhaust fan, is cleaned to ensure compliance.
Step 5: Exhaust Fan & Motor Cleaning
Exhaust fans pull grease-laden air out of the kitchen. Over time, grease coats fan blades and motors.
Cleaning includes:
Degreasing fan blades
Removing grease from housing units
Ensuring smooth fan operation
Clean fans work more efficiently and reduce energy costs.
Step 6: Final Rinse, Sanitization & Inspection
Once cleaning is complete:
All areas are rinsed
Food-safe sanitizers are applied
Equipment covers are removed
Final inspection ensures no grease residue remains
Many professional cleaners also provide before-and-after photos and cleaning reports for compliance records.
How Often Should Grease Hoods & Exhausts Be Cleaned?
The frequency depends on kitchen usage:
Kitchen Type | Recommended Frequency |
High-volume restaurants & hotels | Every 1-3 months |
Cafés & moderate-use kitchens | Every 3-6 months |
Low-volume or seasonal kitchens | Every 6-12 months |
Melbourne councils and insurers may require documented cleaning schedules.
Benefits of Professional Grease Hood & Exhaust Cleaning
Hiring experts delivers long-term value:
Improved fire safety
Better airflow and temperature control
Compliance with Melbourne regulations
Cleaner, healthier kitchen environment
Extended life of ventilation equipment
Why Melbourne Kitchens Should Rely on Professional Cleaning Services
Melbourne’s hospitality industry is highly regulated and competitive. Regular professional grease hood cleaning protects:
Your staff
Your customers
Your business reputation
Your operating license
A clean exhaust system isn’t just about compliance, it’s about running a safer, more efficient kitchen.
Final Thoughts
Grease hood and exhaust cleaning is not an optional task, it’s a critical safety and compliance requirement for commercial kitchens in Melbourne. Following a structured, professional cleaning process helps reduce risks, pass inspections, and maintain a productive kitchen environment.
If you operate a restaurant, café, or hotel kitchen, scheduling routine grease hood and exhaust cleaning is one of the smartest operational decisions you can make.
FAQs
Is grease hood cleaning mandatory in Melbourne?
Yes. Commercial kitchens must maintain clean exhaust systems to meet fire safety and food hygiene regulations.
Can my kitchen staff clean grease hoods themselves?
Staff can clean external surfaces and filters, but ducts and exhaust fans require professional equipment and expertise.
What happens if grease hoods aren’t cleaned?
Unclean systems can cause:
Fire outbreaks
Fines or closure notices
Failed inspections
Insurance claim rejections
How long does grease hood cleaning take?
Most jobs take 2-6 hours, depending on kitchen size and grease levels.
Are the chemicals used food-safe?
Professional cleaners use food-grade, non-toxic degreasers approved for commercial kitchens.





