Excessive Grease Inside the Hood Canopy

One of the most common issues found in commercial kitchen exhaust systems is excessive grease inside the hood canopy. Every time food is cooked, grease-laden vapors rise into the exhaust hood. While the hood is designed to capture these vapors, grease gradually accumulates on interior surfaces over time.

If grease is allowed to build up, it can become more difficult to remove and may increase the risk of a fire spreading through the kitchen exhaust system. Routine inspections and professional hood cleaning help keep the system operating safely and efficiently.

Why It Matters

The hood canopy is the first point where grease collects before traveling into the ductwork and exhaust fan. Heavy grease buildup can:

• Increase the amount of combustible grease inside the exhaust system.
• Reduce the efficiency of the ventilation system.
• Contribute to unpleasant odors and smoke.
• Make routine maintenance more difficult.
• Draw attention during a fire safety inspection.

Keeping the hood canopy clean is an important part of maintaining a safe commercial kitchen.

What Inspectors Look For

During an inspection, a fire inspector may visually examine the hood canopy for signs of grease accumulation.

Common observations may include:

• Thick layers of grease on interior surfaces.
• Grease dripping from seams or edges.
• Grease running down the sides of the hood.
• Sticky residue on accessible surfaces.
• Evidence that routine cleaning has been neglected.

The overall condition of the hood system is often considered along with other components such as the filters, ductwork, and exhaust fan.

How To Check It Yourself

Kitchen managers can perform simple visual inspections between professional cleanings.

Look for:

• Dark, sticky grease on the inside of the hood.
• Grease collecting in corners or seams.
• Grease dripping onto cooking equipment.
• Greasy residue around the filters.
• Areas that appear significantly darker than surrounding stainless steel.

If you notice heavy grease buildup, it may be time to schedule a professional cleaning.

How To Correct It

Routine wiping of accessible surfaces can help reduce everyday grease accumulation, but commercial kitchen exhaust systems should be professionally cleaned on a regular schedule.

Professional hood cleaning typically includes cleaning accessible hood surfaces, filters, ductwork, and other components of the exhaust system as needed.

The appropriate cleaning frequency depends on your cooking volume, menu, and the amount of grease produced during normal operations.

When To Call A Professional

Consider contacting a professional hood cleaning company if you notice:

• Heavy grease deposits inside the hood.
• Grease dripping from the canopy.
• Strong grease odors.
• Smoke lingering in the kitchen.
• It’s been several months since the last professional cleaning.
• You’re preparing for a fire or insurance inspection.

A qualified hood cleaning company can evaluate your system and recommend an appropriate cleaning schedule based on your operation.

Related Articles

Continue learning about commercial kitchen fire safety:

• Grease Dripping From Hood Filters
• Missing or Damaged Hood Filters
• Grease Buildup Behind Hood Filters
• Excessive Grease Inside Exhaust Ductwork
• Rooftop Exhaust Fan Grease Buildup
• How Often Should a Commercial Kitchen Hood Be Cleaned?
• Understanding NFPA 96 Hood Cleaning Guidelines
• Top 50 Commercial Kitchen Fire Safety Issues That Can Lead to Inspection Concerns

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If you've noticed excessive grease inside the hood canopy, don't wait until it becomes a larger problem.

All City Hood Cleaning provides professional commercial kitchen hood cleaning throughout Wisconsin for restaurants, schools, hospitals, nursing homes, hotels, food trucks, casinos, breweries, churches, and other commercial kitchens.

Our experienced team can help keep your kitchen exhaust system clean, reduce grease buildup, and support your ongoing maintenance program.

Contact All City Hood Cleaning today for a free estimate or to discuss a maintenance schedule that fits your operation.