A Guide to Professional Kitchen Degreasing Services

Introduction to commercial kitchen degreasing

In a busy commercial kitchen, grease is not just something that looks unpleasant. If allowed to build up, it is a fire hazard, a health inspection failure risk, and a potential cause of staff injuries.

Professional degreasing is the difference between a kitchen that is simply wiped down and one that is genuinely safe, complies with regulations, and runs efficiently. At Cleaners In Europe, we treat kitchen degreasing as a technical issue rather than a basic clean. The way grease is managed directly impacts food preparation and cooking. Science, technology and expertise combine to tackle deep kitchen degreasing.

This guide explains how our professional cleaners approach kitchen degreasing, the steps we follow, and what you can expect when you bring in an expert team to supplement your daily cleaning.

How grease becomes airborne and enters ducts

When fats and oils are heated during frying, grilling or sautéing, they produce a mix of vapour and tiny grease droplets that rise with the hot air towards the extraction hood. Some of this airborne grease is captured by the filters, but some gets through and travels into the ductwork and fan.

As the air cools and changes speed in bends and horizontal runs, those fine droplets and vapours stick to metal surfaces and condense to form an ever-thicker flammable film.

This is why a kitchen that looks clean on the surface can still have significant grease layers hidden behind bulky equipment and inside its ducts and extraction systems and why periodic professional degreasing is needed.

Step 1: Assessment and Planning

Before any chemicals are used, our team works with you to understand the kitchen.

We start with a visual inspection to identify obvious heavy grease areas. This includes hoods, filters, duct access points, areas behind equipment and high-traffic floor zones. We then map the risks by noting fire-risk areas above fryers, grills, and flambé points, as well as high-slip-risk zones and spaces where access is difficult or equipment is sensitive.

We also look at when we can access your facilities without interrupting your schedule, and any site-specific rules around noise, chemical use or waste handling. This assessment stage determines the products we use, the techniques we apply and the order of work. For example, we may plan duct and filter work first or schedule floor degreasing as the final stage to reduce the chance of dirtying freshly cleaned surfaces.

Step 2: Pre-Cleaning to Remove Residues

Degreasing is most effective when loose residues are removed first. In practice, that means:

• Scraping and wiping away food debris, burnt crusts and loose pockets of oil.
• Removing and soaking filters, trays, racks and detachable parts in hot water to loosen general dirt.
• Carrying out a dry vacuum or sweep in accessible duct sections and behind equipment.
• Moving cooking and storage equipment to access those often forgotten areas.

This pre-clean stage reduces the amount of products or chemicals needed and allows degreasers to work directly on the grease layer rather than fighting through crumbs and burnt food. It also gives the team a clearer picture of how serious the grease buildup is once superficial dirt is out of the way.

Step 3: Choosing the Right Products

One of the biggest differences between professional kitchen cleaning and basic cleaning is product selection. Not every degreaser is suitable for every surface, and using the wrong product can damage equipment or leave potentially contaminating residues where food is prepared.

A professional team will match product and chemistry to the following:

• Surface type. Stainless steel, aluminium, coated metals, tiles, vinyl, concrete and glass all require different approaches. Highly alkaline products, for example, can stain or dull aluminium or certain coatings if used incorrectly.
• Grease level. Light films on newer installations can often be handled with milder, more environmentally friendly products. Heavy, baked-on grease in older systems may need stronger formulations and longer contact times.
• Food contact areas. Surfaces that directly touch food must be treated with suitable products and thoroughly rinsed so that no residue remains.

Where clients prefer green cleaning options, we can often combine lower-impact products with hotter water and more frequent maintenance to achieve the same result.

The key is being clear about what each product can do and where a specialist cleaner is needed to get things back to a safe condition.

Grease builds up in ductwork

Step 4: Application, Contact Time and Agitation

Once we have selected the right products and diluted them according to the manufacturer’s guidance, the degreasing work begins. For effective results, coverage, contact time and agitation matter.

Coverage means applying product evenly across the targeted surfaces, using spray, foam or manual application depending on the size and sensitivity of the area. In extraction systems, we work methodically across hoods, filters and accessible ductwork.

Contact time is the period when the product is left to work. Degreasers need time to break down grease, so we plan realistic contact times and monitor surfaces to ensure the product remains active without drying out or running into areas where it should not be.

Agitation is the physical action used to break the bond between grease and the surface. Brushes, scrub pads, mops and microfibre tools are used on panels and equipment. For floors, mechanical scrubbers may be used where available, while hoods and equipment are usually treated by hand for more precision.

The combination of using the right chemicals and controlled mechanical work is what distinguishes proper degreasing from a quick spray and wipe. Experience matters here because knowing how much pressure to apply, how long to wait and when to reapply the product makes the difference between a cosmetic improvement and a genuinely cleaned kitchen.

Step 5: Rinsing, Neutralising and Drying

After degreasing, cleaning up the residue is critical. The last thing you need is potentially contaminating product residue, or loosened grease on surfaces or floors.

Professionals like Cleaners in Europe follow a structured sequence:

• Rinse surfaces with clean water, often warm, to remove loosened grease and any remaining chemicals. On food contact surfaces, this stage is essential.
• Neutralise the surface if required, using a suitable product to bring the pH back to a safe level and protect metals or coatings.
• Dry equipment, surfaces and floors to reduce slip risk and prevent streaking or watermarks. In some cases, dehumidification is used to speed up drying, especially overnight, to ensure that your kitchen is ready for use when you need it.

At this point, the kitchen should look and feel noticeably cleaner. More importantly, extraction systems perform better, floors have more grip, and grease levels in critical areas are significantly reduced.

Step 6: Disinfection, Checks and Documentation

Degreasing and disinfection are related but different tasks. Once grease is removed, disinfection can be carried out far more effectively on many surfaces.

A professional service usually includes:

• Targeted disinfection of appropriate surfaces after degreasing.
• Visual inspection of hoods, filters, ducts where accessible, equipment fronts and floor zones.
• A check for slip risk, especially on the cooking line and in the wash-up areas.
• A final walk-through with the client or duty manager.

For many commercial kitchens, documenting the deep clean is increasingly important. We can provide work reports, before-and-after images where appropriate, and future maintenance recommendations based on the conditions we have seen. This record supports internal audits and makes it easier to show that the kitchen is being maintained to a recognised standard.