GreaseKiller

Surfaces & uses

What GreaseKiller™ Spray cleans

One formula, built for a single enemy: grease that has been heated until it hardened. Here is every surface it belongs on, how long to leave it, and the short honest list of places it does not belong.

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Written by the GreaseKiller™ product team · Last updated

Spraying GreaseKiller™ foam onto carbonised grill grates

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How many bottles do you actually need?

One 50g bottle covers about one full grill clean, or two average ovens. Pick what you are cleaning and we will point you at the right pack.

Outdoor cooking

Grill grease is the hardest version of the problem. Fat drips onto metal that is running at 500–700°F, boils off its light fractions and leaves behind a polymerised carbon layer that is chemically bonded to the steel. That is why dish soap slides straight off it and why a wire brush only takes off the top crust while the black glaze underneath stays put.

GreaseKiller™ works on that bond rather than on the surface. Spray a thin, even coat of foam on a completely cool grate, give it two minutes — four to five if the grate has not been touched all season — and the carbon lifts in sheets instead of being ground away. Grates, flame tamers and grease trays all take the same treatment, and nothing abrasive touches the porcelain enamel or the cast iron seasoning.

  • Smokers and pellet grills
  • Flat-top griddles
  • Pizza oven trays
  • Warming racks
  • Grill carts and side tables
  • BBQ tool sets and skewers

Indoor kitchen

Indoors the grease is softer but far more widespread. Every time you roast or fry, aerosolised fat lands on the oven roof, the hob surround, the hood canopy, the cabinet doors above the burners and the underside of the extractor. Left alone it oxidises into that sticky amber film that fingers stick to, then eventually darkens into the same hard brown lacquer you get on a grill.

Conventional oven cleaners handle it with caustic soda, which means gloves, an open window, an hour of waiting and a smell that hangs around for a day. GreaseKiller™ is a non-caustic foam, so the same two-minute routine works on oven door glass, hob trivets, hood filters, air fryer baskets and microwave interiors — the places you actually cook in, several times a week.

For anything that touches food — baskets, racks, trays, grill pans — rinse with clean water and dry after wiping. That single step is the difference between a surface that is clean and a surface that is ready to cook on tonight.

  • Roasting tins and baking trays
  • Grill pans
  • Extractor housings
  • Cabinet doors above the hob
  • Stainless splashbacks
  • Toaster oven trays

Garage, workshop and commercial

The same chemistry that lifts cooking fat lifts machine oil and road grime, so the bottle does not have to stay in the kitchen. Workshop benches, vices, hand tools, engine bays and garage floors all respond to a coat of foam and a wipe, and because there is no abrasive in it, tool markings and painted machine housings survive the process.

Commercial kitchens are the heaviest-duty case and the reason the 8-pack exists. A line cleaned nightly needs volume, not strength: hood canopies, fryer surrounds, prep stainless, salamanders and combi ovens go faster with a non-caustic foam because staff do not need masks, the kitchen does not need airing out, and there is no rinse-down of caustic residue before service.

  • Garage floors
  • Chain and sprocket grime
  • Extraction ducting access panels
  • Salamanders and combi ovens
  • Food truck galleys
  • Catering trolleys

Surface compatibility chart

Dwell times assume a cool surface and an even coat of foam. Heavier build-up wants a second coat rather than a longer soak.

GreaseKiller™ Spray surface compatibility, dwell time and rinsing
SurfaceMaterialSafe to useDwellRinse
Grill gratesStainless steelSafe2–5 minYes — food contact
Grill gratesCast ironSafe3 minYes, then re-oil
Grill gratesPorcelain enamelSafe2 minYes — food contact
Oven door glassTempered glassSafe2–5 minWipe with clean water
Oven cavityVitreous enamelSafe3 minWipe with clean water
Oven cavityCatalytic / self-clean linerDo not useNever — liners absorb cleaner
Hob and burner capsEnamel, glass, steelSafe2 minYes — food contact
Hood filtersStainless meshSafe3 minRinse and dry fully
Hood filtersBare aluminium meshDo not useUse an aluminium-safe cleaner
Air fryer basketNon-stick coated meshPatch test first2 minYes — food contact
Microwave interiorPainted steel, ceramicSafe2 minWipe with clean water
Deep fryer wellStainless steelSafe5 minYes — food contact
WorktopsSealed laminate, quartzSafe1–2 minWipe with clean water
WorktopsUnsealed marble or graniteDo not useAlkaline etches the stone
Cabinet frontsLacquered or painted woodPatch test first1 minWipe and dry immediately
Tools and benchesBare or coated steelSafe3 minDry to prevent flash rust

Where not to use it

A degreaser that claims to be safe on everything is lying to you. These are the surfaces to keep it away from — knowing them is what keeps a cleaning job from becoming a repair job.

  • Bare or anodised aluminium — alkaline cleaners dull, darken and pit it. That includes aluminium hood filters, some baking trays and most stove-top espresso pots.
  • Unsealed natural stone such as marble, limestone or unsealed granite worktops, where an alkaline cleaner can etch the finish.
  • Catalytic and pyrolytic self-cleaning oven liners — the porous coating absorbs any cleaner and then smokes on the next cycle. Clean the door glass and racks only.
  • Painted, lacquered or powder-coated finishes without a patch test in a hidden spot first, and never leave the foam sitting on them.
  • Fabric, upholstery, carpet and unsealed wood.
  • Any surface that is still hot. Let it cool completely — hot metal flashes the foam off before it can work, and that is how you get streaks.

Full ingredient and safety detail is on the safety page, and the step-by-step method is on the how-to-use guide.

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Melted years of baked-on grease

"GreaseKiller melted years of baked-on grease on my stovetop and oven in seconds. Now every meal prep starts with shiny, like-new surfaces."

Michael K. · Austin, TX · Verified buyer

No more scrubbing

"Stubborn burnt-on residue disappeared from my oven and stovetop, and the cabinets are spotless. Makes kitchen cleaning effortless."

Sam F. · Manchester, UK · Verified buyer

Sold by GreaseKiller™ Spray · Miami, Florida, USA · Support: support@greasekillerspray.com

  • What if it doesn't work on my grease?

    Use it on your worst surface. If it doesn't lift the grease, email us within 90 days and we refund in full — no photos, no restocking fee.

  • When will it arrive?

    Orders placed on a business day ship within 24 hours. Free standard shipping worldwide; add Priority at checkout for the fastest delivery.

  • Is it safe on my grill and oven?

    Yes — non-abrasive and low-odour. Use on a cool surface, wipe with a damp cloth, rinse and pre-heat 5 minutes before cooking.

3x GreaseKiller™ Spray

Total $39.00 · Free shipping

Rated 4.8/5 by 3,684 customers

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  • Melted years of baked-on grease

    GreaseKiller melted years of baked-on grease on my stovetop and oven in seconds. Now every meal prep starts with shiny, like-new surfaces.

    Michael K. · Austin, TX · Verified buyer

  • No more scrubbing

    Stubborn burnt-on residue disappeared from my oven and stovetop, and the cabinets are spotless. Makes kitchen cleaning effortless.

    Sam F. · Manchester, UK · Verified buyer

  • Carbon buildup vanished

    Grease and carbon buildup vanished from my grill grates, oven and range hood in moments. Cooking feels safe and enjoyable again.

    Jerry B. · Columbus, OH · Verified buyer

  • Best kitchen purchase this year

    Baked-on grime didn't stand a chance. GreaseKiller works faster than anything I've used before and it doesn't stink out the kitchen.

    John R. · Hamburg, DE · Verified buyer

  • Works every single time

    I've used GreaseKiller all month — it removes burnt-on grease and sticky residue every single time. No scrubbing, no waiting.

    Anna A. · Denver, CO · Verified buyer

  • Saved my 6-year-old gas grill

    I was about to buy a new grill. Two sprays, five minutes with a cloth, and the grates look factory-new. Cheapest grill upgrade ever.

    Derek P. · Brisbane, AU · Verified buyer

90-day results-or-refund guarantee

Use GreaseKiller™ on your dirtiest grill, oven or hob. If it doesn't lift the grease you expected, email us within 90 days of delivery and we'll refund you in full — no photos, no restocking fee, no argument.

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Frequently asked questions

What surfaces can GreaseKiller™ Spray be used on?+

Stainless steel, cast iron, porcelain enamel, glass, ceramic and most sealed hard surfaces — grills, ovens, hobs, hood filters, air fryers, microwaves, deep fryers, tools and workshop benches included.

What should I not use it on?+

Avoid bare or anodised aluminium, unsealed natural stone, catalytic or self-cleaning oven liners, painted or lacquered finishes without a patch test, fabric, and any surface that is still hot.

Is it safe on surfaces that touch food?+

Yes. Use it on a cool surface, let the foam dwell, wipe it away and then rinse with clean water and dry. After that rinse, grates, baskets and trays are ready to cook on.

How long should I leave it on?+

Two minutes for everyday grease, three to five minutes for heavy carbonised build-up. If a spot resists, re-coat it rather than leaving the first coat on longer.

How much does one bottle clean?+

A 50g bottle covers roughly one full grill clean, or about two average ovens. Most households pick the 3-pack so one bottle lives by the grill and the others cover the kitchen.

Does it work on cast iron without removing the seasoning?+

Yes — it dissolves carbon rather than abrading it. Rinse and re-oil the grate afterwards, exactly as you would after any wash.

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