GreaseKiller™ Spray: what it is and why it works

What GreaseKiller™ Spray actually is

GreaseKiller™ is a clinging foam degreaser sold in 50g bottles. It is designed for one specific enemy: polymerised grease — the hard, glossy brown-black layer that forms when cooking fat is heated repeatedly until it turns to carbon and bonds to metal.

That layer is why ordinary washing-up liquid fails on a grill grate. Dish soap emulsifies liquid fat. It has almost nothing to grip once that fat has cross-linked into a solid. GreaseKiller™ attacks the bond between that carbon layer and the metal underneath, so the residue lifts off in sheets instead of being ground away.

Where people use it

It is not for painted wood, unsealed stone, aluminium cookware you want to keep shiny, or anything with a delicate factory coating. Test a hidden patch first — that rule applies to every degreaser, not just this one.

• BBQ and gas grill grates, flame tamers and drip trays
• Oven interiors, oven doors and glass panels
• Gas hobs, electric hobs, burner caps and pan supports
• Range hood filters, splashbacks and extractor housings
• Air fryer baskets, deep fryers and roasting tins
• Stainless steel appliance fronts, cast iron and enamel

How to use it in four steps

1. 1

   Let the surface cool completely

   Never spray a hot surface. Wait until the surface is cool to the touch, then brush or wipe away loose crumbs, ash and food debris so the foam reaches the grease itself.

2. 2

   Spray an even coat of foam

   Hold the bottle 4–6 inches away and lay down a thin, even layer. The foam is designed to cling to vertical surfaces, so you don't need to soak anything.

3. 3

   Wait about two minutes

   This is where the work happens. The formula penetrates the carbonised layer and breaks its bond with the metal. Very heavy build-up may want 4–5 minutes or a second coat.

4. 4

   Wipe, rinse and dry

   Wipe in one direction with a damp microfibre cloth. Use a soft brush on textured cast iron. Rinse any surface that will touch food, then dry to prevent water spots.

What one bottle covers

A single 50g bottle handles roughly one full grill clean or two average oven cleans. That is why almost everyone orders the 3-bottle bundle: one for the grill, one for the kitchen, one that lives under the sink for spills.

Bundle pricing on this site:

• 1 bottle — $19 ($19 each), Save $19
• 2 bottles — $32 ($16 each), Save $32
• 3 bottles — $39 ($13 each), Save $39
• 5 bottles — $55 ($11 each), Save $55
• 8 bottles — $72 ($9 each), Save $72

Honest limits

GreaseKiller™ removes grease and carbon. It does not repair rust pitting, restore chipped porcelain enamel, or straighten a warped grate. On a grill that has not been cleaned in five years, plan on two applications rather than one — the first coat lifts the top layer, the second reaches the metal.

We would rather tell you that now than refund you later. If it still does not deliver, the 90-day guarantee covers you either way.