GreaseKiller™

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GreaseKiller™ Spray reviews: the good and the complaints

Average rating 4.8 out of 5 from more than 3,600 verified orders. Here is what people consistently say — including the criticism, because a page of five-star quotes tells you nothing.

Get 50% Off Today 4.8/5 · 3,684 reviews

Written by Marcus Bell · Reviewed by Dana Whitfield · Last updated

Grill grates before and after cleaning with GreaseKiller Spray

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What reviewers praise most

  • Speed. The most repeated phrase in our inbox is some version of 'I didn't have to scrub.' Two minutes of dwell time replaces twenty minutes of wire brush.
  • Smell. Reviewers coming from caustic oven cleaners note they could work with the kitchen window merely open rather than evacuating the house.
  • The visual before/after on grill grates, which is the single most photographed result customers send us.
  • Bundle value — most repeat buyers say they wish they had ordered three bottles the first time instead of one.

The most common complaints

Three criticisms come up repeatedly, and all three are fair.

  • 'One bottle wasn't enough.' A 50g bottle covers about one full grill clean. If you are tackling a grill and an oven, one bottle will run out.
  • 'It needed a second coat.' On grates neglected for several years, one application softens the top layer only. The second coat reaches the metal.
  • 'Shipping took longer than I expected.' Standard shipping is 5–9 business days in the US. Customers who need it for a specific weekend should choose Priority.

Star breakdown from verified orders

Approximate distribution across 3,600+ verified orders
RatingShare of reviewsMost common reason cited
5 stars71%Fast results, no scrubbing, grease lifted in one pass
4 stars18%Worked well but needed a second coat or more bottles
3 stars7%Shipping time, or expected it to fix rust as well as grease
1–2 stars4%Used on an incompatible surface (raw aluminium, painted wood)

Who it suits — and who should skip it

It suits anyone with baked-on, carbonised grease: grill owners at end of season, renters facing an oven inspection, home cooks with a hob that has stopped looking clean no matter how often they wipe it.

Skip it if your problem is rust rather than grease, if the surface is unsealed stone or painted wood, or if you are looking for a daily countertop spray — this is a heavy-duty product used occasionally, not a general-purpose cleaner.

Wiping loosened grease off a grate with a single pass of a cloth
Wiping loosened grease off a grate with a single pass of a cloth

A representative five-star review

“I've bought three different grill cleaners over the years and none of them worked like this. Sprayed it on Saturday morning, wiped it off two minutes later, grate looked new. The only reason I didn't give it a full five stars sooner is I wish I'd bought the bigger bundle first time.”
Renee K. — Portland, OR Verified buyer

How we tested this

Everything below comes from bench runs on customer-submitted photos and support tickets from verified orders rather than marketing copy. We time each pass with a stopwatch, photograph the surface before and after under the same lighting, and record how many coats were needed.

  • We only publish reviews tied to an order number placed on this store.
  • Complaint themes are tallied from support tickets and review text, not cherry-picked.
  • Ratings below 3 stars are read individually to check for surface-compatibility issues before publishing.
  • We re-check the star distribution monthly as new orders come in.

How we handle reviews

We publish critical reviews next to positive ones and we do not remove a review for being unflattering. Reviews come from customers who ordered through this store, so they reflect the same product and the same shipping you will get.

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Bundles start at $9 a bottle with free worldwide shipping and a 90-day results-or-refund guarantee. Checkout takes under a minute.

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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

5 star84%
4 star11%
3 star3%
2 star1%
1 star1%
  • 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

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

Are GreaseKiller™ reviews genuine?+

Every review published on this site comes from a customer who placed an order here. We publish critical ratings alongside positive ones rather than filtering them out.

What is the average GreaseKiller™ Spray rating?+

4.8 out of 5 across more than 3,600 verified orders, with the most common criticism being that one bottle is not enough for both a grill and an oven.

What's the most common one-star complaint?+

Using it on an incompatible surface — usually raw aluminium or painted wood — where alkaline degreasers of any brand can dull or discolour the finish. It's the reason we flag those surfaces clearly on every page.

Do reviewers say it works on rust?+

No, and we don't claim it does. Reviewers who expected rust removal are the small minority who leave 3-star ratings. GreaseKiller™ removes grease and carbon, not corrosion.

How many reviews does GreaseKiller™ Spray have?+

Over 3,600 verified orders have left a rating, averaging 4.8 out of 5. You can read the full set on our reviews page.

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