Stain how-to · Grease & oil
How to Get Grease Out of a Rug
Absorb first, then emulsify. Cornstarch pulls the oil out, dish soap lifts the residue. Resist the urge to add water first.
Time to act
Difficulty
Tools needed
Don’t add water first.
Grease and oil are hydrophobic — they repel water. Pouring water on an oil stain pushes it deeper into the foundation without lifting any of it. The right move is to absorb the oil out first with a powder, then dissolve any remaining residue with dish soap (which is engineered specifically to emulsify oil).
Cornstarch, baking soda or talcum powder all work as the absorbent. Cornstarch is the gentlest on natural-fiber rugs.
Step-by-step
Work through these in order.
1. Blot up excess oil
Press a clean white cloth onto the stain to absorb any pooled oil on the surface. Lift, refold, blot again. Do not rub.
2. Cover with cornstarch
Pour a thick layer of cornstarch (or baking soda) over the stain. Press lightly into the pile so it contacts the oil. Leave 30 minutes — longer for older stains.
3. Vacuum the powder
Vacuum thoroughly. The powder should look discolored where it absorbed the oil. If the stain is still visible, repeat steps 2-3 with fresh powder. Repeat until the powder comes up white.
4. Dish soap solution
Mix one teaspoon clear dish soap into a cup of cool water. Apply with a damp cloth, blot from outside in. Soap emulsifies any residual oil.
5. Cold rinse & flat dry
Mist cold water on, blot. Repeat until no soap residue lifts. Stack absorbent towels on top with a book overnight.
What NOT to do
Common mistakes that make it worse.
Don’t pour water first. Water pushes oil deeper. Always absorb with powder first.
Don’t use a degreaser sprayed on direct. Industrial degreasers strip dye from natural fibers. Even on synthetics, test first.
Don’t skip the powder repeat. One powder pass usually doesn’t lift it all. Two or three passes are normal.
Don’t iron the stain “to lift it through paper.” This often spreads the oil and on natural fiber can scorch the pile.
For wool, silk & antique rugs
Stop. Call us. Do not DIY.
If your rug is wool, silk, antique, hand-knotted, or has any sentimental or financial value, please don’t try to remove the grease stain yourself. Wool dyes can shift, silk can dull permanently, and antique foundations can tear under the wrong solvent. Call us first — free pickup, free written estimate, insured handling.
For machine-made polyester or polypropylene area rugs in everyday rooms, the steps below are safe to attempt — but stop if the stain spreads or the color lifts.
Get a free estimateWhen to call a pro
A simple decision tree.
- The stain is older than 24 hours. Set grease stains need a professional extraction approach — home methods will set them further.
- The rug is wool, silk, antique, or hand-knotted. Always call a pro. Always.
- The stain is larger than 6 inches across. A large stain needs a full-rug rinse to avoid a halo and a tidemark.
- The dye is lifting or the color is bleeding. Stop immediately and call — further work will spread the bleed.
- You’ve tried two products and it’s still there. The third try usually creates damage. Save the rug.
Related stain guides
More how-tos.
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Questions
Quick answers.
Why does cornstarch work on grease?
Cornstarch is highly absorbent and pulls oil out of the fiber by capillary action. It needs to dwell on the stain for fifteen to thirty minutes for the best result. Baking soda and talc do the same thing.
What about engine grease or shoe polish?
Both contain heavy petroleum oils that home cleaners cannot fully remove. Blot the bulk and call us — we have a citrus-based solvent that lifts heavy grease without damaging fiber.
Will the grease come back?
If you don’t fully extract the cornstarch and rinse the residual oil, yes — the stain will wick back up as the rug warms. Repeat the cornstarch step until no oil shows on the powder.
What about cooking oil on a wool rug?
Wool wicks oil deep into the foundation fast. Blot, apply cornstarch, dwell, vacuum — then call us. Aggressive home solvents on wool dull the dye permanently.