Carpet & Upholstery
How to Remove Set-In Grease from a Polyester Couch
Set-in grease on a polyester couch can leave a dark, oily spot, but you can lift it with dish soap and baking soda. Here's a practical guide for set-in stains, with polyester-specific precautions.
Part 2: Safer action steps
Step-by-Step Instructions
- Blot up any excess grease. If the stain is fresh, use a clean cloth to gently blot the area. Avoid rubbing, as that can push the grease deeper into the fibers.
- Apply dish soap directly to the stain. Squeeze a small amount of dish soap onto the greasy spot. Use your fingers or a soft brush to work it in gently, covering the entire stain.
- Let it sit for 10-15 minutes. This gives the dish soap time to break down the grease.
- Blot with a damp cloth. Dip a clean cloth in warm water, wring it out well, and blot the area to lift the soap and grease. Repeat as needed, using a fresh part of the cloth each time.
- If the stain remains, make a baking soda paste. Mix 3 parts baking soda with 1 part water to form a thick paste. Apply it to the stain and let it dry completely (this may take a few hours).
- Vacuum up the dried paste. Once dry, vacuum the area to remove the baking soda. The paste should have absorbed some of the grease.
- Repeat if necessary. For set-in stains, you may need to repeat the dish soap and baking soda steps. Be patient—grease can be stubborn.
- Rinse with a vinegar solution (optional). Mix 1 part white vinegar with 2 parts water. Dampen a cloth with the solution and blot the area to remove any soapy residue. Then blot with a dry cloth.
What Not to Do
- Avoid heat. Do not use a hair dryer, iron, or hot water on the stain, as heat can set the grease permanently.
- Avoid rubbing. Rubbing can damage the polyester fibers and spread the stain.
- Avoid harsh chemicals. Bleach, ammonia, or strong solvents can discolor or damage polyester.
- Don't over-wet the couch. Excess moisture can soak into the padding and lead to mold or mildew.
Fresh vs. Set-In Stains
Fresh grease is easier to remove because it hasn't had time to penetrate the fibers. For fresh stains, you can often skip the baking soda paste and just use dish soap. Set-in grease, on the other hand, may require multiple treatments and a longer soaking time. The baking soda paste is especially helpful for set-in stains because it draws out the oil as it dries.