How to Remove Set-In Grease from a Polyester Couch

Set-in grease on a polyester couch is a common frustration. Whether it's from a snack, a cooking mishap, or a body oil transfer, the oily mark can look dark and stubborn. The good news: polyester is a synthetic fabric that resists moisture and stains, so with the right approach, you can often lift the grease without damaging the upholstery.

This guide walks you through a safe, step-by-step method using dish soap and baking soda—two household staples that work well on grease. We'll cover what to do first, how to treat the stain, and what to avoid.

Readers may also find How to Remove Dried Tea from a Wool Rug, How to Remove Fresh Coffee from a Cotton Dish Towel, and How to Remove Dried Coffee from a Wool Rug: A Surface-Safety Guide useful. For more stories like this, browse our Surface Safety section.

Why Dish Soap and Baking Soda Work

Dish soap is designed to cut through grease. It contains surfactants that break down oils, making them easier to rinse away. Baking soda is a mild abrasive that helps lift the stain and absorb excess oil. Together, they form a powerful yet gentle cleaning duo for polyester.

What You'll Need

• Dish soap (preferably a clear, grease-cutting formula)
• Baking soda
• White vinegar (optional, for odor and residue)
• Clean white cloths or paper towels
• Soft-bristled brush (like an old toothbrush)
• Warm water
• Vacuum (for baking soda residue)