How to Remove Dried Cat Urine from a Cotton Couch

Dried cat urine on a cotton couch is one of the toughest pet stains to tackle. The longer it sits, the deeper it sets into the fabric and padding, and the stronger the odor becomes. But with the right approach and a little patience, you can lift the stain and neutralize the smell without damaging the cotton.

This guide walks you through a safe, step-by-step method using an enzymatic cleaner and baking soda—two products that work together to break down uric acid crystals and remove odors. You'll also learn what to avoid, how to handle fresh versus dried accidents, and when to stop trying.

Readers may also find How to Remove a Fresh Coffee Stain from a Wool Rug, How to Remove a Dried Ketchup Stain from a Polyester Rug, and How to Remove a Fresh Coffee Stain from a Linen Napkin useful. For more stories like this, browse our Pet Stains & Odors section.

Why Dried Cat Urine Is So Stubborn

Cat urine contains uric acid, which forms crystals that bind to fabric fibers. When the urine dries, these crystals become harder to dissolve with regular cleaners. Enzymatic cleaners are specifically designed to break down these crystals, making them essential for dried accidents.

Cotton is absorbent and durable, but it can also hold onto odors and stains if not treated properly. Acting quickly is always best, but even dried urine can be removed with the right technique.

What You'll Need

• Enzymatic cleaner (look for one labeled for pet urine)
• Baking soda
• White vinegar (optional, for odor)
• Clean white cloths or paper towels
• Soft-bristled brush (optional)
• Vacuum with upholstery attachment