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Why is the stain still there after using Stain Remover?Updated 4 hours ago

TL;DR: Some stains need a second go. Reapply Stain Remover, wait 10 to 15 minutes, gently agitate with a soft brush, then wash again. Don't put the garment in the dryer or use a hot iron until the stain has fully gone, as heat can set stains permanently.


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Koh Stain Remover before and after
Koh Stain Remover with Foaming Spray Bottle

Why might it need a second go?

Stain Remover works through enzymes that need time and moisture to lift the stain. If a stain is old, has already partially dried, or has been through a dryer, a single application may not reach all the way through. Complex stains like ground-in grass, makeup, or sauce and dairy spills often benefit from a second round. A repeat application with a longer dwell time almost always finishes the job.

✓ Why some stains take more than one go

Stain Remover works through enzymes that need time and moisture to lift a stain. If the stain was old, had already partially dried, or had been through a dryer before treatment, a single application may not reach all the way through.

Complex stains like ground-in grass, makeup, or sauce and dairy spills often benefit from a second round. A repeat application with a longer dwell time almost always finishes the job.


How do I fix it?

Spray the stained area again with Stain Remover from the Foaming Spray Bottle. Wait 10 to 15 minutes. Gently agitate with a soft brush or cloth. Then rewash following the garment care label and a full rinse cycle. Don't put the garment in the dryer or use a hot iron until the stain has fully gone — heat can set stains permanently. For a stain that still won't shift after two rounds, try one more pass with a 20 to 30 minute dwell, accept that heat-set stains may not fully come out, or take valuable items to a professional cleaner.

✓ Quick fix in 4 steps

1

Spray the stained area with Stain Remover from Foaming Spray Bottle.

2

Let it sit for 10 to 15 minutes.

3

Gently agitate with a soft brush or cloth.

4

Rewash following the garment care label and a full rinse.

✓ Tips for better results

Treat stains as soon as you can. Fresh stains lift faster than set-in marks. Use only what you need; overusing product doesn't improve cleaning. If the fabric is unfamiliar, spot-test first on a hidden area.

Treat fast Spot-test first Repeat if needed

⚠ Avoid heat until it's gone

Don't put the garment in the dryer or use a hot iron until the stain is completely gone. Heat can set stains permanently. Avoid use on wool, silk, cashmere, alpaca, mohair, rayon, viscose, and linen — see the fabric compatibility article for the full list and what to use instead.

No dryer until gone No hot iron Not for delicate fibres

✓ When a stain still won't shift

Try one more pass with a 20 to 30 minute dwell. Longer contact time helps for older or set-in stains.

If the garment has already been through a dryer, the stain may be heat-set. These are difficult for any product to remove fully.

For valuable or sentimental items, a professional cleaner is the best next step.


Koh Stain Remover

Stain Remover

Spray-on pre-treat for stubborn stains. Spray, wait, then wash.

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Stain Remover Starter Kit pairs Stain Remover with the Foaming Spray Bottle for targeted application.

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Last reviewed: May 2026


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