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Why is my Stain Remover too runny or too thick?Updated 7 days ago

TL;DR: If Stain Remover feels runnier or thicker than usual, it is almost always temperature. Bring the bottle back to room temperature and shake it gently, and the consistency comes back. Cleaning performance is unaffected either way, because the rest of the formula has not changed.

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Koh Stain Remover
Koh Stain Remover with Foaming Spray Bottle

Why does the consistency change?

Stain Remover contains xanthan gum, a thickener that keeps the ingredients evenly suspended in the bottle. Xanthan gum goes thinner in heat and more gel-like in cold, so a warm delivery van or a cold shed can change how the spray feels. Cleaning performance is unaffected, because the rest of the formula has not changed.

✓ Temperature changes the consistency

Stain Remover contains xanthan gum, a thickener that keeps the ingredients evenly suspended in the bottle. Xanthan gum goes thinner in heat and more gel-like in cold, so a warm delivery van or a cold shed can change how the spray feels without changing how it cleans.

Heat means thinner Cold means thicker Cleaning unaffected

How do I fix it?

Leave the bottle at room temperature for 30 to 60 minutes, then shake it gently to remix. Test the Foaming Spray Bottle: a fine, even foam is what you are after. If the consistency has not come back, give it longer. A cold bottle can take a couple of hours to settle back to room temperature.

✓ Fix it in three steps

1

Leave the bottle at room temperature for 30 to 60 minutes.

2

Shake it gently to remix.

3

Test the Foaming Spray Bottle. A fine, even foam is what you are after.

If the consistency has not come back, give it longer. A cold bottle can take a couple of hours to settle back to room temperature.


Where should I store it?

Store Stain Remover sealed and upright in a cool, dry spot out of direct sunlight, ideally between 15 and 25 degrees Celsius. Inside the house beats the garage or the shed. Keep it out of hot cars, off sunny windowsills, and away from heaters, ovens and dryers. Stored properly it stays shelf stable for 12 months.

✓ Ideal storage

Sealed and upright

Cool and dry, out of direct sunlight

A steady room temperature between 15 and 25 degrees Celsius

Inside the house rather than in the garage or shed

⚠ Places to avoid

Hot cars in summer. Sunny windowsills. Unheated sheds and outdoor storage. Anywhere above or beside a heater, an oven or a dryer.

Stored properly, Stain Remover stays shelf stable for 12 months and the consistency stays predictable.

No hot cars No windowsills No unheated sheds

Koh Stain Remover

Stain Remover

Spray-on pre-treat for stubborn stains. Spray, wait 5 to 10 minutes, then wash as normal. Dermatest tested and Sensitive Choice approved.

Koh Stain Remover Starter Kit

New at Koh?

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

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Last reviewed: September 2026 · Koh Australia

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