How to Remove Grass Stains: The Complete Guide
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Don't rub — it spreads the chlorophyll.
Before You Wash
Remove any solid debris. If fresh, blot gently with a damp cloth. If dry, brush off loose particles before treating. Whatever you do — don't rub. Rubbing grass into fabric spreads the chlorophyll and makes the stain significantly larger.
How to Wash
Apply Spill That detergent, work in gently with your fingers, and leave for 10 minutes. Wash at 40°C. For whites, dry in direct sunlight after washing — the UV light finishes the job naturally and is often more effective than any bleaching agent.
Pro Tip
Grass stains are tannin-based. Enzyme detergents like Spill That break them down more effectively than bleach or alkaline soaps — which can actually set the green pigment into certain fabrics.
Why Grass Stains Are Tricky
Grass stains are a combination of chlorophyll (the green pigment), protein, and other organic compounds. The chlorophyll is particularly stubborn because it bonds readily to natural fibres like cotton and linen.
The key is using the right chemistry — enzyme-based detergents break down the protein component, which in turn releases the chlorophyll's grip on the fabric. Standard detergents often miss this step entirely.