Pre-treat grass stains with vinegar or rubbing alcohol

For grass stains, apply a mixture of equal parts white vinegar and water, or dab rubbing alcohol directly onto the stain. Let it sit for 30 minutes, then wash in cold water. For stubborn grass stains, make a paste of baking soda and water and scrub gently.

Why It Works

Grass stains are a combination of chlorophyll (green pigment), proteins, and other organic compounds. Vinegar's acidity and alcohol's solvent properties break down chlorophyll molecules and dissolve the binding proteins. These treatments loosen the stain so detergent can lift it out during washing.

Tips

• Rubbing alcohol is more effective than vinegar for set-in grass stains
• Avoid hot water, which can set protein components of the stain
• Enzyme-based pre-treaters (containing protease) work well on grass stains
• Grass stains are common on kids' clothes — treat them the same day they occur