Pistachio milk stains on an outdoor table can be stubborn, but with the right approach, you can restore your furniture to its original condition. Here are some effective methods to tackle the stain:

1. Blot Immediately: Use a clean cloth to blot the stain as soon as possible. Avoid rubbing, as this can spread the stain further.

2. Dish Soap and Warm Water: Mix a few drops of dish soap with warm water. Gently scrub the stained area with a soft brush or sponge, then rinse with clean water.

3. Baking Soda Paste: For tougher stains, make a paste of baking soda and water. Apply it to the stain, let it sit for 10-15 minutes, then scrub and rinse.

4. Vinegar Solution: Combine equal parts white vinegar and water. Spray or dab the solution onto the stain, let it sit for a few minutes, then wipe clean.

5. Hydrogen Peroxide (for light-colored tables): Test on a small area first. Apply a small amount of hydrogen peroxide to the stain, let it bubble, then wipe away.

For persistent stains, repeat the process or consider using a commercial outdoor cleaner designed for your table’s material. Always test any solution on an inconspicuous area first to avoid damage.

Prevent future stains by wiping spills promptly and using a protective cover for your outdoor table when not in use.