Verdigris, the greenish-blue patina that forms on copper, brass, or bronze surfaces, can be both a cosmetic and structural concern for outdoor tables. To prevent this natural oxidation process, follow these practical steps:

1. Regular Cleaning: Wash your table monthly with mild soap and water to remove dirt, moisture, and pollutants that accelerate oxidation. Dry thoroughly afterward.

2. Apply Protective Coatings: Use clear lacquer or wax specifically designed for metal surfaces. These coatings create a barrier against moisture and air, slowing down verdigris formation.

3. Avoid Harsh Chemicals: Chlorine and acidic cleaners can strip protective layers. Opt for pH-neutral cleaners instead.

4. Store Properly in Winter: If possible, move metal tables indoors during wet or snowy seasons to minimize prolonged moisture exposure.

5. Use Covers: Invest in a waterproof cover for your outdoor table when not in use, especially during rainy periods.

For existing verdigris, gently scrub with a mixture of vinegar and salt or a commercial metal cleaner, then reapply protective coatings. With consistent care, your outdoor table can remain verdigris-free for years.