Chlorella, a type of green algae, can leave unsightly stains on outdoor tables, especially in humid or shaded areas. To prevent this, follow these practical steps:

1. Regular Cleaning: Wipe your table weekly with a mild soap solution to remove dirt and moisture that promote algae growth.

2. Use Protective Covers: Cover the table when not in use to shield it from rain and damp conditions.

3. Apply Algae-Resistant Coatings: Consider using a sealant or outdoor-friendly varnish designed to repel algae and moisture.

4. Ensure Proper Drainage: Avoid water pooling by placing the table on a level surface or using a slatted design.

5. Natural Remedies: Spray a mixture of vinegar and water (1:1 ratio) periodically to deter chlorella growth without harsh chemicals.

By implementing these strategies, you can maintain a stain-free outdoor table and enjoy its beauty for years to come.