Wood is a natural material that responds to its environment. Teak will gradually fade to a beautiful silvery gray patina as the outside layer of pigment begins to wear away from exposure to the weather. This color change is part of the inherent beauty and character of teak, and we recommend that you allow it to age naturally and simply clean once a year with a mixture of warm water and mild liquid soap. Use a soft bristle brush to clean away accumulated dirt, debris and algae. Do not use a power washer to clean teak.