An ancient woodworking technique found in Japan is known as Shou Sugi Ban. It is the process of heat treating, or burning the wood, cleaning off the residual burnt wood, and coating with tung oil. This technique can preserve wood for about 80 years without further treatment. Although not often found here in America, it is a technique that I have begun learning and using because of its longevity. No, you wont find this at Ikea.