Thermowood: The molecular structure of wood is altered in a kind of “baking” process at high temperature. The wood sugar is caramelized and the pores are closed. Exposure to heat gives the wood a fine, dark color. Wood processed in this way is called thermowood. It absorbs little or no water and is thus practically insensitive to moisture. It is ideal for all products used in areas where wood is exposed to high moisture levels – from baths to saunas.