Thin layer drying.
Respecting the material,
Wood contains many natural extracts the tree has acquired from the soil. Among the most important of these, especially in woods like oak, maple and ash, is tannin, a substance graced with precious antioxidant properties and thus valuable in both the processing of leather and the making of wine. In the past it was also a substance painters were very wary of, as the wood they were painting on could release it and irreparably damage the nascent art with dark blotches. The same thing still happens today during the very delicate drying phase.
The wood, which contains a great deal of water in the form of sap when it is cut, must gradually and naturally rid itself of this humidity in order for it to become quality parquet. Forced drying procedures can result in the tannin soiling the surface of the wood and detract from its beauty. Many years ago at the plant in France, in an effort to avoid this risk, Listone Giordano developed a special drying technique for thin planks. They were thus able to offer their clients an unaltered product of exquisite purity and unique beauty.