Abstract: The invention relates to a method for timber processing during which the wood, such as sawn wood that is prepared for seasoning is dried in a kiln in a manner known per se at a temperature of between about 40.degree. C. and about 100.degree. C., to a moisture content of not more than 30%.Nitric acid is mixed with an aqueous solution an alkali earth metal salt, and this mixture is sprayed into the drying kiln at least once. The spray loosens the pectin of the fiber that blocks the evaporation of the moisture, while the alkali earth metal is being built into the wood fibers.