There are many ways to dry wood. According to the discharge method of moisture in wood, it is divided into three types: thermal drying, mechanical drying and chemical drying. The actual wood production process uses thermal drying. Thermal drying can be divided into atmospheric drying (referred to as air drying, also known as natural drying) and artificial drying according to whether the drying conditions are artificially controlled or not. Artificial drying can be divided into kiln drying (including low temperature, conventional and high temperature kiln drying), dehumidification drying, solar drying, vacuum drying, high frequency and microwave drying, infrared radiation drying and contact (hot pressing) drying. These drying methods are outlined below.

Broadly, there are two methods by which wood can be dried: natural drying or air drying, and artificial drying. Wood drying kiln provides a means of overcoming the limitations imposed by erratic weather conditions. In kiln drying as in air drying, unsaturated air is used as the drying medium. Almost all commercial woods of the world are dried in industrial kilns. A comparison of air drying, conventional kiln and solar drying is given below:

Working principle of wooden cans: By using a series of operations such as vacuum, pressure, and heating, a certain concentration of anti-corrosion, flame-retardant, and dyeing solution is injected into wood cells through vacuum, high pressure, and frequency pressure to achieve anti-corrosion, mold, moth, termite, flame retardant, and dyeing effects.