2.3.2. Artificial Seasoning

Artificial Seasoning is a faster and more controlled method using external means.

Artificial seasoning is designed to quickly reduce moisture content in wood. Unlike natural seasoning, which takes a long time and depends on weather conditions, artificial methods allow for precise control over temperature and humidity. This results in a more uniform drying process, helping to prevent warping and cracking.

Think of artificial seasoning like cooking food in a microwave compared to cooking it on a stove. The microwave speeds up the cooking process, allowing you to enjoy your meal quicker with precise control over the heat, just as artificial seasoning does for wood.

a. Kiln Seasoning • Wood is placed in a kiln chamber with regulated temperature and humidity. • Involves drying schedules depending on species and thickness. • Yields well-seasoned wood in days or weeks.

Kiln seasoning involves placing the wood in a specially designed chamber, called a kiln, where temperature and humidity are carefully controlled. This method uses heat to help evaporate moisture from the wood quickly, which can be tailored according to the type of wood and its thickness. As a result, wood is typically ready for use much faster than with natural seasoning, sometimes in just a few days.

Imagine using a clothes dryer instead of hanging clothes outside to dry. The dryer uses heat to speed up the drying process significantly compared to air drying outside, just like a kiln does for wood.

b. Boiling or Water Seasoning • Logs are immersed in hot water or steamed to remove sap. • Followed by air drying. • Effective for certain hardwoods.

Boiling or water seasoning involves submerging logs in hot water or using steam. The heat helps to remove sap and moisture from the wood. After this process, the wood is usually air-dried to remove any remaining moisture. This method is particularly effective for certain types of hardwoods, making them more workable and reducing the likelihood of defects later.

Consider how boiling vegetables makes them softer and more palatable. Just as boiling helps extract unwanted components from vegetables, boiling wood helps eliminate moisture and sap, preparing it for use.

c. Chemical Seasoning • Salts or chemicals like urea, sodium chloride, or boric acid used. • Speeds up moisture removal. • Reduces fungal and insect attacks.

Chemical seasoning uses specific salts or chemicals to speed up the drying process by enhancing the removal of moisture. Additionally, these chemicals help protect the wood against fungi and insects, prolonging its life. This method is beneficial for wood that may be exposed to adverse conditions.

Think of how certain cleaners not only clean surfaces but also protect them against grime and mildew. Similarly, chemical seasoning not only aids in drying wood but also shields it from pests and decay.

d. Electrical or Microwave Seasoning • High-frequency electric or microwave waves used to heat the moisture internally. • Rapid but expensive; used for valuable timber.

This advanced method uses high-frequency electric or microwave waves to heat the moisture within the wood directly. The heat causes the moisture to evaporate more quickly than other methods, making it a fast option for valuable timber. However, this process can be costly and is typically reserved for high-quality, expensive wood products.

It's similar to how a kettle heats water quickly with microwave energy, allowing you to boil your water much faster than on a stovetop. While it’s effective, it can be more expensive, just as microwave seasoning can be for timber.

--