The mushroom cultivating project started in 1988 when His Majesty got the idea to bring the straw left over from the pilot plot, where the first farming project was conducted in Chitralada Villa, and the bran left over from the rice milling, for a study about their use in cultivating mushroom. Cooperation and support were obtained from both the government and the private sectors, including Chulalongkorn University and Aranyik Mushroom Farm. Starting from the cultivation of straw mushrooms and fairy maiden mushrooms, the operation was extended to the development of a fungus named glossy ganoderma (Ganoderma lucidum), an important medicinal herb used to treat diseases in the respiratory and circulatory systems. The fungi were just dried by heat and bagged for sale. Since 1996 they have been extracted and put into capsules after going through a process of gamma ray radiation to check the growth of various micro-organism that may have gone into the production line.