The function of raw barley is to remove dampness and strengthen the spleen. It is sweet and slightly cold in nature and flavor. Cooked barley can remove its slightly cooling property. Therefore, most raw and cooked barley are used together to obtain their functions without fear of being too cold.

Coix, Latin name: Coix chinensis Tod. Also known as: coix kernel, coix kernel, and six millet seeds, it is the seed kernel of the grass plant Coix. It is cool in nature, sweet and light in taste, enters the spleen, lung, and kidney meridian, and has the effects of diuresis, strengthening the spleen, removing paralysis, clearing away heat and draining pus. Barley grows in warm and humid Shibian lands, valleys and gullies, and is more common at altitudes below 2,000 meters.

Because of its high nutritional value, barley is known as the "King of Gramineae in the World"; in Europe, it is known as the "Gray of Life and Health"; in Japan, it has recently been listed as a preventive plant. Cancer food, so its value doubled. Barley has the characteristics of being easily digested and absorbed, and its effects are very mild whether used for nourishment or medical treatment.