... .Known as “the king of 5 cereals”, buckwheat is produced in high and cold regions, green ... crop with dual functions of food and medicine. Buckwheat tea is produced by basing on the health ... takng food as medicine”, the raw material is buckwheat from the high and cold regions, and scientifically ... is bright and shinning, the flavor lingers with buckwheat fragrance, the aroma long lasting and it contains ...