Luo Han Guo is a perennial vine, cultivated in southern of China. Its dried fruits are ellipse or round, with brown or snuff surface and abundant small pale and black hairs. People have used it for centuries for both its sweet flavor and its medicinal property in China. After processed, it can be used as a remedy for colds and congestion of the lung. Nowadays Luo Han Guo is used as a low calorie-sweetening agent in juices or drinks, or it can be made into a desirable beverage.