Kaoliang liquor, Gaoliang liquor or sorghum liquor is a strong distilled liquor of Chinese origin made from fermented sorghum. It is a type of unflavoured baijiu. The liquor originates from Dazhigu (大直沽, located east of Tianjin), first appearing in the Ming Dynasty. It is now primarily made and sold in China and Taiwan and is also popular in Korea, where it is called goryangju (hangul: 고량주; hanja: 高粱酒) or bbaegal (which is originates from Chinese character 白乾). Kaoliang is an important product of the islands Kinmen and Matsu which are part of the Republic of China (Taiwan). Kaoliang ranges usually between 38 and 63 percent alcohol by volume. At present, world’s highest alcohol content of kaoliang liquor is up to 92%.
Kinmen Kaoliang Liquor is one of the most popular brands of kaoliang in the Republic of China. As its name indicates, it is produced on the island of Kinmen. The mainstays of the range are the standard 58 percent and 38 percent alcohol bottlings.
Yusan Kaoliang Chiew (Chinese: 玉山高粱酒; pinyin: Yùshān Gāoliáng Jiǔ) is produced by the Taiwan Tobacco and Liquor Corporation. It is named after the highest mountain in Taiwan, Yushan. One of the most notable products in the range is an "X.O." kaoliang aged for five years in tanks before bottling.
Tunnel 88 Kaoliang Liquor (Chinese: 八八坑道高粱酒; pinyin: Bā Bā Kēngdào Gāoliáng Jiǔ) is produced by the Matsu Distillery on the island of Nankan, part of the Matsu archipelago. The name is derived from the name of an abandoned military tunnel which the distillery took over as storage space for their kaoliang and aged rice wine. All of the distillery's aged kaoliangs are stored in the tunnel for at least five years.