From the Tianbao Cave and Dibao Cave series of Langjiu to the unique cave wine-making culture in Guizhou, the quaint wine in Taiji Cave in Guangde, and the mysterious alcoholic cave wine in Qiliang Cave in Xiangxi ... In addition, there are Guilin Cave Sanhua Wine, Hushadong Protoplasm Wine, Longhu Cave in Northeast Baoqing, Anhui Xianghe Cave Wine, Qingzhou Yunmen Wine Cave Old Wine, Shaanxi Taibai Cave Wine, etc. The process of hiding in caves is carried out in the early stage of brewing. Pit storage is a process of storing wine in pits for two to three years after the completion of the wine-making process, in order to make the wine more supple.