It is said that Gaolu wine originated from Laozi, a great thinker, philosopher and founder of the Taoist school in the Spring and Autumn Period. According to historical records, in the 14th year of Jian'an, Cao Cao stationed troops in Gaolu and recruited famous masters to brew fine wine to comfort and reward the soldiers. In the middle and late Ming Dynasty, Zhang's ancestor, Sangong, made a fortune in business and opened a workshop to brew wine, which was passed down to future generations. Since then, Gaolu wine brewing skills have been passed down from generation to generation, and Gaolu wine has become famous. Gaolu wine, which has a history of more than 2,000 years, contains Taoist cultural style, displays traditional craftsmanship and distinctive local characteristics, and is unique among strong-flavor liquors. In the early days of the founding of the People's Republic of China, Gaolu wine was ordered to be sent to Beijing for Soviet experts to drink. In June 1965, Gaolu Daqu Liquor won the Fuyang Quality Product Award. In 1974, Anhui Province held a wine evaluation meeting in Mingguang, and Gaolu Daqu was rated as the first in the province. In 1982, it was rated as Anhui Famous Liquor. In 1984, Gaolu Chenjiu won the title of Quality Liquor of the Ministry of Light Industry. In 1986, Gaolu Daqu Liquor won the title of "Provincial Quality Food". In October 1993, Gaolu Shuanglunchi won the "Gold Medal of the 40th Paris International Exposition". Gaolu Liquor is well-known in China and sells well throughout the country. The main characteristics of Gaolu Liquor are: using high-quality sorghum as raw material, steamed rice husk as auxiliary material, wheat, barley and peas to make koji, using unique underground mineral springs as brewing water, continuing to mix dregs, mixed steaming and mixed burning, double-wheel fermentation in a century-old cellar, and using traditional brewing techniques to carefully brew. It has its unique product characteristics of "no dry mouth after drinking, no headache after drinking too much". The main features of Gaolu wine brewing process: fermentation with "two flowers and one volt" Daqu, storage period of not less than six months. When using, medium temperature Qu, high temperature Qu and medium and high temperature Qu are used in different rounds according to different proportions. Brewing adopts three rounds of production per year, the first two rounds of fermentation cycle are two months each, and the third round of fermentation cycle is eight months. The production process adopts "three highs and one low" (high starch, high acidity, high water content, low temperature), "three cleans and one control" (steaming raw materials, steaming auxiliary materials, steaming the bottom of the pool, controlling pulp and removing impurities) and unique double-round fermentation. When leaving the cellar, the mash is separated and the slag is stacked. It is distilled with a special pot and steamer, and the wine is distilled with a low fire. The wine is picked according to the quality and quantity. The three types of wine picked are respectively stored in pottery jars for original brewing, mellow fragrance and mellow sweetness. After the storage expires, experts taste and analyze, blend and season, store the original degree, and then package and ship. It takes no less than six years from raw material input to product shipment. It is this set of mature and unique traditional skills that has created the unique and excellent quality of Gaolu Liquor. From Laozi opening a workshop to brew wine, to Cao Cao stationing troops in Gaolu to brew wine and reward the three armies, to Zhang's brewing in the Ming Dynasty, it has been passed down from generation to generation, and has gone through a total of twelve generations in the Ming and Qing Dynasties and the early Republic of China. Until the founding of the People's Republic of China and the establishment of Gaolu Distillery, the inheritance of Gaolu Liquor has a clear context, and the handcraft skills have been continued and developed in the historical time and space of Gaolu. In recent years, some lawless elements in the society have adopted various methods to do everything possible to impersonate and misappropriate the name and unique craftsmanship of Gaolu Liquor, passing off fakes as genuine ones, and deceiving consumers, which has seriously damaged the reputation and image of Gaolu Liquor, and also disrupted the normal market economic order. In order to ensure the quality and characteristics of Gaolu Liquor, maintain the unique "double-wheel" process technology of Gaolu Liquor, and also to ensure consumer demand for Gaolu Liquor and market share, an application for the protection of the traditional handcraft skills of Gaolu Liquor that has been passed down for thousands of years is hereby filed. Information source: Anhui Provincial Intangible Cultural Heritage Protection Center Information source: Anhui Provincial Intangible Cultural Heritage Protection Center