The Fairness Cup was originally a drinking game prop, and Gu Ying was a high-quality party expert!

“A warm heart is like boiling water, tea cannot match wine; a subtle charm is like a cloud, wine cannot match tea.” Tea and wine have profoundly shaped the Chinese way of life, aesthetic taste, and social etiquette. There are many legends about winemaking, such as the monkey winemaking legend, the Yellow Emperor winemaking legend, the Jin Dynasty Yi Di winemaking legend, and the Du Kang winemaking legend. Chinese winemaking has gone through the technical stages of naturally fermented fruit wine, brewed grain wine, and distilled wine. The "Beishan Wine Classic" is a theoretical and technical monograph on winemaking written by Zhu Hong in the Song Dynasty. During the Shang and Zhou Dynasties, rice wine was brewed in large quantities, and China invented the unique method of compound fermentation with yeast. The Han Dynasty used the feeding method, and the Song Dynasty developed it into a method where yeast and rice were put into the vat simultaneously. Distilled wine appeared in China as late as the Yuan Dynasty, and distilled wine was revered as legal wine during the Yuan Dynasty, with grape brandy being the most precious. The Yuan people called distilled wine "Arak." Drinking vessels were mostly ear cups, cups, stands, and trays. The Han Dynasty mainly used zun to hold wine, and tubular wine pourers appeared in the mid-Tang Dynasty. Common wine storage vessels were long-necked bottles, called "jing bottles" by the Song people (called "mei bottles" after the Ming Dynasty). The Fairness Cup, also known as the "Warning Cup," is a prop used for drinking games to add fun. It does not leak when the water is shallow, but leaks completely when full, reflecting the ancient Chinese concept of "fairness" in objects. The custom of drinking "hejin wine" originated in the pre-Qin period. In the Song Dynasty, newlyweds used two wine cups when drinking "hejin wine," so it was also called "cross-cupped wine." After drinking half, the couple would exchange cups and drink the rest, then place the cups one upright and one upside down under the bed, symbolizing a harmonious marriage. The Zhou people used wine to worship heaven, earth, and ancestors, and to offer sacrifices to the four seasons and directions. The custom of offering tea as a sacrifice can be traced back to Emperor Xiao Ze of the Southern Dynasties. Wine is called the "chief of a hundred medicines," and the silk book "Fifty-Two Disease Prescriptions" unearthed from the Mawangdui Han Tomb records forty wine therapy prescriptions. The Yushan Elegant Gathering hosted by Gu Ying was the largest, longest, and most attended elegant gathering of the Yuan Dynasty. During the gathering, literati recited poems, appreciated music, and admired antiques, often accompanied by drinking and tea-tasting activities.