A set of Jin dynasty bronze distilling vessels was unearthed in Qinglong County, Hebei Province in 1975. Examination and testing confirmed that wine distillation already existed in China in the Shizong reign of the Jin dynasty.
證諸文物，一九七五年，河北青龍縣出土一套金代銅製的燒酒鍋，經過鑑定和實驗，確定中國在金世宗時，已有蒸餾酒。