Not big. Mianzhu Daqu old wine bottles are produced by Guo Bin Distillery in Luzhou, Sichuan, all of which are produced on a unified production line, and there is no big gap between wine bottles with the same specifications. Mianzhu Daqu is a Luzhou-flavor liquor made from glutinous rice, rice, wheat, sorghum and corn, with Yufei mineral water containing strontium and low sodium as water-based and carefully brewed by traditional techniques.