Seven models. Liquor and water are collectively referred to as drinkable water such as wine, water and drinks, which are used to entertain guests. This word is mainly used in the catering industry. There are 7 kinds of liquor in Dajin Lake. The chemical composition of liquor is ethanol, which generally contains a small amount of fusel alcohol and esters. The concentration of edible liquor is below 60 degrees (60%), and more than 75% of liquor is medical alcohol after fractionation.