Hanging a cup in English is called tears or legs. Hanging a wine glass is obviously not directly equivalent to the quality of wine. Simply think that "wine tears" flow much and slowly is good wine, unless you know this bottle of wine very well and know its other passwords. Hanging a wine glass only reveals the sugar content of this bottle of red wine, and whether the grapes used to make wine contain more oily substances, and its alcohol content may be higher.

The degree of hanging glass directly reflects two problems: one is the viscosity of this red wine, and the other is its surface tension. The real judgment of good or bad is not just hanging a cup, but tasting it yourself.