Red wine is a kind of wine, not necessarily red wine. The composition of red wine is quite simple, it is a fruit wine brewed by natural fermentation, and the most content is grape juice. There are many ways to classify wine. According to the color of the finished product, it can be divided into three categories: red wine, white wine and pink wine. Red wine can be subdivided into dry red wine, semi-dry red wine, semi-sweet red wine and sweet red wine, while white wine can be subdivided into dry white wine, semi-dry white wine, semi-sweet white wine and sweet white wine. Pink wine is also called pink wine and rose wine. Yangmei wine is called Yangmei wine.