What is the difference between red wine and wine?

This is red wine. Red wine is the general name of wine, because when wine first arrived in China, most of it was red wine, so it was called red wine. Red wine can also be understood as red wine, which is a kind of wine and its color is red. Wine is made by collecting and squeezing grapes. There are hundreds of different varieties of grapes. Once the grapes are squeezed, the natural sugar in the grapes will combine with yeast (yeast naturally exists in grape skins and can be supplemented by winemakers), which will lead to alcohol production by fermentation. Wine classification: 1. Dry wine: The sugar content is less than 4g/L, so it can't taste sweet, and it has a clean, elegant and harmonious fruity and alcoholic aroma. 2. Semi-dry wine: The sugar content is 4~ 12g/L, which is slightly sweet. The taste of wine is clean, elegant and round, and the aroma of fruit and wine is harmonious and pleasant. 3. Semi-sweet wine: The sugar content is 12~50g/L, and it has sweet, smooth and pleasant fruity and bouquet. 4. Sweet wine: The sugar content is more than 50g/L, the taste is sweet, mellow, refreshing and smooth, and the fruit wine is harmonious.