When brewing white wine and red wine, the grape raw materials used are slightly different, but the nutritional value is the same. Red wine is made from the skin, pulp and juice of red grapes. Deep red or bright red in color, sweet and fragrant. White wine is made by fermenting white grapes or red grapes. Light yellow or golden color, bright liquid crystal, pure and refreshing taste. In addition, in wine, there is also a kind of "pink wine", which is made from red grapes. Its color is pink and rose, and its taste is between red and white, which is close to liquor. The difference between white wine and red wine. First, the brewing process is simple. White wine is made by selecting white grapes or wine grapes with thin skins, separating skins and juices, and fermenting pulp. Red wine is made from grapes with red skin and white meat or red skin and red meat. The peel and juice are mixed and fermented, and then separated and aged. Therefore, liquor is an alcoholic beverage made by alcoholic fermentation of grape juice, and grape juice has no impregnation effect on the solid part of grapes during fermentation. In the process of red wine fermentation, alcohol fermentation and solid impregnation coexist. Therefore, the color, luster and taste of the two wines will be different. Second, the color Because red wine is fermented from grapes with red skin, white meat or red pulp, wine contains colored substances in the skin or pulp, so the color is generally deep ruby red, ruby red, purple red, deep red or brownish red. Liquor is made by peeling and fermenting grapes with white skin and white meat or red skin and white meat, so its colors are mainly colorless, light yellow with green, light yellow, straw yellow, golden yellow and so on. Third, the nutritional value of white wine and red wine contain vitamin B, riboflavin, niacin, acid reflux, benzoic acid and other nutrients, but the proportion of red wine is higher. At the same time, because liquor is brewed from grape juice, the tannin content is relatively low; Red wine is brewed with peel, pulp and juice, and its tannin content is relatively high. So generally speaking, the quality of red wine is more stable and the tasting period is longer. Fourth, the drinking temperature in the drinking temperature, professionals have done experiments. Red wine is best at 16- 18℃, and white wine is best at 8- 10℃. V. Taste Red wine contains more sugar, moderate acidity, sweet taste and slightly sour taste. Liquor has slightly higher acidity, pure taste and sweet and sour taste. To sum up, the difference between white wine and red wine mainly lies in brewing technology, color, nutritional value, drinking temperature and taste. You can choose the most suitable wine according to your own preference or actual situation.