Raw material is red wine red wine component of the element . Before introducing the raw red wine , red wine, first of all the elements need to form a brief introduction. Red wine may include four elements in general .

A) sugar
Mainly refers to glucose , its role is of moderate wine , soft wine . Glucose is a reducing substance in the brewing process, it can be oxidized to acid , to increase the potent liquor .

B) the acidity
Mainly refers to the tartaric acid , which is obtained by oxidation of sugar to the . Its role is mainly to improve wine spirits , wine feeling heavy .

C) tannin
A kind of special astringent taste compounds , their effects are mainly making red wine is more refreshing , more strongly . Tannin is a positive component , mainly from the grape skin , grape seeds and grape stems , the more time is brewed from the oak into the wine in the wood tannins . It is the characteristic expression of red wine , while red wine is the most important element . Young tannic acid and not more often smooth , so need to go through red wine aged for more mature tannins , this red wine to reach its best status . (But not all red wine can be aged , it depends on how each wine is brewed , usually after the brewing barrel aged red wine can . )