When people talk about and evaluate wine, they often mention the word "body". What is the concept of wine body for wine?
　　
People are fat and thin, and the wine body is also plump and thin. In short, wine body refers to the weight and texture of wine in the mouth, which is mainly perceived through the tongue. According to the sense of weight perceived by the mouth, the wine can be roughly divided into three types: light, medium and full. The difference between them can be associated with the taste of skimmed milk, whole milk and cream.
　　
The weight of wine usually depends on the alcohol content, sugar, glycerin, tannin and acidity in the liquor. Although the content of these components largely depends on the characteristics of grape varieties, it is also related to the climatic conditions of grape growth and wine making processes, such as mud aging, barrel stirring, malolactic fermentation and barrel aging. Generally, grapes in warm climate have higher maturity, and the alcohol content of the wine increases accordingly, so the wine is fuller. On the contrary, the wine produced in cool climate regions is lighter.
　　
    Generally speaking, the higher the alcohol content, the fuller the wine will be. Among them, most of the wines with alcohol content less than 12.5% have light body, while the wines with alcohol content between 12.5% and 13.5% tend to have medium body, while the wines with alcohol content higher than 13.5% usually have full body. Therefore, before tasting a wine, you can make a preliminary evaluation of its body by checking the alcohol level on the wine label. In addition, the wine body can be identified by the following methods:
　　
    1. Observe the color
　　
    Wine with deep color tends to have fuller body, while wine with light color tends to be lighter. For example, compared with the fuller Chardonnay White wine, the lighter everlasting longing for each other Blanc white wine is lighter in color, and the lighter Pinot Noir red wine is also lighter in color compared with the darker Cabernet Sauvignon Red wine. Of course, this method can only be used as an auxiliary form to judge the wine body. After all, there are not a few wines with light color but full body like Nebbiolo.
　　
    2. Observe the cup hanging phenomenon
　　
    Gently shake the wine glass, wait for the wine to circle in the glass for several times, and then stop. After a moment, there will be rows of curved or strip-shaped wine falling along the glass wall, forming wine legs or wine tears, which is the so-called phenomenon of hanging the glass.
　　
    In fact, the phenomenon of hanging glasses is related to the alcohol accuracy and sugar content in the liquor: wine with high alcohol accuracy is easier to hang glasses, while wine with more sugar content is more viscous, and the wine tears formed fall slower. Therefore, if the wine tears are more obvious, viscous and stay longer, it means that the alcohol and sugar content in the wine is higher, which also means that the wine is fuller and thicker.
　　
    3. Tasting at the entrance
　　
    The most appropriate way to judge whether the wine is full or not is to taste it personally and feel the weight and texture of the wine in the mouth. Light bodied wine usually gives people a sense of thin, and its weight is between water and skimmed milk; Medium bodied wine is between skimmed milk and whole milk; Full bodied wines are usually thicker and richer, which is closer to the feeling of full fat milk.
　　
    Although the wine will become fuller with the increase of sugar content, there are exceptions to everything. Italian high-quality Brunello and Barolo wines are dry, but they have a very full body, while Asti (low alcohol) sparkling wine is very light although it tastes sweet. In addition, the relationship between acidity and wine body is different from the relationship between other components in wine and wine body. The higher the acidity, the lighter the wine body tends to appear, and the feeling it gives is also more refreshing. However, this refreshing feeling often affects people's judgment of the wine body, making the full-bodied wine appear lighter than it actually is. Therefore, when tasting, we should comprehensively consider the major elements in the liquor in order to more accurately describe the weight of the liquor.