How to distinguish the quality of red wine?

Whether it is a "hanging glass" or not, the quality of the red wine cannot be seen. If the red wine is good or not, it needs to be tasted carefully.
Red wine is brewed by natural fermentation, and the grape juice content is the highest, accounting for more than 80%; followed by alcohol, which is naturally fermented from sugar in grapes, accounting for 10%-30%.
In addition, red wine contains more than 1,000 substances such as tartaric acid, pectin, minerals and tannins. Although the proportion of these substances is not high, they are the decisive factor for the quality of wine.
The quality of red wine should be judged from the perspectives of the richness and complexity of the aroma, the richness and balance of the taste, the elegance of the color and the persistence of the aftertaste, and these depend on the alcohol, residual sugar, glycerin, tannin, and acidity. Balance with dry extract (Extract, all non-volatile essences except residual sugar).

Specifically, "balance" refers to the balance of a series of factors such as the level of acidity, the weight and lightness of tannins, the level of alcohol, the weight and lightness of wine, and the level of residual sugar.
Therefore, high-quality and delicious red wines lie in that they can present a balance of internal organizational structure, which makes people have endless enjoyment in taste.

Therefore, instead of entangled in the degree of red wine hanging when drinking, it is better to change the wine glass, and then you taste, you carefully taste, you will taste the taste and charm of red wine.