As for the quality of red wine, my opinion is to consider many factors, including quality, place of origin, year, storage method and so on. Choosing red wine also needs to be based on your own taste and use.

Below I will introduce in detail how to treat the quality of red wine and how to choose red wine:

1. Understand the origin and variety of red wine: which country and region does the quality and taste of red wine come from and the influence of varieties. Different producing areas and varieties will bring different characteristics and flavors. For example, red wine from Bordeaux, France, is famous for its rich fruit flavor and complex taste, while red wine from Sangiovese, Tuscany, Italy is rich in fruit flavor and soft in tannins.

2. Observe the appearance: first observe the appearance of red wine. Normal red wine should be clear, dark, shiny and translucent. If there is turbidity or uneven color, it may be a quality problem.

3. Smell: Smell the red wine. If there is a bad smell or the wine is too strong, then the quality of this red wine may be low or there is something wrong.

4. Taste: Try to take a sip of red wine to see if it is soft, rich, mellow, harmonious and lasting. High-quality red wine should have a deep and complex taste and rich layering.

5. Pay attention to brand and wine age: brand and wine age will also have a certain impact on the quality of red wine. Generally speaking, the quality of red wine produced by big wineries is relatively high. The older the wine, the more expensive it may be, but it may also be of better quality and richer taste.

Generally speaking, the selection of red wine needs to comprehensively consider the factors such as origin, variety, appearance, smell, taste, brand and wine age. If you are a novice, it is suggested to start with red wine with high brand awareness and moderate price, and then gradually learn and try red wine from different origins, varieties and ages to increase your tasting experience.