1, red wine in the end there is no shelf life? First of all, this issue must be the most concerned. We buy red wine, often in the bottle will see such a label: shelf life of 10 years. That according to this calculation, "82 years of Lafite" is not long expired? In fact, no, this "10 years shelf life" is only in the 1980s according to the special national conditions of our country. In countries where wine is often consumed, there is no shelf life but only "drinkable period", which is the best time to drink a bottle of wine. According to expert research, only 1% of the world's wines have 10 years and above the ability to age, 4% of the wines in 5-10 years, more than 90% of the wine drinking period in 1-2 years, 82 years Lafite Rothschild red wine is so expensive for this reason. So people buy wine in the future, do not dwell on the shelf life.

2, the older the year, the better the quality? According to the introduction of the previous about the shelf life, I believe we have a certain judgment on this issue. Usually, wines that can be preserved for a long time are just a few, and most wines are basically ready-to-drink wines, so we must not be fooled by the vintage of the wine.

3. The higher the alcohol, the better the quality? Many wine lovers will apply the knowledge of liquor alcohol to wine, which is actually unreasonable. The alcohol content of wine reflects the high degree of maturity of the grapes. The higher the ripeness of the grapes, the higher the alcohol content, and to a certain extent, the better the quality of the wine. However, there are some merchants who add extra sugar during the wine fermentation process when the fruit is not ripe enough, and although the alcohol level is higher, the quality of the wine has dropped. Therefore, there is no equalization between alcohol and quality.

4. The deeper the groove, the better the quality? Many friends in the purchase of wine, will deliberately choose the bottom of the bottle groove deeper brand, that the quality of the wine will be better. In fact, there is no basis for this. The purpose of the notch is to precipitate the tartaric acid formed during the aging process of the wine, and that's all. For most wines, they are usually consumed within 3-5 years and do not require decades of aging, so having deep grooves is meaningless, and certainly has nothing to do with the quality of the wine.

5. The darker the color, the better the quality? The color of wine is mainly affected by grape variety, maceration and aging time, which has no direct relationship with its quality. Many wine producers have seized on this psychological preference for dark-colored wines and will purposely select grape varieties or change the brewing method just to cater to the market's preferences.

6. The longer the barrel aging time, the better the quality? When buying wine, sales staff will sometimes introduce: this wine is aged in oak barrels, so the price is high. This time we should pay attention to, not oak barrel aging time is longer, the better the quality of wine.

This is based on the grape varieties, especially for some fresh and delicate varieties of grapes, can not be used for a long time oak aging, which will cause the oak flavor masking the aroma of the grapes themselves, but so that the wine loses its characteristics.