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What is the degree of good wine?

The European Union stipulates that the wine precision of still wine should reach at least 8.5%, and wine with alcohol content of more than 14% belongs to high alcohol precision wine. In fact, taking Italian wine as an example, most classic high-quality wines have an alcohol level of more than 14 degrees, and the trend of encouraging delayed harvest in cold marginal production areas also makes the wine quality in these areas more and more accurate.


The process of alcohol fermentation is the process that sugar is converted into alcohol and carbon dioxide under certain conditions


For the whole process of wine making, grape harvest is a very important link. Because when to pick grapes is not only directly related to the final wine quality and style, but also related to the chemical composition and stability of wine. Among them, one of the important factors related to the stability of wine is alcohol content, and one of the key conditions to determine the alcohol content of wine is the sugar content of grape fruit at harvest.


When deciding when to pick grapes, every winemaker will pick grapes when they reach a specific sugar content and flavor substance concentration according to the winery's brewing method and consistent style. This is the first step in determining the alcohol content of wine. Some people are biased against high wine precision, thinking that high wine precision will affect the taste of wine. In fact, for those wines with a very balanced structure, even if the alcohol accuracy is higher than 15 degrees, it will not make people feel that the alcohol is too prominent.


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Due to the different characteristics and year conditions of the production area, vineyard managers or winemakers will choose different harvest times, and sometimes even be forced to harvest in advance to avoid bad weather. For example, if the grapes of a certain year develop a mature flavor in a very short time and need to be harvested as soon as possible, there will be insufficient sugar accumulation at this time, and the accuracy of the final wine will be low; In some years, the flavor substances mature slowly, so it needs to be harvested late, so the precision of the wine will be higher.


The most troublesome thing for winemakers in hot regions is to find ways to reduce the alcohol content of wine. For example, the California wine region allows wineries to reduce the alcohol content of wine by adding water, but high-quality wineries will not easily take such artificial intervention measures. For winemakers in cold marginal regions, the most common problem is that grapes cannot mature fully, especially some late maturing varieties, such as Cabernet Sauvignon in Bordeaux, France. However, many modern winemakers in these regions advocate that the potential wine precision has been improved by delaying the harvest. Tyco cellar


In addition, the way of making wine is also the key to determine the accuracy of wine. For example, some wine makers will use the method of interrupting alcohol fermentation to obtain perceptible residual sugar, so as to make sweet wine.


In short, the alcohol level is not an absolute factor to measure the quality of wine. The really good wine must be those delicate, harmonious, complex and balanced wines.