Why do they say the longer the year, the better? First of all, the newly brewed wine is not good to drink, so it should be sealed in a jar and stored in a place with suitable temperature and humidity for a long time. After a long period of precipitation, the taste of wine will gradually become perfect, which is why there is the term vintage wine cellar. Liquor generally has no shelf life, but not all liquors are preserved as long as possible. For example, after five years, the taste and aroma of some ordinary white wines will become weak. The smell of a good vintage is soft, pure and non-irritating. If you feel it carefully, you will feel that all kinds of complex aromas are closely intertwined.
Secondly, the longer the year, the better, which depends not only on the odor content of wine, but also on the proportional relationship between various esters. For example, high boiling aromatic macromolecules esters in maotai-flavor liquor also play an important role. In the process of liquor fermentation, there are few esters with molecular weight greater than ethyl caproate. Macromolecular esters can only be formed after long-term aging. Moreover, aldehydes in liquor will be continuously oxidized into carboxylic acids. After the esterification of carboxylic acid and alcohol, there will be an aromatic smell, which will make the quality of liquor mellow, so it will be said that the longer the wine, the better.
. Then, if you want to store it for a longer time, you should pay attention to the quality of the wine, because everything will have a shelf life. For example, Luzhou-flavor liquor can achieve good quality after 2~3 years of aging. If the wine is aged for a long time, the alcohol in the wine will reduce volatilization, resulting in poor quality of the wine. On the contrary, Maotai-flavor liquor is characterized by soft aroma, long aftertaste, overnight fragrance and empty cup fragrance. More importantly, the storage environment and tightness. If the seal is not tight, the quality of wine preserved for too long will not be much better, especially the white wine produced in China in the early days. Due to the low production technology and the unique design of packaging, bottle mouth and bottle cap, not all wines can be collected, and even if they are collected, there will be air leakage, which will make the taste incorrect. The longer the wine age, the better, because high-quality maotai-flavor liquor will be preserved for a long time.