As one of the most important taste characteristics of red wine, she has been bothering us on the wine table. Because, as human beings, we obviously don't like the astringency and astringency of tannin, but we have to rack our brains to understand her, describe her and even look forward to her.

Who makes tannins so important?

For example, tannins are to wine what bones are to the body. They support the soft body and give it strength and confidence. High-quality tannins will give wine tighter muscles and higher aging value, thus obtaining a rich and layered "wine health". No wonder some people say that if red wine has a soul, it must be given by tannins.

So what exactly is tannin?

Tannin is a phenolic biomolecule with astringent taste, which exists in many fruits and plants (such as apples, coffee and tea). On the one hand, it can prevent the fruit from being eaten before it is ripe, on the other hand, it can regulate the growth of the plant itself. When the fruit is not fully ripe, tannins will appear astringent and astringent. When we drink some wine, the instant tightness in our mouth is caused by the astringency of tannins.

Tannin actually has many functions, such as making the color of wine more stable and making wine fight against the biggest enemy (oxygen). She sacrificed her edges and corners to become a clingy leprechaun and a beautiful and slender "chain" around the wine, with a rounder taste, more complex aroma and a longer aftertaste.

However, tannins are not always good. When wine is made from immature grapes, tannins will become rough. Such tannins are extremely stubborn and are not particularly helpful for wine aging. On the other hand, a wine contains a lot of tannins from oak, which will partially polymerize in the mouth, making the mouth dry and unpleasant.

In a word, tannin is a good friend of red wine and a life-saving pill. What is done well is the legend of Lafite in 1982, and what is not done well is the cheap bitter wine.

Just like a person's stubborn temper, if it is used well, it will be Du, and if it is used badly, it will be a crow in the gang, just waiting to jump into the street.

Finally, a warm reminder: tannins can't smell! If someone claims to know the content of tannin by smelling wine, he will pretend to fail and die.