2. The preservation of Lafite not only directly affects its taste. For collectors, it also determines the appreciation potential of wine. Generally speaking, we should pay attention to the following aspects when preserving wine in our own home: temperature, humidity, light and vibration. The first important factor is temperature. The optimum storage temperature of wine should be about 65438 03℃. It is best to keep the temperature constant, otherwise it will do great harm to the quality of wine. With the increase of temperature, the time required for wine to mature will be shortened, the flavor of wine will become rough, and wine may deteriorate due to excessive oxidation. Humidity mainly affects cork, and the humidity is generally 60%-70%. If the humidity is too low, the cork will dry, which will affect the sealing effect, let more air contact with the wine, accelerate the oxidation of the wine, and lead to the decline of the quality of the wine. Of course, too high humidity is not good, and moldy cork will also destroy the quality of wine. Ultraviolet rays in light are also very harmful to wine, which is also one of the chief culprits to accelerate the oxidation process of wine. Therefore, wines that want to be preserved for a long time must be placed in a place that is protected from light. Wine is in a bottle, and its change is a slow process. Vibration will accelerate the ripening of wine, and of course, the result will also make the wine rough. So stay away from the vibration and don't move frequently. There is also the placement of wine bottles. Everyone knows that wine should be placed horizontally. In fact, you can also tilt the bottle mouth upwards 15 degrees. For red wine that needs to be stored for a long time, it is not advisable to put the bottle mouth down. Because wine will precipitate when it is stored for a long time, it will gather at the bottom of the bottle when it is laid flat or the bottle mouth is slightly tilted upward; If the bottle mouth is inclined downward, the sediment will gather in the bottle mouth and stick there for a long time. When pouring wine, it will be poured into the cup with the sediment, which will affect the taste of the wine. For the wine that has been opened but not finished, the ideal method is to drain the air from the bottle first, and then plug it, so that it can be kept for one week. It is more economical to replace the leftover wine with a small bottle, so that there is no air in the bottle and it can be stored for another 24 hours. However, the wine that has been opened should be finished as soon as possible, because the longer it is preserved, the faster the flavor will be lost.