XO represents the best brandy, which has no shelf life. The longer it is kept, the more valuable it becomes.

XO is a grade. XO means that the wine liquid used in this XO wine has been stored in oak barrels for at least ten years. The previous requirement was at least 6 years. It can be seen that it can be called XO only after it has been stored for such a long time. It cannot be called XO if it has been stored for a short time. Called XO.

For example, Rémy Martin XO is a blend of dozens or hundreds of brandies, but each liquor must be stored in oak barrels for at least 10 years, otherwise it cannot be labeled. for XO. Some of the brandy XO wines sold now are even older, even decades old, just like domestic liquor, which is made from decades-old wine. The price of this kind of wine is very expensive, and the requirements are also very high.

Extended information:

Grade——

The reason why the quality of Cognac exceeds other brandies is not only because of the special distillation skills of the region, but also because The area has good soil, good weather, etc., so the grapes it produces are particularly good. All brandy distilleries use letters to distinguish their brands. Examples are as follows:

1. E stands for ESPECIAL (special);

2. F stands for FINE (good);

3. V stands for VERY (very good);

4. O stands for OLD (old);

5. S stands for SUPERIOR (superior) ;

6. P stands for PALE (light color and old);

7. X stands for EXTRA (exception).

Baidu Encyclopedia-XO