XO indicates the year of sprinkling, such as China's ten-year brewing and twenty-year brewing.
XO is a grade representation of grape distilled liquor (brandy), which is the abbreviation of Extra Old, meaning "extremely old".
Brandy is roughly divided into three grades:
The first grade is V.S, that is, three stars. According to relevant French laws, the minimum age of the original wine when blending cognac is at least 1.5 years.
The second grade, V.O, V.O.P, V.S.O.P, etc., the minimum age of the original wine at the time of blending is at least 4-4.5 years.
The third grade, X.O, Napoleon, Exatra, etc., is very old brandy, called fine or best, and the minimum age of wine when blending is over 6 years.
Therefore, X.O is different from vintage wine, which refers to non-distilled wine made from grapes harvested in a certain year.
XO is not a brand, it is a grade for spirits made of grapes, such as cognac. It depends on how long the wine has been stored in oak barrels. XO is the longest storage time, XO is the English abbreviation of aged wine, followed by XOP and VS, and Napoleon is the shortest storage time.