The classification of whiskey is mainly based on raw materials, storage time, alcohol content, and national origin.
According to the different raw materials, whisky can be divided into pure wheat whiskey and grain whiskey, as well as rye whiskey.
According to the storage time of whisky in oak barrels, it can be divided into different years, such as years to decades. All Scotch whiskies have a requirement that they need to be aged in oak barrels for not less than 3 years.
According to the degree of alcohol, whisky can be divided into 40-60 degrees and other alcoholic whisky.