At present, there is no official definition of old wine and there is no uniform standard in the circle. It should refer to the era of wine, not the era of brands.

Simply put, old wine, as its name implies, refers to all aged wines, including white wine, red wine, yellow wine, wine, liqueur, whisky, brandy, gin, vodka and so on. Because the shelf life of beer is too short, the concept of old wine is usually the best drinking period of more than 5 years, so beer generally has no concept of old wine.

However, old wine does not mean good taste. This good taste refers to the degree to which people usually accept taste. For example, the smell of yellow rice wine buried underground for 20 years is really hard to make people interested in drinking a second sip. However, Maotai-flavor liquor for more than 30 years is difficult for ordinary people to swallow.