after the expiration of the 1-year shelf life, red wine can't be drunk if it smells, and it can still be drunk if it is kept in good conditions and its body is not over-oxidized.

the method to judge whether red wine is drinkable is actually very simple: after opening the bottle, if there is obvious vinegar, soy sauce or mildew smell, there is no fruit aroma, the color is dull and there is a lot of precipitation, which indicates that it has lost its drinking value. If the wine has been opened and not drunk at one time, the remaining wine must be sealed and placed in the refrigerator, preferably within one week. Because the oxygen entering the bottle after opening will quickly oxidize the wine body, and the microorganisms in the air will also cause the remaining wine to deteriorate, it is not drinkable.

the best drinking time of wine.

for most low-priced wines on the market, the best drinking period is generally within 1~2 years. This kind of wine is often characterized by simple aroma composition, mainly fresh berry aroma and floral fragrance. After simple oak barrel aging (or not), the alcohol content, tannin strength and acidity are all in the middle.

this kind of wine tastes good and balanced, but at the same time it lacks characteristics and has almost no preservation value, so consumers should drink it as soon as possible. For a small number of medium-priced wines, the best drinking period may be three to five years later and within 1 years. This kind of wine usually has high alcohol content, acidity or tannin strength, and the fruit aroma is very rich, which can stand the test of time and has certain preservation value.

what are the above references? People's Network-Can wine be drunk after expiration?