Red wine can be sealed and stored in a decanter for about 3 days. After all, when red wine is poured into the decanter, it begins to come into contact with the air. Even if the lid is closed, it is useless, just like stuffing the wine back after opening the bottle. Red wine enters its optimal tasting stage after waking up and should be consumed as soon as possible. If left for too long after sobering up, the liquor will oxidize excessively and turn sour.