A wine stopper and pump may be used for longer storage. The stopper seals the bottle after the air has been pumped out. An open bottle may be stored in the refrigerator for about three days. Another method is preservation gas, which is sprayed into the wine bottle before replacing the cork. The gas preserves wine by forcing all the air from the bottle.
Light is also a consideration when storing wine.
Even though a wine is bottled in dark glass, this does not mean that it is safe from light damage. Wine bottles should always be stored away from direct sunlight, regardless of how they are bottled. If wine is exposed to light for an extended period, the chemical composition can be altered and the taste ruined. When storing wine bottles, avoid storing them vertically. The best way is horizontally or at a 45-degree angle, so that the wine has contact with the cork.