The moment a bottle of wine is opened, it’s immediately exposed to air (aeration). This initiates the process of wine oxidation. Once wine has oxidized, there’s no going back. The longer wine is left open and unsealed, the quicker it loses its original taste and aroma. So, how can we keep wine fresh for longer? Oxygen is the #1 leading cause of spoiled wine. Therefore, it is necessary to limit its contact with air as much as possible. The trickiest thing about preserving wine, is keeping oxygen out until we revisit the bottle for a glass. We only find commercial wine-savers to have failed doing their job once it’s too late. Wine, meet drain.