You might have run into the issue of opening a new bottle of red wine, plugging the old cork back in, and coming back a few days to the wine lacking flavor or even tasting sour.
Over the last twenty years, we have worked hard to find the most optimal way of preserving wine. Previously, techniques varied from adding higher spirits to the wine to dumping honey into the bottle. In more recent times, people have figured out that removing oxygen from the wine bottle can help increase it’s shelf life. This gave rise to Wineemotion creating the best wine preservation systems on the market.
When a wine bottle is opened, oxygen from the air comes in and quickly begins to spoil the wine through the oxidation process. Because of this, even when corked back up, deterioration of the wine begins within two days.