How long can I keep a bottle of red wine open before it spoils, two days? One week? One month? Wino Wendy
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Dear Wino Wendy
Red wine can be kept for several days after opening if air is removed from the bottle before re-corking. Oxygen in the air starts a process that initially softens the flavors and opens up the aromas of the wine, so if you can, try to finish the bottle before the oxidation turns the bottle bad. If that isn't an option, there are ways to re-seal wine. One is a "pump" where you simply suck the air out of the bottle and re-cork it.
Another method involves spraying inert gas into the wine bottle, which helps disperse any oxygen. It is recommended to refrigerate all wines after they have been corked, even red, but remember to take it out of the fridge at least a half an hour before serving. As a rule of thumb, I would not wait more than three days after opening. Otherwise, enjoy the vinegar!