How long to keep a bottle of wine open?

There are lots of variables; the wine type, method of production, age and so on. There are all those considerations and exceptions but for 95% of the wine that people drink every day, the answer is pretty simple.

Use the 3 day rule:

Re-close and refrigerate the bottle for up to 3 days. With red wines, remember pull the bottle out from the fridge at least 1 hour before you want to use it so it will warm up to a temperature of around 17-18°C. With white wines or rosés, depending upon the room temperature and time of year, give the wine 10-15 minutes or so to get to about 8-9°C.

If you keep a wine for more than 3 days, you will be serving a wine that has lost most of the personality and characteristics that are prized.

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