The storage time for wine in the refrigerator depends on whether the wine is already opened or unopened. Here are some guidelines:
Unopened wine: If the wine bottle is unopened, it can be safely stored in the refrigerator for several months to a year. However, it's essential to note that storing wine for extended periods in the fridge is not ideal for long-term aging. For wines meant for aging and improving over time, a wine cellar or a cool, dark place with a consistent temperature is more suitable.
Opened wine: Once a bottle of wine is opened, it's best to consume it within a few days, as exposure to air starts to degrade the wine's quality. To slow down the oxidation process, you can reseal the bottle tightly with a wine stopper and keep it in the refrigerator. Red wine may last a bit longer (up to 3-5 days) than white wine (1-3 days) after opening, but it's generally best to finish it relatively soon.
It's important to mention that refrigeration is not ideal for all types of wines. Some wines, especially red wines, can lose their complexity and flavors if served too cold. Therefore, if you plan to enjoy a bottle of wine, it's best to take it out of the refrigerator 20-30 minutes before serving (for reds) or 45-60 minutes before serving (for whites) to let it reach the optimal serving temperature.
If you have leftover wine that you won't consume within a few days, you can also consider freezing it in an ice cube tray and use the frozen wine cubes later for cooking or making wine-based cocktails.