How long will open red wine stay good for?

Once opened, a bottle of red wine will typically stay good for 3-5 days. However, it can last longer or shorter depending on conditions. To extend the shelf life, store the wine in a cool, dark place (ideally between 55 and 65°F) with a consistent humidity level. Keep the bottle tightly sealed to prevent air from entering and spoiling the wine. For maximum quality, it's best to consume the wine within a few days of opening.