how long does red wine last once opened

Once opened, red wine generally lasts between 3 to 6 days if properly stored—re-corked and kept in a cool, dark place or refrigerated. Full-bodied reds with more tannins, like Cabernet Sauvignon, tend to last longer, closer to 5 or 6 days, while lighter red wines may last around 3 days. Oxidation is the main factor in wine degradation once opened, affecting taste, aroma, and color. Refrigeration slows down oxidation, helping preserve the wine's quality for a few more days. Sparkling wines and fortified wines have different preservation timelines, with fortified wines lasting significantly longer due to higher alcohol content.