Wine lovers often find themselves wondering how long an opened bottle of wine stays good. While it’s unlikely that consuming old wine will cause illness, its flavor diminishes significantly over time. Oxygen, heat, light, yeast, and bacteria, which enter the bottle once opened, accelerate chemical reactions that spoil the wine, affecting its taste.

According to wine expert Dana Sacco, owner of The Empty Glass in Texas, the type of wine greatly influences its longevity once uncorked. Sparkling wines typically last one to two days, light whites and rosés can last four to five days, while richer whites and red wines should ideally be consumed within three to five days. Interestingly, fortified wines like port can remain enjoyable for one to three weeks after opening.

In certain instances, opening a wine bottle can enhance its taste. Aerating full-bodied reds, for instance, helps soften tannins and bring out complex aromas, enriching the overall drinking experience. For those wanting to keep their wine fresher longer, investing in a wine pump to reduce oxygen exposure is advisable.

Ultimately, it comes down to personal taste and storage methods when enjoying wine over the days following its opening.