Signs Your Opened Wine Has Gone Bad: A Guide to Freshness Chris Lehoux, January 12, 2026 If you have an opened bottle of wine and are wondering if it’s still good to drink, it’s important to understand that while it may not make you sick, its taste can deteriorate significantly over time. Wine exposed to air for an extended period loses its bright flavors and aromas, sometimes even developing a sour or vinegary taste. Experts recommend refrigerating any open wine, as keeping it at lower temperatures helps slow down the chemical reactions that can spoil its quality. According to Dana Sacco, owner of The Empty Glass in Tomball, Texas, once a wine is opened, it becomes susceptible to oxygen, heat, light, yeast, and bacteria, which all contribute to its aging process. Different types of wine have varying shelf lives after being opened. Sparkling wines can last about one to two days, while lighter white wines and rosés can remain drinkable for four to five days. Rich white and red wines are best consumed within three to five days. Port wines are more durable, lasting one to three weeks. Sacco also notes that aeration—allowing wine to breathe—can sometimes enhance its flavor by softening tannins and releasing aromatic compounds. For those looking to preserve the quality of their open wine for longer, she suggests using wine pumps to reduce the amount of oxygen in the bottle. For wine enthusiasts, understanding these nuances about opened wine can help ensure a pleasant tasting experience. About the Author: Chris Lehoux Meet Chris Lehoux, an experienced wine connoisseur and dedicated blogger with a deep passion for all things wine-related. With years of expertise in the industry, Chris shares insightful wine reviews, valuable wine tasting tips, expert pairing advice, and captivating tales of vineyard visits. Join Chris on a journey through the world of wine, where every sip is an adventure waiting to be savored! Wine