How long does black box wine last after opening?

6 weeks Click to see full answer. Hereof, how long is boxed wine good for after opening? The Benefits of Boxed Wines Extended Freshness – Once a conventional glass bottle is opened, the wine within will only remain fresh for a couple of days. The airtight polyethylene bags used in box wines keep oxygen sealed out, thus allowing the wine within to stay fresh for up to six weeks after opening.Similarly, is it safe to drink expired boxed wine? Boxed wine actually does have an expiration date, unlike bottled wine. This is because boxed wine is more porous than bottled wine. If you consume the boxed wine within 6-8 weeks of opening it, however, it will still be fresh – an upside to consuming bottled wine, which will only stay fresh for one week after opening. Also, does boxed wine need to be refrigerated after opening? Yes, it can. Once opened, the box should stay fresh for roughly six weeks. As with all wine, bag-in-box products last longer in the fridge (whether it’s a white or a red) simply because cool temperatures slow down the chemical reactions associated with spoilage.How can you tell if boxed wine has gone bad? 8 Simple Signs that Your Wine is Bad The colour browner than you would expect. The wine has bubbles when it’s not mean to. Smells like wet dog or wet cardboard. Smells like band-aids or a barn yard. Smells like nail polish remover or vinegar. Smells ‘mousey’. Smells like burnt rubber or cooked cabbage. The wine has no aroma.