How long does opened wine last?

How many times have you tipped a half-finished bottle of wine down the sink, convinced it had gone off? You're not alone: it's one of the most common wine myths out there, and it means we're often throwing away perfectly good wine, and money along with it. So, how long does opened wine actually last?

Michelle Lawlor from the Nude Wine Company (delivering nationwide!) joins guest host Tom Dunne to discuss.