If you're a wine drinker, you've probably noticed that screw caps are no longer considered the closure just for cheap vino. Increasingly, bottles of very good wines are unscrewed, rather than uncorked ...

A: It is 100 per cent safe to store screw-capped bottles upright. The wadding under the aluminium cap – that little disc that sits inside the cap – is the seal and, unlike cork, doesn’t need to be wet ...