Here’s how it works: If you happen to already own a Coravin, which costs from $200 to $350, to use it on screw-capped wine bottles, you will need to buy a set of six stoppers for $30.

"The screw cap keeps it [the bottle] sealed and does not allow oxygen to enter the bottle," Foster says. And that, he explains, ensures that the wine remains crisp and well-preserved.

On the topic of screw-cap wines, his answer was clear: No, they are not inferior to corked wines, and in some ways might actually keep your wine from spoiling.

Screw-cap wines generally benefit from more aeration, not less, than cork-sealed wines. Exposure to oxygen imparts two key benefits. Mainly, it helps soften the texture and enhance fruity flavours.

I sample a lot of wine each year and can attest to the reality of the occasional "corked" screw-cap bottle, as can many of my wine-writing colleagues.

Screw cap wines have reached record numbers recently and readers continue to ask me for advice on how to store screw cap bottles. Aug. 10, 2012. Aug. 10, 2012. 2 min read. Save.

Screw-caps are a great seal, ... If you look at an unopened bottle with its screw-cap intact, you’ll notice a deep indentation that encircles the collar, immediately below the perforation.

Where possible, the screw cap version was placed against the cork - so from 2003, when the adoption of screw cap for whites was first introduced. We didn't taste every vintage, ...

The fact that we got the screw cap initiative going in Clare, the whole wine world looked at what we were doing with real interest, and saw an opportunity," he said. "[The shift] ...