Originally Posted by Timfid
A few wineries are now putting good-quality wines in boxes, though most box wine is plonk. But if you can find one of the few good boxed wines, the equivalent cost per bottle can be amazingly cheap. In my experience the boxed wines last for weeks or months after opening with no loss of quality.
There are those who think that boxes are the wave of the future: notions
about the necessity of cork having been dispelled, glass bottles are the next
to go!
Here's an interesting French site dedicated to box wines - I'd have had
my doubts, but we visited the shop earlier this year and found some of the
wines quite acceptable - and we didn't even get into the good stuff
(Ch. Guiney, for example, said to be a bargain at E50 for 3L).