The wine cask  or ‘bag in a box’ was invented by Tom Angove of Angove’s in Renmark, South Australia. The plastic bag inside the cardboard carton held 1 gallon, or 4.5 litres. His wine cask design was flawed as you needed to cut the corner off the bag, pour out the wine, then re-seal the bag with a peg. It was fiddly and potentially messy.