English: A picture of a bladder pack and a bladder pack in a cardboard box (thus called a bag-in-box). Bladder packs are very environmental as the wine/fruit juice, ... will not deteriorate when opened (so that it will not need to be thrown away when it has been left open too long) and the bag allows a contents of 5-10l (so that far less packaging, labeling, ...) is required. Finally, the material it is made from is very light, which reduces pollution caused by transport (glass weighs allot and thus invokes extra pollution at this point).