Originally Posted by HarryMann
Also worth noting that carrying heaps of bottled alcohol on-board (some to be carried off as duty frees) is also 'madness' when so much effort has been put into saving weight in a/c design & manufacture. This not only is heavy itself, but requires space and extra structural weight to constrain and contain it.
Cask wine in a cardboard box to be served into a paper cup should be fine for economy class, considering how low the fares are anyway. This should save quite a bit of weight, reduce waste and be safer (cannot easily be used as a weapon unlike a glass bottle, and it tends to do people less harm if it flies around the cabin). Potentially more environmentally friendly than plastic bottles and cups too.