I think the problem is that real cider apples only grew in certain areas - theres a clump running from Somerset to Normandy, and a bit in Northern Spain
I did like the comment in the Guardian "Thats a lot of gnats to milk"
And has anyone tried drinking 4 litres of wine in a day?  According to my alcocalculator, if drinking 500ml per hour, you're ready for a fight after 1 litre, confused at 3 litres, paralytic at 4 litres, but close to death at 5 litres.