Did the ancients drink out of ceramic jugs?

[M. Demetrius]

Wouldn't a wineskin (waterskin) be simply the size of the animal from which it was made? Kids and goats are commonly used today, so surely they were then, too. But you're probably right about pouring into a cup. After all, it's difficult to hold a ten liter bottle overhead to get a drink.

The Spanish "bota" that's sold all over, is probably a modern simulation of some kind of animal bladder or stomach.

http://spanishfood.about.com/od/drinks/a/botas.htm