a drink must contain water otherwise you're not drinking but eating or taking substances.
Not true. I've got a bottle of IPA that's 99.953% pure. Bought it at Fry's.
Buy.com, among other places, sells it, too:
http://www.buy.com/prod/mg-chemicals...219567307.html
And it is possible to produce 100% pure, but rarely seen in consumer sales....typically reserved for scientific circles for specimen preservation.
McDonald's shakes?
This is probably as close as you'll get.
the title of the thread should be:
are there any "SAFE" drinks that don't contain water?
btw, milk is water based, but with complex ingredients, making it more unique, but not completely without water.
I had some 100% EtOH for a while. It smells like candy. Never drank it though. Oh, and we had pure deionized water too. Apparently that tastes like nothing. Coulda made some kickass vodka. Didn't though.
OP: You can get close enough if all you want is a non water-based drink, but none of them are very good.