I had two liquid containers of 1 and 0.5 liters and thought I'd have to empty both of them before security. The guy there told me there were no restrictions on liquids and I could just bring them.
I've never experienced this in the EU before. As a matter of fact, I recall restrictions on liquids while flying from Munich just a few weeks ago.
Does Frankfurt have some special kind of machine that sniffs for explosives in the liquids or something? How do they get to allow the liquids, unlike other EU airports?