He may need to only know about one part, but he knows all of it. Sorry, kiddo.

Garth'zel shakes his head slightly. "You can have some if you want it."

He'll have something else. Possibly stew, even if it's a little early in the day for it. He looks meditatively at the list of food available this early in the day to decide what he actually wants. Regardless, he knows he's not getting something alcoholic to drink; it's far too early in the day for it.