Dionysus likewise tries the tea, and -- yep, it's tea. That drink he doesn't like. She has put some sugar in it, which he appreciates, and which does make it better than it would be otherwise, but well.

On his second sip it turns into wine once it leaves the cup. "That's lovely dear, thank you again." Note that he doesn't refer to the drink specifically as lovely, he's referring to the gesture, so he's technically not lying.