Over in Brussels recently, I picked up a bottle of Tea Beer in one of the many beer shops.
Tea Beer, made by Lindemans, is not it seems Belgian (the label on the back of the bottle is written entirely in Chinese) but it does come complete with a label that suggests that it is a beer made out of, or with tea. For 2 Euros I got a rather small measure (250 ml) that when poured looks rather like a glass of brown tea with a gently bubbling head.
Being the hay fever season my sense of smell is poor now, so I had better concentrate on the beers taste. Tea Beer is best compared to some of the Belgian fruit beers, although it is rather less sickly. If served to a man who was blindfolded they would be unlikely to identify tea as one of the ingredients (if indeed it is, my Chinese is rather weak) and I get the impression the drink would be unpleasant unless drunk ice cold. This is not a beer to leave in your bag for a few hours.
All in all, worth trying, but if you have only limited space in your travel bag, you may be better off sticking to Duval or Hoegaarden.