This was the last bar we visited during our city break. We started with a light pilsner and then we saw these goblets being served of green or red beer. We asked the friendly jurgen klopp lookalike barman what they were and he said they were a berlin speciality so we ordered one and they tasted fab -a bit like a kopparberg fruit cider only in beer form. The barman couldn\t do enough for us and was happy to recommend beers to us -with no obligation as we\d said we\d only be having the two. This is a proper German alehouse with a great atmosphere -food looked pretty decent too!