"Grafenwalder" is an Aldi brand. It is not bad, but there are better ones if you want to go for "Weissbier".
There are several good ones but i do not know which you have there. Some good ones (sorry for not mentioning every one, must be hundreds lol):
Schoeffershofer
Schneider
Erdinger
Weihenstefan
Alpirsbacher
Those "Weissbiere" are top-fermented beers made of wheat, and they are great in the summer. There are "Kristall" (filtered) and "Hefe" (unfiltered) wheat beers, and they now even come in a non-alcohol variety. In Germany the Kristall type is often served with a slice of lemon, and in Bavaria with some grains of rice to help keeping the foam down. There are also special "Weissbier" glasses of 1/2 litre content (appx. a pint) with a special form.
Regarding beer .. when i was there the only drinkable real beer in England was what they sold as "Lager", the english beers and ales were not what the rest of the world would call a beer. They have their merits, but it seems the roman invasion and cultural development did not reach that far ..
Remembering my time in England they had german wine called "Liebfraumilch" in the stores (and only this german "wine") which is a sheer atrocity - you do not find such stuff in Germany anymore since the 1950ies, and i was really astonished what passes as german wine there. Must be a propaganda thing to import such stuff lol.
When being in Coventry a friend of ours had made beer himself, he was astonished we managed to empty it within the first hours
sans visiting a pub. Indeed this self-made stuff was much better
Greetings,
Catfish