Nirvana Brewery Traditional Bavarian Hefeweizen is the wheat beer in the East London brewery's low-alcohol range, brewed at the Leyton site. It is produced unfiltered, using a Hefeweizen yeast strain that gives rise to the banana, clove, and vanilla character associated with the Bavarian style. Within Nirvana's broad range, this is the dedicated wheat beer entry, following the traditional German format rather than the pale ales and lagers that make up much of the line-up.