This beer style is of German origin (historically brewed in and around Berlin). I incorporated German ingredients where I could such as the malt, yeast, and hops. I used all German malts (pilsner, malted wheat, and acidulated malt). I used acidulated malt to bring the pH down in the mash without having to use acid to stay true to the Reinheitsgebot. I chose to use the noble hop Hallertau. The yeast is a German ale yeast (Fermentis K-97).
I was originally planning to use Lactobacillus delbruekii because it only makes lactic acid. However, when it was added into the recipe, it raised the final gravity. I decided to use the heterofermentative species brevis to keep my stats in line with the BJCP standards. (delbruekii had a final gravity of 5.2 plato whereas brevis had a final gravity of 1.6 plato).