Starting with a traditional German malt bill consisting of 50% Pilsen malt and 50% wheat malt, we then kettle sour the wort, meaning we innoculate it with lactobacillus bacteria after mashing and wort run-off but before racking to the fermenter. For Tropical Berliner, we used an obscene amount of papaya, guava, mango, and pineapple purée, lending a huge, ripe, juicy tropical fruit character that is a perfect complement to the dry finish and acidity of the base beer.