Tested our newly built Brew Kettle today by brewing up a batch of German Pilsener. Everything went surprisingly well, but had some small problems also. We will have to lower the inner kettle, as there was a lot of dead space with the current setup (which meant slower cooling with the immersion chiller as it wasn’t fully immersed). Also, the pump got jammed once during the mash. I brewed outdoors, which might not have been the smartest thing to do during the summer, as the sweet wort aromas attracted tons of insects. I managed to find a dead wasp in the kettle after I drained it into the fermenter, so hopefully the batch hasn’t got contaminated. I pitched two packets of W-34/70, and threw the fermenter into the fermentation fridge set at 10C. I got around 55-60% efficiency, so the prediction was quite correct. I ended up with a little less volume, but a little higher gravity, than expected. The new mill was working great, and will tighten the gap for the next crush, as I think the crush could definitely be finer. Hopefully this turns out nice! I’m hoping for a Prima Pils-like pilsner, with lots of floral hoppiness. Below are some pictures from the brewday and the recipe.
Recipe: German Pilsener Style: German Pilsner TYPE: All Grain Recipe Specifications -------------------------- Boil Size: 33.46 l Post Boil Volume: 27.04 l Batch Size (fermenter): 22.00 l Bottling Volume: 18.00 l Estimated OG: 1.055 SG Estimated Color: 11.3 EBC Estimated IBU: 43.4 IBUs Brewhouse Efficiency: 56.00 % Est Mash Efficiency: 66.2 % Boil Time: 90 Minutes Ingredients: ------------ Amt Name Type # %/IBU 6.500 kg Pilsner (4.5 EBC) Grain 1 92.9 % 0.250 kg Aromatic Malt (51.2 EBC) Grain 2 3.6 % 0.250 kg Wheat (6.0 EBC) Grain 3 3.6 % 16.00 g Magnum [12.70 %] - Boil 60.0 min Hop 4 21.1 IBUs 33.00 g Saaz [2.70 %] - Boil 30.0 min Hop 5 7.1 IBUs 20.00 g Hallertauer Mittelfrueh [4.00 %] - Boil Hop 6 6.4 IBUs 33.00 g Saaz [2.70 %] - Boil 15.0 min Hop 7 4.6 IBUs 20.00 g Hallertauer Mittelfrueh [4.00 %] - Boil Hop 8 4.1 IBUs 33.00 g Saaz [2.70 %] - Boil 0.0 min Hop 9 0.0 IBUs 20.00 g Hallertauer Mittelfrueh [4.00 %] - Boil Hop 10 0.0 IBUs 2.0 pkg Saflager Lager (DCL/Fermentis #W-34/70) Yeast 11 -