https://beerandbrewing.com/recipe-incendiary-schwarzbier/
YEAST
BSI Augustiner, White Labs WLP860 Munich Helles Lager, Wyeast 2352 Munich Lager II, Imperial L17 Harvest, or Omega OYL-114 Bayern Lager
DIRECTIONS
Mill the grains and mash at 150°F (66°C) for 60 minutes. Recirculate until the runnings are clear, then run off into the kettle. Sparge and top up as necessary to get about 6 gallons (23 liters) of wort, depending on your evaporation rate. Boil for 90 minutes, adding hops according to the schedule. After the boil, do a whirlpool step: Stir or recirculate to create a vortex, add the whirlpool hops, and allow 30 minutes to steep. Chill to about 48°F (9°C), aerate the wort, and pitch the yeast. Ferment at 54°F (12°C) until your gravity has dropped to about 1.020, then raise to 59°F (15°C) for a diacetyl rest. When fermentation is complete and the gravity has stabilized, crash to 32°F (0°C) and lager 3–4 weeks. Package and carbonate to about 2.6 volumes of CO2.
BREWER’S NOTES
Water: We adjusted our local water with gypsum and chalk in the mash and calcium chloride in the mash and boil. Our target water profile: calcium 52.3 ppm, magnesium 1.5 ppm, sodium 10.9 ppm, sulfate 45.6 ppm, chloride 56.3 ppm, bicarbonate 57.8 ppm.
Mash: On our 15-barrel system, mash-in takes 10–15 minutes, and we rest for 10 minutes before we begin recirculation (vorlauf) for 30 minutes.