https://beerandbrewing.com/recipe-goldfinger-smoke-two-lagers/
DIRECTIONS
Mill the grains and mash at 144°F (62°C) for 45 minutes; raise to 154°F (68°C) and rest 15 minutes; then raise to 162°F (72°F), rest 15 minutes, and mash out. 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, then allow 20 minutes to settle. Chill to 50°F (10°C), aerate the wort, and pitch the yeast. Ferment at 50°F (10°C) for 10 days to clear diacetyl. Crash to 32°F (0°C), package, and carbonate to 2.5–2.6 volumes of CO2.
BREWER’S NOTES
Mash: We aim for a mash pH of 5.3; adjust the acidulated malt as needed. (We also aim for a wort pH of 5.1.) If you can’t do a step mash, a single infusion at 149°F (65°C) for 60 minutes is fine.