BIAB. mash: 156f (strike water: 164-168) for 60 minutes. pre-melt marshmallow flush before adding to the boil at 5 minutes to flame out to avoid clumping and scorching. Aerate your wort. pitch Windsor yeast at 66-68f first then add Nottingham yeast on day 3-4 during high krausen. day 6-7 do a diacetyl reset for 3 days before hitting your cold crash.