Adaptation from several sources including Jamil and BrewFriend. First batch with BIAB and pH meter working together.
the colder you start out, the less the diacetyl that is produced
Let it go for 12 hrs at 40 degrees. creep up to 50 degrees by 48 hrs
Steve's thoughts: I don't entirely agree with his fermentation method
mostly because normally you would actually do what's called a diacetyl rest
because SOME "will" be produced, so what you do is raise the temp after ferm is mostly finished, to let the yeast eat those byproducts basically
so you could follow his schedule, let it sit at 50 for a week or two, then raise to 65 or even 70 for 2 days to finish of the diacetyl THEN down to lagering temps (close to freezing as you dare)
Pitched 22g rehydrated at 56F as temp was falling toward 48F. Already adjusted this recipe to better efficiency, reduced pilsner malt and increased Munich and Carapils. I would use this lower attenuating yeast next time.
Fermentables
86% - Bohemian Pilsner - DE
10
38
1
Mash
7% - Carapils - Dextrine Malt - US
0.8
33
1
Mash
3% - Munich - 60L - US
0.4
33
60
Mash
3% - Acidulated Malt - DE
0.4
27
3
Mash
Hops
Saaz
1.5
Pellet
FirstWort
90 min(s)
3.6
17.6
Saaz
2.2
Pellet
Boil
30 min(s)
3.6
18.5
Saaz
1
Pellet
Boil
10 min(s)
3.6
4.0
Saaz
1
Pellet
FlameOut
0 min(s)
3.6
0.0
Yeast
Wyeast Bohemian Lager 2124
71%
Other Stuff
Whirlfloc Tablet
1
each
Mash
Mash Steps
Saccharification Rest
Infusion
148
45 min
Saccharification Rest
Infusion
161
20 min
Mash-Out
Infusion
170
15 min
Special Instructions
1.Use 80% dH20, 20% mineral water for mash and sparge with 1.5g chalk
2.Target mash pH of 5.2-5.4
3.Cool and pitch at 45F, ferment at 50F for 12 days, raise to 58F for 2 days, secondary ferment in keg under pressure for 4 weeks at 2 C.
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