I had a hankering for a stout and managed to graciously score a free out of date 1098 yeast (cheers Cheaky Peak), so I had a second attempt at an oatmeal stout.
Recipe: Confederate Stout TYPE: All Grain
Style: Oatmeal Stout
---RECIPE SPECIFICATIONS-----------------------------------------------
SRM: 36.7 EBC SRM RANGE: 43.3-78.8 EBC
IBU: 35.8 IBUs Tinseth IBU RANGE: 25.0-40.0 IBUs
OG: 1.052 SG OG RANGE: 1.048-1.065 SG
FG: 1.010 SG FG RANGE: 1.010-1.018 SG
BU:GU: 0.685 Calories: 427.1 kcal/l Est ABV: 5.5 %
EE%: 90.00 % Batch: 23.00 l Boil: 35.46 l BT: 75 Mins
---WATER CHEMISTRY ADDITIONS----------------
Total Grain Weight: 4.455 kg Total Hops: 67.00 g oz.
---MASH/STEEP PROCESS------MASH PH:5.40 ------
>>>>>>>>>>-ADD WATER CHEMICALS BEFORE GRAINS!!<<<<<<<
Amt Name Type # %/IBU
3.800 kg Pale Malt (2 Row) US (3.9 EBC) Grain 1 85.3 %
0.230 kg Oats, Flaked (2.0 EBC) Grain 2 5.2 %
0.180 kg Crystal, Dark - Barret Burston (250.0 EB Grain 4 4.0 %
0.180 kg Chocolate Malt , Pale - Bairds (550.0 EB Grain 3 4.0 %
0.065 kg Roast Barley (1150.0 EBC) Grain 5 1.5 %
Name Description Step Temperat Step Time
Protein Rest Add 15.36 l of water at 55.3 C 52.0 C 10 min
Saccharification Heat to 65.0 C over 15 min 65.0 C 60 min
'Head' rest Heat to 72.0 C over 10 min 72.0 C 40 min
Mash Out Heat to 78.0 C over 10 min 78.0 C 10 min
---SPARGE PROCESS---
Fly sparge with 26.56 l water at 75.6 C
---BOIL PROCESS-----------------------------
Est Pre_Boil Gravity: 1.037 SG Est OG: 1.052 SG
Amt Name Type # %/IBU
20.00 g First Gold [7.50 %] - Boil 60.0 min Hop 6 17.1 IBUs
15.00 g Target [11.00 %] - Boil 60.0 min Hop 7 18.8 IBUs
17.00 g Goldings, East Kent [5.00 %] - Boil 0.0 Hop 8 0.0 IBUs
15.00 g Target [11.00 %] - Boil 0.0 min Hop 9 0.0 IBUs
---NOTES------------------------------------
Used up leftover hops, hence odd combo. Was Challenger.
91% efficiency.
Used UT Quick Oats and toasted them on the stove. Some burning but very little.
Yeast was 1187, but due to free 1098 that was stepped up and used instead (8 months old)
Somehow utterly smashed the efficiency and hit 91%. I didn't have any rolled oats except for Uncle Toby's quick oats so hopefully these will be 'in character'. I gave them a light roast on a frying pan to add a bit of depth to it all.
Here's how the oats looked before applying heat:
And after, house smelling of popcorn:
On my brew system at the new house:
Really looking forward to this one.