The Big OS - Beer Recipe - Brewer's Friend

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The Big OS

307 calories 30.7 g 12 oz
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Beer Stats
Method: All Grain
Style: Russian Imperial Stout
Boil Time: 90 min
Batch Size: 6.5 gallons (ending kettle volume)
Pre Boil Size: 8.5 gallons
Pre Boil Gravity: 1.071 (recipe based estimate)
Efficiency: 68% (ending kettle)
Calories: 307 calories (Per 12oz)
Carbs: 30.7 g (Per 12oz)
Created: Thursday June 25th 2015
1.092
1.022
10.1%
58.0
38.2
n/a
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
19 lb American - Pale 2-Row19 lb Pale 2-Row 37 1.8 77.6%
2 lb Flaked Oats2 lb Flaked Oats 33 2.2 8.2%
1 lb American - Roasted Barley1 lb Roasted Barley 33 300 4.1%
1 lb United Kingdom - Carastan (30/37)1 lb Carastan (30/37) 35 34 4.1%
0.75 lb American - Caramel / Crystal 120L0.75 lb Caramel / Crystal 120L 33 120 3.1%
0.75 lb American - Chocolate0.75 lb Chocolate 29 350 3.1%
24.50 lbs / $ 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
2 oz Northern Brewer2 oz Northern Brewer Hops Pellet 7.8 Boil 90 min 40.52 50%
1 oz East Kent Goldings1 oz East Kent Goldings Hops Pellet 5.7 Boil 30 min 10.64 25%
1 oz East Kent Goldings1 oz East Kent Goldings Hops Pellet 5.7 Boil 15 min 6.87 25%
4 oz / $ 0.00
 
Yeast
White Labs - Dry English Ale Yeast WLP007
Amount:
1 Each
Cost:
Attenuation (custom):
75%
Flocculation:
Med-High
Optimum Temp:
65 - 70 °F
Starter:
Yes
Fermentation Temp:
68 °F
Pitch Rate:
0.75 (M cells / ml / ° P) 406 B cells required
$ 0.00 Yeast Pitch Rate and Starter Calculator
 
Target Water Profile
London (Porter, dark ales)
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
100 5 35 60 50 265
Mash Chemistry and Brewing Water Calculator
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
47 qt -- -- 152 °F 120 min
Starting Mash Thickness: 1.5 qt/lb
Quick Water Requirements
Water Gallons  Quarts
Strike water volume at mash thickness of 1.5 qt/lb 9.19 36.8  
Mash volume with grains 11.15 44.6  
Grain absorption losses -3.06 -12.3  
Remaining sparge water volume 2.63 10.5  
Mash Lauter Tun losses -0.25 -1  
Pre boil volume (equipment estimates 8.9 g | 35.6 qt) 8.5 34  
Boil off losses -2.25 -9  
Hops absorption losses (first wort, boil, aroma) -0.15 -0.6  
Post boil volume (equipment estimates 6.1 g | 24.4 qt) 6.5 26  
Estimated amount in fermentor 6.5 26  
Total: 11.81 47.3
Equipment Profile Used: System Default
"The Big OS" Russian Imperial Stout beer recipe by Brewer #48950. All Grain, ABV 10.12%, IBU 58.02, SRM 38.17, Fermentables: (Pale 2-Row, Flaked Oats, Roasted Barley, Carastan (30/37), Caramel / Crystal 120L, Chocolate) Hops: (Northern Brewer, East Kent Goldings)
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  • Last Updated: 2015-10-16 11:52 UTC