Imperial Stout Beer Recipe | BIAB Imperial Stout by Duke Lazer | Brewer's Friend
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Imperial Stout

300 calories 31.1 g 12 oz
Beer Stats
Method: BIAB
Style: Imperial Stout
Boil Time: 30 min
Batch Size: 1 gallons (fermentor volume)
Pre Boil Size: 1.4 gallons
Post Boil Size: 1 gallons
Pre Boil Gravity: 1.065 (recipe based estimate)
Post Boil Gravity: 1.090 (recipe based estimate)
Efficiency: 60% (brew house)
Hop Utilization: 99%
Calories: 300 calories (Per 12oz)
Carbs: 31.1 g (Per 12oz)
Created: Tuesday September 2nd 2025
1.090
1.023
8.9%
61.1
50.0
5.2
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
43 oz Simpsons - Maris Otter pale43 oz Maris Otter pale 38 2.4 64.2%
10 oz Flaked Barley10 oz Flaked Barley 32 2.2 14.9%
5.50 oz German - Carafa II5.5 oz Carafa II 32 425 8.2%
5 oz Brown Malt5 oz Brown Malt 34 90.36 7.5%
3.50 oz Simpsons - Amber Malt3.5 oz Amber Malt 31.8 20.8 5.2%
67 oz / 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
9.10 g Magnum9.1 g Magnum Hops Pellet 15 Boil 30 min 61.07 100%
9.10 g / 0.00
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
1.6 gal Infusion 161 °F 154 °F 30 min
 
Other Ingredients
Amount Name Cost Type Use Time
2.66 g Chalk Water Agt Mash 1 hr.
0.82 g Calcium Chloride (dihydrate) Water Agt Mash 1 hr.
0.62 g Epsom Salt Water Agt Mash 1 hr.
0.66 g Gypsum Water Agt Mash 1 hr.
0.66 g Baking Soda Water Agt Mash 1 hr.
2.20 ml Lactic acid Water Agt Mash 10 min.
 
Yeast
Fermentis - Safale - English Ale Yeast S-04
Amount:
2 Each
Cost:
Attenuation (avg):
75%
Flocculation:
High
Optimum Temp:
54 - 77 °F
Starter:
Yes
Fermentation Temp:
68 °F
Pitch Rate:
0.35 (M cells / ml / ° P) 29 B cells required
0.00 Yeast Pitch Rate and Starter Calculator
Priming
CO2 Level: 1.65 Volumes
 
Target Water Profile
RO
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
150 10 30 65 100 346.1
Water is Hoppy 40 SRM
Mash Chemistry and Brewing Water Calculator
"Imperial Stout" Imperial Stout beer recipe by Duke Lazer. BIAB, ABV 8.87%, IBU 61.07, SRM 50, Fermentables: (Maris Otter pale, Flaked Barley, Carafa II, Brown Malt, Amber Malt) Hops: (Magnum) Other: (Chalk, Calcium Chloride (dihydrate), Epsom Salt, Gypsum, Baking Soda, Lactic acid)
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  • Public: Yup, Shared
  • Last Updated: 2025-10-06 01:12 UTC
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