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Imperial HazelBourb

373 calories 35.3 g 500 ml
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Beer Stats
Method: All Grain
Style: Russian Imperial Stout
Boil Time: 60 min
Batch Size: 21 liters (fermentor volume)
Pre Boil Size: 27 liters
Post Boil Size: 24 liters
Pre Boil Gravity: 1.058 (recipe based estimate)
Post Boil Gravity: 1.080 (recipe based estimate)
Efficiency: 80% (brew house)
Source: Bobby GANEV
Calories: 373 calories (Per 500ml)
Carbs: 35.3 g (Per 500ml)
Created: Monday March 9th 2026
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Imperial Cocoa Stout

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OG: 1.091 FG: 1.027 ABV: 8.4% IBU: 40

1.080
1.017
8.3%
36.0
39.8
n/a
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
4 kg Crisp Malting - Finest Maris Otter4 kg Finest Maris Otter 36.8 2.4 58.8%
0.65 kg Flaked Oats0.65 kg Flaked Oats 33 2.2 9.6%
0.40 kg Weyermann - Chocolate Rye0.4 kg Chocolate Rye 29.9 240 5.9%
0.35 kg Simpsons - Brown Malt0.35 kg Brown Malt 32 187.93 5.1%
0.25 kg Weyermann - Carafa Special Type II0.25 kg Carafa Special Type II 29.9 425 3.7%
0.15 kg Simpsons - Crystal Dark0.15 kg Crystal Dark 33 120 2.2%
1 kg Muntons - Light Dry Malt Extract (DME)1 kg Light Dry Malt Extract (DME) - (late boil kettle addition) 42 4.3 14.7%
6.80 kg / 0.00 €
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
50 g East Kent Goldings50 g East Kent Goldings Hops Pellet 5.8 First Wort 0 min 35.96 100%
50 g / 0.00 €
 
Other Ingredients
Amount Name Cost Type Use Time
1 each Protafloc Fining Boil 12 min.
2 g Yeast Nutrient Other Boil 5 min.
 
Yeast
Mangrove Jack - New World Strong Ale M42
Amount:
20 Grams
Cost:
Attenuation (avg):
79.5%
Flocculation:
High
Optimum Temp:
16 - 22 °C
Starter:
No
Fermentation Temp:
-
Pitch Rate:
0.35 (M cells / ml / ° P) 142 B cells required
0.00 € Yeast Pitch Rate and Starter Calculator
Priming
CO2 Level: 1.65 Volumes
 
Target Water Profile
Balanced Profile
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
90 8 40 130 50 150
Mash Chemistry and Brewing Water Calculator
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
25 L Strike 72 °C 63 °C 35 min
-- 68 °C 35 min
-- 72 °C 15 min
-- 77 °C 3 min
6 L Fly Sparge -- 77 °C --
Starting Mash Thickness: 4.31 L/kg
Starting Grain Temp: 18 °C
Quick Water Requirements
Water Liters
Strike water volume at mash thickness of 4.3 L/kg 25
Mash volume with grains 28.8
Grain absorption losses -5.8
Remaining sparge water volume (equipment estimates 8 L) 8.7
Mash Lauter Tun losses -0.9
Pre boil volume (equipment estimates 26.3 L) 27
Volume increase from sugar/extract (late additions) 0.6
Boil off losses -5.7
Hops absorption losses (first wort, boil, aroma) -0.3
Post boil Volume (equipment estimates 21 L) 24
WARNING: Exceeded batch size - reduce boil size  
Going into fermentor (equipment estimates 24 L) 21
Total: 33.7  
Equipment Profile Used: System Default
 
Notes

Add last 15 mins of mash 72°C:
Chocolate malt
Brown malt
Carafa

Add in secondary my secret Hazelnut/Bourbon tincture...

OG: 1.080

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  • Public: Yup, Shared
  • Last Updated: 2026-05-08 18:01 UTC