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Black Iron

364 calories 39.9 g 12 oz
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Beer Stats
Method: All Grain
Style: Imperial Stout
Boil Time: 60 min
Batch Size: 4 gallons (fermentor volume)
Pre Boil Size: 7.1 gallons
Post Boil Size: 6 gallons
Pre Boil Gravity: 1.091 (recipe based estimate)
Post Boil Gravity: 1.108 (recipe based estimate)
Efficiency: 75% (brew house)
Calories: 364 calories (Per 12oz)
Carbs: 39.9 g (Per 12oz)
Created: Thursday August 20th 2020
1.108
1.031
10.1%
70.7
50.0
5.6
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
13.25 lb Simpsons - Finest Pale Ale Maris Otter13.25 lb Finest Pale Ale Maris Otter 37 2.6 80.3%
0.75 lb American - Victory0.75 lb Victory 34 28 4.5%
0.50 lb New Zealand - Roast Barley0.5 lb Roast Barley 32.7 736.04 3%
0.50 lb Caramel / Crystal 60L0.5 lb Caramel / Crystal 60L 34 60 3%
0.50 lb Briess - Chocolate0.5 lb Chocolate 25 350 3%
0.50 lb Weyermann - Carafa Special Type II0.5 lb Carafa Special Type II 29.9 425 3%
0.50 lb Rice Hulls0.5 lb Rice Hulls 0 0 3%
16.50 lbs / $ 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
1.50 oz Magnum1.5 oz Magnum Hops Leaf/Whole 15 Boil 60 min 67.02 60%
0.50 oz Fuggles0.5 oz Fuggles Hops Pellet 4.5 Boil 15 min 3.66 20%
0.50 oz Fuggles0.5 oz Fuggles Hops Pellet 4.5 Boil 0 min 20%
2.50 oz / $ 0.00
 
Other Ingredients
Amount Name Cost Type Use Time
1 each Whirlfloc Water Agt Boil 15 min.
1 tsp Yeast Nutrient Other Mash 10 min.
 
Yeast
Imperial Yeast - A10 Darkness
Amount:
2 Each
Cost:
Attenuation (avg):
71%
Flocculation:
Medium
Optimum Temp:
62 - 72 °F
Starter:
No
Fermentation Temp:
-
Pitch Rate:
0.35 (M cells / ml / ° P) 135 B cells required
$ 0.00 Yeast Pitch Rate and Starter Calculator
Priming
Method: dextrose       Amount: 2.7 oz       Temp: 68 °F       CO2 Level: 2 Volumes
 
Target Water Profile
Balanced Profile
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
9 0 6 5 25 82.7
Mash Chemistry and Brewing Water Calculator
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
3 gal Infusion -- -- --
4 gal Sparge 172 °F -- --
Starting Mash Thickness: 1.5 qt/lb
Quick Water Requirements
Water Gallons  Quarts
Strike water volume at mash thickness of 1.5 qt/lb 6.19 24.8  
Mash volume with grains 7.51 30  
Grain absorption losses -2.06 -8.3  
Remaining sparge water volume (equipment estimates 1.72 g | 6.9 qt) 3.23 12.9  
Mash Lauter Tun losses -0.25 -1  
Pre boil volume (equipment estimates 5.59 g | 22.4 qt) 7.1 28.4  
Boil off losses -1.5 -6  
Hops absorption losses (first wort, boil, aroma) -0.09 -0.4  
Post boil Volume (equipment estimates 4 g | 16 qt) 6 24  
WARNING: Exceeded batch size - reduce boil size    
Going into fermentor (equipment estimates 6 g | 24 qt) 4 16  
Total: 9.41 37.7
Equipment Profile Used: System Default
"Black Iron" Imperial Stout beer recipe by rockstrom1@comcast.net. All Grain, ABV 10.07%, IBU 70.67, SRM 50, Fermentables: (Finest Pale Ale Maris Otter, Victory, Roast Barley, Caramel / Crystal 60L, Chocolate, Carafa Special Type II, Rice Hulls) Hops: (Magnum, Fuggles) Other: (Whirlfloc, Yeast Nutrient)
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  • Last Updated: 2026-09-13 19:44 UTC