20.C.1. Imperial Stout #1 Beer Recipe | All Grain Imperial Stout | Brewer's Friend
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20.C.1. Imperial Stout #1

351 calories 30.4 g 12 oz
Beer Stats
Method: All Grain
Style: Imperial Stout
Boil Time: 120 min
Batch Size: 5.5 gallons (fermentor volume)
Pre Boil Size: 8.21 gallons
Post Boil Size: 5.77 gallons
Pre Boil Gravity: 1.071 (recipe based estimate)
Post Boil Gravity: 1.106 (recipe based estimate)
Efficiency: 72% (brew house)
Source: WAWooldridge
Calories: 351 calories (Per 12oz)
Carbs: 30.4 g (Per 12oz)
Created: Wednesday August 30th 2017
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Blackshirts Stout

by devsop

OG: 1.115 FG: 1.025 ABV: 11.9% IBU: 64

1.106
1.019
11.4%
76.9
35.5
5.4
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
20 lb United Kingdom - Golden Promise20 lb Golden Promise 37 3 85.1%
4 oz United Kingdom - Roasted Barley4 oz Roasted Barley - (late boil kettle addition) 29 550 1.1%
8 oz United Kingdom - Chocolate8 oz Chocolate - (late boil kettle addition) 34 425 2.1%
4 oz United Kingdom - Black Patent4 oz Black Patent - (late boil kettle addition) 27 525 1.1%
1 lb Simpsons - Munich Malt1 lb Munich Malt 36.8 8 4.3%
1 lb Flaked Barley1 lb Flaked Barley - (late boil kettle addition) 32 2.2 4.3%
0.50 lb Brown Sugar0.5 lb Brown Sugar - (late boil kettle addition) 45 15 2.1%
23.50 lbs / 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
4 oz East Kent Goldings4 oz East Kent Goldings Hops Pellet 5 Boil 60 min 56.98 61.5%
1 oz Hop Union - UK Fuggle1 oz UK Fuggle Hops Pellet 4.5 Boil 30 min 9.85 15.4%
1 oz Goldings1 oz Goldings Hops Pellet 4.5 Boil 15 min 6.36 15.4%
0.50 oz Citra0.5 oz Citra Hops Pellet 11 Whirlpool 0 min 3.74 7.7%
6.50 oz / 0.00
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
35.25 qt Single Infusion Infusion 164.7 °F 153 °F 60 min
Mash out Temperature 153 °F 170 °F 20 min
Vorlauf -- -- 15 min
10.6 qt Batch Sparge -- 170 °F --
Starting Mash Thickness: 1.5 qt/lb
Starting Grain Temp: 65 °F
 
Other Ingredients
Amount Name Cost Type Use Time
1 tsp Irish Moss Fining Boil 15 min.
14.32 ml Phosphoric acid Water Agt Sparge 1 hr.
17.79 g Chalk Water Agt Mash 1 hr.
4 g Calcium Chloride (anhydrous) Water Agt Mash 1 hr.
4 g Epsom Salt Water Agt Mash 1 hr.
3.42 g Salt Water Agt Mash 1 hr.
199.52 ml Phosphoric acid Water Agt Mash 1 hr.
 
Yeast
Fermentis - Safale - American Ale Yeast US-05
Amount:
1 Each
Cost:
Attenuation (avg):
81%
Flocculation:
Medium
Optimum Temp:
54 - 77 °F
Starter:
Yes
Fermentation Temp:
60 °F
Pitch Rate:
1.25 (M cells / ml / ° P) 652 B cells required
0.00 Yeast Pitch Rate and Starter Calculator
Priming
CO2 Level: 2.5 Volumes
 
Target Water Profile
Balanced Profile II
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
147 20 50 125 75 250
Rice Hulls:
Add 1lb for every 5lbs malt to help with heat distribution.

Roasted Barley:
Add after mash-out, during vorlauf.

De-Bittered Black Malt:
Add after mash-out, during vorlauf.

Chocolate Malt:
Add after mash-out, during vorlauf.

Condition at least 4 weeks.
Store in a dark, cool place and allow to age. Improvement with 6 months aging.

For an Imperial Stout, you'll want a water profile that supports the beer's intense flavors and enhances the dark, roasted character. Here’s a typical profile to start with:

Calcium (Ca): 100-150 ppm
It provides good yeast health and helps enhance the malt backbone.

Magnesium (Mg): 10-30 ppm
It is necessary for yeast health but should be kept moderate to avoid bitterness.

Sulfate (SO₄²⁻): 50-100 ppm
It helps accentuate hop bitterness but should be kept lower than chloride to avoid overshadowing malt character.

Chloride (Cl): 100-200 ppm
It boosts mouthfeel and helps round out the malt flavors, ideal for a full-bodied stout.

Sodium (Na): 30-100 ppm
It adds to mouthfeel and sweetness; however, keep it under control, as too much sodium can result in off-flavors.

Bicarbonate (HCO₃⁻): 200-300 ppm
Dark beers like stouts benefit from higher bicarbonate, which helps balance the acidity of roasted malts.

Suggested Water Profile:

Calcium: 120 ppm
Magnesium: 20 ppm
Sulfate: 70 ppm
Chloride: 150 ppm
Sodium: 50 ppm
Bicarbonate: 250 ppm

This profile will enhance the richness and complexity of an Imperial Stout.
Mash Chemistry and Brewing Water Calculator
"20.C.1. Imperial Stout #1" Imperial Stout beer recipe by WAWooldridge. All Grain, ABV 11.39%, IBU 76.94, SRM 35.52, Fermentables: (Golden Promise, Roasted Barley, Chocolate, Black Patent, Munich Malt, Flaked Barley, Brown Sugar) Hops: (East Kent Goldings, UK Fuggle, Goldings, Citra) Other: (Irish Moss, Phosphoric acid, Chalk, Calcium Chloride (anhydrous), Epsom Salt, Salt)
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  • Last Updated: 2024-11-14 22:04 UTC
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