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Russian Imperial Stout

Name: Russian Imperial Stout
Prep time: 75 min
Cook time: 90 min
Total time: 165 min
Yield: 42 liters
Cuisine: Homebrewing
Ingredients: 5.5 kg Maris Otter Pale; 1.25 kg DRC; 1 kg Dark Chocolate Malt; 1 kg Rolled Oats; 1 kg Roasted Barley; 0.8 kg Rice Hulls; 2 kg Cane Sugar; 7 kg Finest Pale Ale Golden Promise; 1 kg Eclipse Roasted Wheat; 1 kg Carafa Special Type III; 1 kg Munich Type I; 1 kg Vienna Malt; 100 g Magnum Hops; 100 g East Kent Goldings Hops

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Method: All Grain
Style: Imperial Stout
Boil Time: 90 min
Batch Size: 42 liters (fermentor volume)
Pre Boil Size: 53.8 liters
Post Boil Size: 48 liters
Pre Boil Gravity: 1.067 (recipe based estimate)
Post Boil Gravity: 1.102 (recipe based estimate)
Efficiency: 60% (brew house)
Calories: 326 calories (Per 330ml)
Carbs: 32.4 g (Per 330ml)

Created: Monday August 10th 2026

Original Gravity:

1.105

Final Gravity:

1.025

ABV (standard):

10.4%

IBU (tinseth):

86.9

SRM (morey):

40.0

Mash pH

5.4

Cost $

n/a

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Fermentables

Amount	Fermentable	PPG	°L	Bill %
5.50 kg	United Kingdom - Maris Otter Pale5.5 kg Maris Otter Pale	38	3.75	23.4%
1.25 kg	Simpsons - DRC1.25 kg DRC	34.7	115	5.3%
1 kg	Gladfield - Dark Chocolate Malt1 kg Dark Chocolate Malt	32.7	488	4.2%
1 kg	New Zealand - Rolled Oats1 kg Rolled Oats	12.4	1.4	4.2%
1 kg	Simpsons - Roasted Barley1 kg Roasted Barley	28.52	600	4.2%
0.80 kg	Rice Hulls0.8 kg Rice Hulls	0	0	3.4%
2 kg	Cane Sugar2 kg Cane Sugar - (late boil kettle addition)	46	0	8.5%
7 kg	Simpsons - Finest Pale Ale Golden Promise7 kg Finest Pale Ale Golden Promise	37	2.4	29.7%
1 kg	Gladfield - Eclipse Roasted Wheat1 kg Eclipse Roasted Wheat	34	525.6	4.2%
1 kg	Weyermann - Carafa Special Type III1 kg Carafa Special Type III	29.9	525	4.2%
1 kg	Weyermann - Munich Type I1 kg Munich Type I	38	6	4.2%
1 kg	Weyermann - Vienna Malt1 kg Vienna Malt	37	3.5	4.2%
23.55 kg / $ 0.00

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
100 g	Magnum100 g Magnum Hops	Pellet	15	Boil	60 min	71.08	50%
100 g	East Kent Goldings100 g East Kent Goldings Hops	Pellet	5	Boil	10 min	8.59	50%
200 g / $ 0.00

Show Summary View

Mash Guidelines

Amount	Type	Start Temp	Target Temp	Time
75.425 L	Infusion	--	67 °C	60 min
3.395 L	Sparge	--	76 °C	15 min
Starting Mash Thickness: 3.5 L/kg Starting Grain Temp: 18 °C

Other Ingredients

Amount	Name	Type	Use	Time
7.50 g	Gypsum	Water Agt	Mash	1 hr.
6 g	Calcium Chloride (anhydrous)	Water Agt	Mash	1 hr.
7.50 g	Chalk	Water Agt	Mash	15 min.
8.60 g	Bioglucanase	Water Agt	Mash	1 hr.
0.40 g	Gypsum	Water Agt	Boil	1 hr.
0.30 g	Calcium Chloride (anhydrous)	Water Agt	Boil	1 hr.
1 g	Antifoam	Water Agt	Boil	1 hr.
3 g	Whirlfoc	Water Agt	Boil	15 min.
5 g	Yeast Nutrient	Other	Boil	15 min.

Yeast

Fermentis - Safale - American Ale Yeast US-05

Amount:	1 Each	Cost:
Attenuation (custom):	75%	Flocculation:	Medium
Optimum Temp:	12 - 25 °C	Starter:	No
Fermentation Temp:	18 °C	Pitch Rate:	0.35 (M cells / ml / ° P) 365 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

CO₂ Level: 2.75 Volumes

Target Water Profile

Reverse Osmosis

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
0	0	0	0	0	0
Mash Chemistry and Brewing Water Calculator

Last Updated and Sharing

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Brews

Public: Yup, Shared
Last Updated: 2026-08-27 00:09 UTC

Recipe costs can be adjusted by changing the batch size. They won't be saved but will give you an idea of costs if your final yield was different.

Cost for

Gallons

Cost by

Final Yield

	Cost $	Cost %
Fermentables	$
Steeping Grains (Extract Only)	$
Hops	$
Yeast	$
Other	$
Cost Per Barrel	$ 0.00
Cost Per Pint	$ 0.00
Total Cost	$ 0.00

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Amount	Variety	IBU	Bill %
100 g	Magnum (Pellet) 100 g Magnum (Pellet) Hops	71.08	50%
100 g	East Kent Goldings (Pellet) 100 g East Kent Goldings (Pellet) Hops	8.59	50%
200 g / $ 0.00