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Imperial Stout

Method: All Grain
Style: American Stout
Boil Time: 60 min
Batch Size: 22 liters (fermentor volume)
Pre Boil Size: 32 liters
Pre Boil Gravity: 13.1 °P (recipe based estimate)
Efficiency: 50% (brew house)
Rating:

3.00 (1 Review)

Calories: 236 calories (Per 330ml)
Carbs: 21.2 g (Per 330ml)

Created: Tuesday January 20th 2015

Original Gravity:

18.7 °P

Final Gravity:

3.7 °P

ABV (standard):

8.2%

IBU (tinseth):

87.0

SRM (morey):

44.1

Mash pH

n/a

Cost $

n/a

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Fermentables

Amount	Fermentable	PPG	°L	Bill %
4.96 kg	United Kingdom - Golden Promise4.96 kg Golden Promise	37	3	45.2%
4.50 kg	German - Pale Ale4.5 kg Pale Ale	39	2.3	41%
0.30 kg	United Kingdom - Crystal 45L0.3 kg Crystal 45L	34	45	2.7%
0.27 kg	Flaked Rye0.27 kg Flaked Rye	36	2.8	2.5%
0.27 kg	United Kingdom - Oat Malt0.27 kg Oat Malt	28	2	2.5%
0.23 kg	United Kingdom - Pale Chocolate0.225 kg Pale Chocolate	33	207	2.1%
0.23 kg	United Kingdom - Roasted Barley0.225 kg Roasted Barley	29	550	2.1%
0.23 kg	Viking Black Malt0.225 kg Viking Black Malt	25	700	2.1%
10.98 kg / $ 0.00

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
40 g	Chinook40 g Chinook Hops	Pellet	13	Boil	60 min	58.41	47.1%
15 g	Chinook15 g Chinook Hops	Pellet	13	Boil	30 min	16.83	17.6%
15 g	Centennial15 g Centennial Hops	Pellet	10	Boil	15 min	8.36	17.6%
15 g	Centennial15 g Centennial Hops	Pellet	10	Boil	5 min	3.36	17.6%
85 g / $ 0.00

Show Summary View

Amount	Variety	IBU	Bill %
55 g	Chinook (Pellet) 55 g Chinook (Pellet) Hops	75.24	64.7%
30 g	Centennial (Pellet) 30 g Centennial (Pellet) Hops	11.72	35.2%
85 g / $ 0.00

Yeast

Mangrove Jack - US West Coast Yeast

Amount:	1 Each	Cost:
Attenuation (custom):	81%	Flocculation:	High
Optimum Temp:	15 - 23 °C	Starter:	Yes
Fermentation Temp:	18 °C	Pitch Rate:	1.25 (M cells / ml / ° P) 513 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Last Updated and Sharing

1,812

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Brews

Public: Yup, Shared
Last Updated: 2015-04-24 10:42 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

Discussion about this recipe:

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Tyler D • 03/17/2015 at 11:31am

3 of 5

Although I realize this is an American style stout, I am not sure about how Centennial works with this beer. Seems to clash with the dark malts. Next iteration will call for a hop revision. Gravity has dropped down to 3.4'P which is a bit lower than expected. Even so, there is a fair amount of body and sweetness left. I feel like the M44 yeast from Mangrove Jack has a nice mouthfeel. Same for other beers I've used it for. Not quitte enough chocolatey goodness in this recipe. Perhaps it was the pale chocolate malt vs. chocolate malt. Next iteration will see more chocolate malt and perhaps bit more crystal malt.

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