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Penumbra - Imperial Oatmeal Coffee Stout

Method: All Grain
Style: Russian Imperial Stout
Boil Time: 60 min
Batch Size: 5.00003 gallons (fermentor volume)
Pre Boil Size: 6.52004 gallons
Efficiency: 72% (brew house)
Calories: 291 calories (Per 12oz)
Carbs: 26.2 g (Per 12oz)

Created: Friday December 2nd 2011

Original Gravity:

1.088

Final Gravity:

1.017

ABV (standard):

9.4%

IBU (tinseth):

62.9

SRM (morey):

42.6

Mash pH

n/a

Cost $

n/a

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Fermentables

Amount	Fermentable	PPG	°L	Bill %
11 lb	Pilsner (2 Row) Bel11 lb Pilsner (2 Row) Bel	0	2	63.8%
1.50 lb	Oats, Flaked1.5 lb Oats, Flaked	37	1	8.7%
1 lb	Caramunich Malt0.999999 lb Caramunich Malt	0	56	5.8%
1 lb	Roasted Barley0.999999 lb Roasted Barley	25	300	5.8%
0.50 lb	Caramel/Crystal Malt - 60L0.5 lb Caramel/Crystal Malt - 60L	0	60	2.9%
0.50 lb	Chocolate Malt0.5 lb Chocolate Malt	34	450	2.9%
0.25 lb	Black (Patent) Malt0.25 lb Black (Patent) Malt	32	500	1.4%
1.50 lb	Simpson's Golden Naked Oats1.5 lb Simpson's Golden Naked Oats	37	10	8.7%
17.25 lbs / $ 0.00

Hops

Amount	Variety	Type	AA	Use	Time	Bill %
1.50 oz	fuggles1.5 oz fuggles Hops	Pellet	4.5	Boil	60 min	25%
1.50 oz	Willamette1.5 oz Willamette Hops	Pellet	5.5	Boil	60 min	25%
1 oz	Goldings, East Kent0.999998 oz Goldings, East Kent Hops	Pellet	5	Boil	30 min	16.7%
0.50 oz	fuggles0.499998 oz fuggles Hops	Pellet	4.5	Boil	30 min	8.3%
1 oz	Goldings, East Kent0.999998 oz Goldings, East Kent Hops	Pellet	5	Boil	15 min	16.7%
0.50 oz	Willamette0.499998 oz Willamette Hops	Pellet	5.5	Boil	15 min	8.3%
6 oz / $ 0.00

Show Summary View

Amount	Variety	IBU	Bill %
2 oz	fuggles (Pellet)	0	33.3%
2 oz	Willamette (Pellet)	0	33.3%
2 oz	Goldings, East Kent (Pellet)	0	33.4%
6 oz / $ 0.00

Mash Guidelines

Amount	Description	Type	Start Temp	Target Temp	Time
21.6426 gal	Mash grains at 152° F until converted.	Infusion	--	152 °F	60 min

Other Ingredients

Amount	Name	Cost	Type	Use	Time
1 lb	Kopi Luwak Coffee - Cold Brewed		Other	Secondary	1 hr.

Yeast

Wyeast - American Ale 1056

Amount:	1 Each	Cost:
Attenuation (avg):	75%	Flocculation:	Med-Low
Optimum Temp:	60 - 72 °F	Starter:	No

$ 0.00 Yeast Pitch Rate and Starter Calculator

Notes

I brewed this batch with Kopi Luwak (civet) coffee, but any robust coffee will work. Cold brew it to reduce acidity and add it late in the secondary to retain aroma and avoid any astringency.

Last Updated and Sharing

1,879

Views

Brews

Public: Yup, Shared
Last Updated: 2011-12-02 23:39 UTC

System Default

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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