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SN Narwhal Clone

Method: All Grain
Style: Russian Imperial Stout
Boil Time: 90 min
Batch Size: 5.5 gallons (fermentor volume)
Pre Boil Size: 7.5 gallons
Post Boil Size: 5.3 gallons
Pre Boil Gravity: 1.075 (recipe based estimate)
Post Boil Gravity: 1.106 (recipe based estimate)
Efficiency: 57% (brew house)
Source: Chico Brewer
Calories: 18087 calories (Per 20qt)
Carbs: 1670.8 g (Per 20qt)

Created: Sunday December 30th 2018

House Imperial Stout

by ChicoBrewer

OG: 1.120 FG: 1.025 ABV: 12.5% IBU: 61

Original Gravity:

1.102

Final Gravity:

1.021

ABV (standard):

10.6%

IBU (tinseth):

53.4

SRM (morey):

50.0

Mash pH

5.0

Cost $

n/a

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Fermentables

Amount	Fermentable	PPG	°L	Bill %
23 lb	US - Pale 2-Row23 lb Pale 2-Row	37	1.8	84.4%
1 lb	German - Acidulated Malt1 lb Acidulated Malt	27	3.4	3.7%
1 lb	American - Chocolate1 lb Chocolate	29	350	3.7%
0.75 lb	American - Roasted Barley0.75 lb Roasted Barley	33	300	2.8%
0.50 lb	American - Caramel / Crystal 60L0.5 lb Caramel / Crystal 60L	34	60	1.8%
0.50 lb	Honey Malt0.5 lb Honey Malt	37	25	1.8%
0.50 lb	US - American - Midnight Wheat Malt0.5 lb American - Midnight Wheat Malt	33	550	1.8%
27.25 lbs / $ 0.00

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
1 oz	Challenger1 oz Challenger Hops	Pellet	5.5	Boil	60 min	15.21	33.3%
1 oz	Magnum1 oz Magnum Hops	Pellet	11.8	Boil	60 min	32.64	33.3%
1 oz	Challenger1 oz Challenger Hops	Pellet	5.5	Boil	10 min	5.52	33.3%
3 oz / $ 0.00

Show Summary View

Amount	Variety	IBU	Bill %
2 oz	Challenger (Pellet)	20.73	66.6%
1 oz	Magnum (Pellet)	32.64	33.3%
3 oz / $ 0.00

Mash Guidelines

Amount	Description	Type	Start Temp	Target Temp	Time
12.14 gal	Single Infusion	Infusion	--	155 °F	60 min
Starting Mash Thickness: 1.75 qt/lb

Other Ingredients

Amount	Name	Type	Use	Time
1.50 tsp	Calcium Chloride (dihydrate)	Water Agt	Mash	1 hr.
1 tsp	Epsom Salt	Water Agt	Mash	1 hr.
2.50 tsp	Gypsum	Water Agt	Mash	1 hr.
1 tsp	Table Salt	Water Agt	Mash	1 hr.

Yeast

Fermentis - Safale - American Ale Yeast US-05

Amount:	2 Each	Cost:
Attenuation (avg):	81%	Flocculation:	Medium
Optimum Temp:	54 - 77 °F	Starter:	Yes
Fermentation Temp:	68 °F	Pitch Rate:	1.0 (M cells / ml / ° P) 504 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

Method: co2 Amount: 5.99 psi Temp: 38 °F CO₂ Level: 2 Volumes

Target Water Profile

Balanced Profile II

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
150	10	80	150	160	220
Mash Chemistry and Brewing Water Calculator

Notes

This is an attempt at Sierra Nevada Narwhal. I'll bottle it and drink some fresh and oak/bourbon some for aging.

From the Sierra Nevada Web Site:

Alcohol Content 10.2% by volume
Beginning gravity 24.2° plato (1.102)
Ending Gravity 6.6° plato (1.026)
Bitterness Units 60

Last Updated and Sharing

1,125

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Brews

Public: Yup, Shared
Last Updated: 2020-10-27 02:30 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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