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Imperial Pastry Stout base

Method: All Grain
Style: Imperial Stout
Boil Time: 90 min
Batch Size: 3.75 gallons (fermentor volume)
Pre Boil Size: 5.6 gallons
Post Boil Size: 4.5 gallons
Pre Boil Gravity: 1.071 (recipe based estimate)
Post Boil Gravity: 1.096 (recipe based estimate)
Efficiency: 70% (brew house)
Source: InspectorJon
Calories: 317 calories (Per 12oz)
Carbs: 27.4 g (Per 12oz)

Created: Friday April 5th 2019

Imperial Stout

by eschmehl

OG: 1.091 FG: 1.015 ABV: 10.0% IBU: 65

Original Gravity:

1.096

Final Gravity:

1.017

ABV (standard):

10.3%

IBU (tinseth):

69.9

SRM (morey):

44.8

Mash pH

5.5

Cost $

n/a

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Fermentables

Amount	Fermentable	PPG	°L	Bill %
8 lb	Rahr - Standard 2-Row8 lb Standard 2-Row	36.8	1.8	55.2%
1.25 lb	Briess - Barley, Flaked1.25 lb Barley, Flaked	32.2	1.4	8.6%
1.25 lb	German - Munich Light1.25 lb Munich Light	37	6	8.6%
1 lb	Flaked Oats1 lb Flaked Oats	33	2.2	6.9%
0.75 lb	American - Chocolate0.75 lb Chocolate	29	350	5.2%
0.50 lb	American - Caramel / Crystal 120L0.5 lb Caramel / Crystal 120L	33	120	3.4%
0.50 lb	American - Caramel / Crystal 90L0.5 lb Caramel / Crystal 90L	33	90	3.4%
0.25 lb	German - Carafa II0.25 lb Carafa II	32	425	1.7%
1 lb	Maple Syrup1 lb Maple Syrup - (late boil kettle addition)	30	35	6.9%
14.50 lbs / $ 0.00

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
23 g	CTZ23 g CTZ Hops	Pellet	15	Boil	60 min	50.84	46.9%
16 g	Azacca16 g Azacca Hops	Pellet	13	Boil	15 min	15.21	32.7%
10 g	Azacca10 g Azacca Hops	Pellet	13	Boil	5 min	3.82	20.4%
49 g / $ 0.00

Show Summary View

Amount	Variety	IBU	Bill %
23 g	CTZ (Pellet) 23 g CTZ (Pellet) Hops	50.84	46.9%
26 g	Azacca (Pellet) 26 g Azacca (Pellet) Hops	19.03	53.1%
49 g / $ 0.00

Mash Guidelines

Amount	Description	Type	Start Temp	Target Temp	Time
6.5 gal		Infusion	156 °F	148 °F	60 min
Starting Grain Temp: 70 °F

Other Ingredients

Amount	Name	Type	Use	Time
4 oz	cocoa powder	Flavor	Boil	10 min.
3 g	Calcium Chloride (dihydrate)	Water Agt	Mash	0 min.
2.10 g	Gypsum	Water Agt	Mash	0 min.
2 g	Baking Soda	Water Agt	Mash	0 min.

Yeast

- Lone Pint

Amount:	200 Milliliters	Cost:
Attenuation (custom):	78%	Flocculation:	Low
Optimum Temp:	65 - 78 °F	Starter:	No
Fermentation Temp:	65 °F	Pitch Rate:	1.25 (M cells / ml / ° P) 406 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

CO₂ Level: 2.65 Volumes

Target Water Profile

London (Porter, dark ales)

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
100	5	35	60	50	265
Added 2.1 g CC, 2.1g Gyp, and .6g Baking Soda to Placerville (very soft) water
Mash Chemistry and Brewing Water Calculator

Notes

Version #1 turned out great, split batch. Half got lactose, orange peal and chocolate the other half got Xocoveza spice mix. Ingredient 3 was Candi syrup, home made syrup #5 using 1.25 lb table sugar per https://www.homebrewtalk.com/forum/threads/20-lb-of-sugar-and-a-jar-of-yeast-nutrient.114837/ Version #1 had no oats.

Cold steep chocolate, crystal 120 and Carafa II 3 qt. room temp water for 24 hours yielding 10 cups or 1.040 wort. This went in 90 minute boil.

Used a combination of 75% Lone Pint house yeast and 25% A38 Juice. Fermented 1.090 to 1.018 in about 48 hours. 1.014 at 21 days. Pitched about 400 billion cells into 4 gallons of wort. Fermented in mid to upper 60s F. Highest temp measured was 71. Performed second aeration at 12 hours. 5 minutes with aquarium pump and aquarium air stone.

Options: Add lactose at a rate of 1 lb/5 gallons wort and flavorings Chocolate, Coffee, Vanilla, Orange Peel, Cinnamon, Chili etc. after primary fermentation.

Current version (#2) subs 1.25 lb Light Munich malt for d-180 syrup and adds 1 lb flaked oats and 1 lb maple syrup after fermentation was about done. Mashed all the grain together. Fermented with 100% Lone Pint house yeast. Got 80% attenuation.

Last Updated and Sharing

547

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Public: Yup, Shared
Last Updated: 2020-06-20 21:00 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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