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Chocolatey Imperial (all grain)

Method: BIAB
Style: Imperial Stout
Boil Time: 60 min
Batch Size: 3 gallons (fermentor volume)
Pre Boil Size: 3.5 gallons
Post Boil Size: 3 gallons
Pre Boil Gravity: 1.084 (recipe based estimate)
Post Boil Gravity: 1.102 (recipe based estimate)
Efficiency: 80% (brew house)
Hop Utilization: 97%
Calories: 338 calories (Per 12oz)
Carbs: 29.8 g (Per 12oz)

Created: Friday November 1st 2024

Original Gravity:

1.102

Final Gravity:

1.019

ABV (alternate):

12.1%

IBU (tinseth):

61.1

SRM (daniels):

40.0

Mash pH

5.5

Cost $

16.31

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Fermentables

Amount	Fermentable	Cost	PPG	°L	Bill %
6.75 lb	Briess - Brewers Malt 2-Row6.75 lb Brewers Malt 2-Row	$ 1.50 / lb $ 10.13	37	1.8	63.9%
1.50 lb	Briess - Bonlander Munich Malt 10L1.5 lb Bonlander Munich Malt 10L	$ 1.65 / lb $ 2.48	36	10	14.2%
7 oz	Briess - Caramel Malt - 60L7 oz Caramel Malt - 60L	$ 1.65 / lb $ 0.72	35.4	60	4.1%
7 oz	Briess - Chocolate7 oz Chocolate	$ 1.80 / lb $ 0.79	25	350	4.1%
7 oz	Briess - Roasted Barley7 oz Roasted Barley	$ 1.80 / lb $ 0.79	33.1	300	4.1%
4 oz	Briess - Black Malt4 oz Black Malt		27	500	2.4%
4 oz	Flaked Barley4 oz Flaked Barley	$ 1.65 / lb $ 0.41	32	2.2	2.4%
4 oz	Thomas Fawcett - Pale Chocolate Malt4 oz Pale Chocolate Malt		32.2	230	2.4%
4 oz	Brown Sugar4 oz Brown Sugar - (late boil kettle addition)		45	15	2.4%
169 oz / $ 15.31

Hops

Amount	Variety	Cost	Type	AA	Use	Time	IBU	Bill %
0.50 oz	Magnum0.5 oz Magnum Hops	$ 2.00 / oz $ 1.00	Pellet	16	Boil	60 min	36.22	33.3%
1 oz	East Kent Goldings1 oz East Kent Goldings Hops		Pellet	5.5	Boil	60 min	24.9	66.7%
1.50 oz / $ 1.00

Show Summary View

Amount	Variety	Cost	IBU	Bill %
0.50 oz	Magnum (Pellet)	$ 2.00 / oz $ 1.00	36.22	33.3%
1 oz	East Kent Goldings (Pellet)		24.9	66.7%
1.50 oz / $ 1.00

Other Ingredients

Amount	Name	Type	Use
4 g	Baking Soda	Water Agt	Mash
5 g	Calcium Chloride (dihydrate)	Water Agt	Mash
3 g	Gypsum	Water Agt	Mash

Yeast

Fermentis - Safale - American Ale Yeast US-05

Amount:	1 Each	Cost:
Attenuation (avg):	81%	Flocculation:	Medium
Optimum Temp:	54 - 77 °F	Starter:	No
Fermentation Temp:	-	Pitch Rate:	0.35 (M cells / ml / ° P) 96 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

CO₂ Level: 2.25 Volumes

Target Water Profile

London (Porter, dark ales)

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
100	5	35	60	50	265
Mash Chemistry and Brewing Water Calculator

Notes

I do a full preboil volume, no-rinse mash, 150F for 60 minutes, and squeeze the hell out of my grain bag.

I have to do this as a partial mash due to small kettle size, only differences are: use 2.75 lbs of 2-row PLUS 3.0 lbs of Briess Golden Lite DME, one MORE gram of Baking Soda, and I can use a little bit less hops due to adding that DME at the end of the boil.

This recipe is never going to finish at 1.019, but does finish right around 1.024 (with us-05), or 1.028 (with s-04) pretty reliably.

At bottling, I like to add 8 ounces of a nice bourbon (for this 2.7 gallons to be bottled) to the bottling bucket, along with priming sugar to reach 2.0 vol CO2, and rehydrated EC-1118 yeast.

Needs 3 months to start tasting really nice!

Last Updated and Sharing

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Brews

Public: Yup, Shared
Last Updated: 2025-05-16 02:05 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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