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Wimperial Stout

250 calories 27.4 g 12 oz
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Beer Stats
Method: All Grain
Style: Imperial Stout
Boil Time: 60 min
Batch Size: 6.5 gallons (fermentor volume)
Pre Boil Size: 7.3 gallons
Pre Boil Gravity: 1.067 (recipe based estimate)
Efficiency: 70% (brew house)
Source: Murdock
Calories: 250 calories (Per 12oz)
Carbs: 27.4 g (Per 12oz)
Created: Sunday November 5th 2017
1.075
1.021
7.1%
63.3
29.1
n/a
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
15.50 lb United Kingdom - Maris Otter Pale15.5 lb Maris Otter Pale 38 3.75 82.7%
1 lb United Kingdom - Carastan (30/37)1 lb Carastan (30/37) 35 34 5.3%
1 lb American - Caramel / Crystal 120L1 lb Caramel / Crystal 120L 33 120 5.3%
0.50 lb United Kingdom - Brown0.5 lb Brown 32 65 2.7%
0.50 lb American - Chocolate0.5 lb Chocolate 29 350 2.7%
0.25 lb American - Roasted Barley0.25 lb Roasted Barley 33 300 1.3%
18.75 lbs / $ 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
2 oz Chinook2 oz Chinook Hops Pellet 12 Boil 60 min 60.38 50%
2 oz Cascade2 oz Cascade Hops Pellet 6.8 Aroma 2 min 2.89 50%
4 oz / $ 0.00
 
Yeast
Imperial Yeast - A10 Darkness
Amount:
1 Each
Cost:
Attenuation (avg):
71%
Flocculation:
Medium
Optimum Temp:
62 - 72 °F
Starter:
No
Fermentation Temp:
64 °F
Pitch Rate:
-
$ 0.00 Yeast Pitch Rate and Starter Calculator
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
Grainfather Infusion -- 152 °F 80 min
Quick Water Requirements
Water Gallons  Quarts
Strike water volume at mash thickness of 1.75 qt/lb 8.2 32.8  
Mash volume with grains 9.7 38.8  
Grain absorption losses -2.34 -9.4  
Remaining sparge water volume (equipment estimates 2.54 g | 10.2 qt) 1.69 6.8  
Mash Lauter Tun losses -0.25 -1  
Pre boil volume (equipment estimates 8.15 g | 32.6 qt) 7.3 29.2  
Boil off losses -1.5 -6  
Hops absorption losses (first wort, boil, aroma) -0.15 -0.6  
Post boil Volume 6.5 26  
Going into fermentor 6.5 26  
Total: 9.89 39.6
Equipment Profile Used: System Default
 
Notes

11/4/17
Basically this was intended to be an Old Rasputin clone, but sadly I missed my OG so this is barely even an Imperial Stout!

This was too much grain/water for the GF and it nearly overflowed during the mash! So I drew some off and mashed about 1.5 gallons separately on the stove. Maybe this is related to why efficiency was so low. Wasn't able to keep a smooth running circulation........
Used ph stabilizer, irish moss, and yeast nutrient.
Yielded 6 gallons in the fermentor, with some leftover in the kettle too. This implies way too much water was used. Maybe need to revise the GF water calculations...
Fermented in storage unit at 64 degrees.

Update on Jan 10 2018: tasting great! Smooth and easy to drink. Very little hop or coffee notes.

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  • Last Updated: 2018-01-11 09:07 UTC