Polar Bear Killer Imperial Stout - Beer Recipe - Brewer's Friend

Brewer's Friend

Print

Polar Bear Killer Imperial Stout

325 calories 30 g 12 oz
brewer logo
Beer Stats
Method: All Grain
Style: Imperial Stout
Boil Time: 60 min
Batch Size: 18 liters (fermentor volume)
Pre Boil Size: 26.74 liters
Pre Boil Gravity: 1.066 (recipe based estimate)
Post Boil Gravity: 1.098 (recipe based estimate)
Efficiency: 70% (brew house)
Calories: 325 calories (Per 12oz)
Carbs: 30 g (Per 12oz)
Created: Monday October 17th 2022
Similar Recipes

Chocolate Chili Imperial Stout

by darrylsnow

OG: 1.091 FG: 1.018 ABV: 9.6% IBU: 57

Imperial Stout

by Ivan Barenboim

OG: 1.089 FG: 1.022 ABV: 9.5% IBU: 56

1.098
1.020
10.2%
49.0
50.0
5.5
38.10
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
5 kg Crisp Malting - Extra Pale Maris Otter5 kg Extra Pale Maris Otter $ 3.00 / kg
$ 15.00 		37.5 2 62.3%
1 kg Crisp Malting - Roasted Barley1 kg Roasted Barley $ 4.00 / kg
$ 4.00 		31.28 520 12.5%
400 g Viking - Caramel 100400 g Caramel 100 $ 4.00 / kg
$ 1.60 		35 50.8 5%
400 g Castle Malting - Château Arome400 g Château Arome $ 4.00 / kg
$ 1.60 		34.4 39.8 5%
400 g Brown Sugar400 g Brown Sugar $ 2.00 / kg
$ 0.80 		45 15 5%
60 g Crisp Malting - Chocolate Malt60 g Chocolate Malt $ 3.00 / kg
$ 0.18 		32.66 450 0.7%
640 g Castle Malting - Château Biscuit640 g Château Biscuit $ 4.00 / kg
$ 2.56 		35 17 8%
120 g Crisp Malting - Crystal 60L120 g Crystal 60L $ 3.00 / kg
$ 0.36 		33.1 60 1.5%
8,020 g / $ 26.10
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
15 g Charles Faram - Northdown15 g Northdown Hops Pellet 7.5 Boil 15 min 6.84 27.3%
20 g Charles Faram - Fuggles20 g Fuggles Hops $ 0.10 / g
$ 2.00 		Pellet 5.5 Boil 30 min 10.35 36.4%
20 g Charles Faram - Chinook20 g Chinook Hops Pellet 13 Boil 60 min 31.84 36.4%
55 g / $ 2.00
 
Other Ingredients
Amount Name Cost Type Use Time
4 g Calcium Chloride (dihydrate) Water Agt Mash 1 hr.
2 g Baking Soda Water Agt Mash 1 min.
100 g Rasin Flavor Boil 30 min.
200 g Apricot Dried Flavor Boil 30 min.
100 g Sweet Cherries Flavor Boil 30 min.
25 g Whole Cloves Spice Boil 30 min.
1 each Vanilla Bean Flavor Boil 30 min.
30 g Cinnamon Spice Boil 30 min.
 
Yeast
Wyeast - London Ale 1028
Amount:
1 Each
Cost:
$ 10.00 / each
$ 10.00
Attenuation (avg):
75%
Flocculation:
Med-Low
Optimum Temp:
16 - 22 °C
Starter:
No
Fermentation Temp:
-
Pitch Rate:
0.35 (M cells / ml / ° P) 147 B cells required
$ 10.00 Yeast Pitch Rate and Starter Calculator
Priming
Method: BrownSugar       Amount: 63.8 g       Temp: 20 °C       CO2 Level: 1.65 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
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
19.5 L 1st mash (3.95kg) Batch Sparge 70 °C 65 °C 60 min
2nd mash (3.95kg) Batch Sparge 70 °C 65 °C 60 min
7.5 L 3.5l after each mash. Sparge 71.2 °C 71 °C 20 min
Starting Mash Thickness: 3.65 L/kg
Starting Grain Temp: 22 °C
Quick Water Requirements
Water Liters
Strike water volume at mash thickness of 3.7 L/kg 27.8
Mash volume with grains 32.8
Grain absorption losses -7.6
Remaining sparge water volume (equipment estimates 4.4 L) 7.2
Mash Lauter Tun losses -0.9
Volume increase from sugar/extract (early additions) 0.2
Pre boil volume (equipment estimates 24 L) 26.7
Boil off losses -5.7
Hops absorption losses (first wort, boil, aroma) -0.3
Post boil Volume 18
Going into fermentor 18
Total: 35  
Equipment Profile Used: System Default
 
Notes

The double mash worked a treat. Conversion on the first mash was very high, higher than predicted. The second mash was conducted in the wort from the first mash.
OG was slightly over corrected to 1.094. The beer came out around 9,4% abv.
I made no calculations with the spices really, just went on flavour profile from my Winter Spiced Brown Ale which turned out perfect.
Long brew day but no complications. The yeast was a little past its best before but handled the fermentation despite the high gravity.

The beer was opened for the first time after three and a half weeks in the bottle, too soon? No. The beer has very good carbonation, lack of foam stability but with my experience with high gravity beers I'm not surprised.
The beer is perfectly balanced and tastes like an imperial stout, the fruit cake/Christmas cake flavours are there and this beer is worthy of a competition entry, I wonder how good this beer will be with age!
Boozy and strong, nice sweetness balanced with some bitters. Spice and malty flavours.

Last Updated and Sharing
 
280
Views
0
Brews
Recipe QR Code
  • Public: Yup, Shared
  • Last Updated: 2023-01-23 16:28 UTC