G'Knight Clone (Oskar Blues) - Beer Recipe - Brewer's Friend

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G'Knight Clone (Oskar Blues)

272 calories 26.1 g 12 oz
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Beer Stats
Method: BIAB
Style: Double IPA
Boil Time: 90 min
Batch Size: 3 gallons (ending kettle volume)
Pre Boil Size: 4 gallons
Pre Boil Gravity: 1.062 (recipe based estimate)
Efficiency: 70% (ending kettle)
Source: Brewing Network - Jamil Show CYBI
Calories: 272 calories (Per 12oz)
Carbs: 26.1 g (Per 12oz)
Created: Thursday March 26th 2015
1.082
1.018
8.5%
61.1
13.7
n/a
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
7.75 lb American - Pale 2-Row7.75 lb Pale 2-Row 37 1.8 80%
22 oz American - Caramel / Crystal 40L22 oz Caramel / Crystal 40L 34 40 14.2%
9 oz American - Munich - Light 10L9 oz Munich - Light 10L 33 10 5.8%
0.05 oz American - Chocolate0.05 oz Chocolate 29 350 0%
155.05 oz / $ 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
7 g Chinook7 g Chinook Hops Pellet 12.2 Boil 80 min 22.63 4.9%
50 g Columbus50 g Columbus Hops Pellet 13.8 Boil 10 min 38.47 35.2%
3 oz Amarillo3 oz Amarillo Hops Pellet 8.2 Dry Hop 5 days 59.9%
142.05 g / $ 0.00
 
Other Ingredients
Amount Name Cost Type Use Time
0.50 each Whirlfloc Fining Boil 10 min.
0.25 tsp Yeast Nutrient Other Boil 10 min.
 
Yeast
White Labs - California Ale Yeast WLP001
Amount:
1 Each
Cost:
Attenuation (avg):
76.5%
Flocculation:
Medium
Optimum Temp:
68 - 73 °F
Starter:
Yes
Fermentation Temp:
68 °F
Pitch Rate:
1.0 (M cells / ml / ° P) 225 B cells required
$ 0.00 Yeast Pitch Rate and Starter Calculator
 
Target Water Profile
Balanced Profile
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
80 5 25 75 80 100
Mash Chemistry and Brewing Water Calculator
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
3 gal BIAB Mash Infusion -- 150 °F 75 min
1.5 gal Pour Over Sparge Sparge -- 170 °F 10 min
Quick Water Requirements
Water Gallons  Quarts
Total strike volume 5.46 21.8  
Mash volume with grains 6.24 24.9  
Grain absorption losses -1.21 -4.8  
Mash Lauter Tun losses -0.25 -1  
Pre boil volume (equipment estimates 5.33 g | 21.3 qt) 4 16  
Boil off losses -2.25 -9  
Hops absorption losses (first wort, boil, aroma) -0.08 -0.3  
Post boil volume (equipment estimates 1.67 g | 6.7 qt) 3 12  
Estimated amount in fermentor 3 12  
Total: 5.46 21.8
Equipment Profile Used: System Default
 
Notes

Recipe based on the Jamil Show Can You Brew It? episode featuring Dave Chichura from Oskar Blues and Nathan Smith's clone attempt. The original recipe is here: http://www.thebrewingnetwork.com/forum/viewtopic.php?f=14&t=15591. The judges determined that the recipe was very close, but not identical. I am following their suggestions to scale back the IBU's and use a big pitch of yeast. The original recipe calls for Carastan, which my LBS does not carry, so I am substituting Crystal 40L (the additional color is offset by the fact that the recipe actually calls for Crystal 45L). The recipe also calls for Northern Brewer as bittering hop, but I am substituting Chinook since I have a lot of it. I also refactored for my usual 70% efficiency and smaller batch size, and to achieve target numbers using slightly different ingredients. The brewer suggests a mash temp of 152, but I will shoot for 148-150 to try to hit the stated target final gravity of 1.014. After my first attempt, I found the malt profile to be spot-on, but a little lacking in hop aroma and flavor, so I am doubling the dry-hops to 3oz for my next attempt.

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  • Last Updated: 2016-01-21 22:34 UTC