Brewer's Friend

Print

Double Jack - Can you brew it

294 calories 36.1 g 12 oz
brewer logo
Beer Stats
Method: All Grain
Style: Imperial IPA
Boil Time: 90 min
Batch Size: 6 gallons (ending kettle volume)
Pre Boil Size: 7.5 gallons
Pre Boil Gravity: 1.070 (recipe based estimate)
Efficiency: 70% (ending kettle)
Calories: 294 calories (Per 12oz)
Carbs: 36.1 g (Per 12oz)
Created: Wednesday December 7th 2016
1.087
1.030
7.5%
152.1
7.4
n/a
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
16.80 lb American - Pale 2-Row16.8 lb Pale 2-Row 37 1.8 81.8%
0.25 lb United Kingdom - Cara Malt0.25 lb Cara Malt 35 17.5 1.2%
2.50 lb American - Munich - Light 10L2.5 lb Munich - Light 10L 33 10 12.2%
1 lb American - Carapils (Dextrine Malt)1 lb Carapils (Dextrine Malt) 33 1.8 4.9%
20.55 lbs / $ 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
2 oz Warrior2 oz Warrior Hops Pellet 16 Boil 90 min 90.9 4.9%
1 oz Centennial1 oz Centennial Hops Pellet 10 Boil 30 min 20.41 2.5%
1 oz Cascade1 oz Cascade Hops Pellet 7 Boil 30 min 14.29 2.5%
1 oz Chinook1 oz Chinook Hops Pellet 13 Boil 30 min 26.53 2.5%
2.50 oz Cascade2.5 oz Cascade Hops Pellet 7 Boil 0 min 6.1%
44 g Centennial44 g Centennial Hops Pellet 10 Dry Hop 7 days 3.8%
44 g Cascade44 g Cascade Hops Pellet 7 Dry Hop 7 days 3.8%
30 g Cascade30 g Cascade Hops Pellet 7 Dry Hop 3 days 2.6%
30 g Centennial30 g Centennial Hops Pellet 10 Dry Hop 3 days 2.6%
14 oz Amarillo14 oz Amarillo Hops Pellet 8.6 Dry Hop 3 days 34.4%
14 oz Simcoe14 oz Simcoe Hops Pellet 11 Dry Hop 3 days 34.4%
40.72 oz / $ 0.00
 
Yeast
White Labs - English Ale Yeast WLP002
Amount:
1 Each
Cost:
Attenuation (avg):
66.5%
Flocculation:
Very High
Optimum Temp:
65 - 68 °F
Starter:
No
Fermentation Temp:
66 °F
Pitch Rate:
-
$ 0.00 Yeast Pitch Rate and Starter Calculator
 
Target Water Profile
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
0 0 0 0 0 0
I used my Freak of Nature water profile the first time I made this, but I thought it came off as too bitter. Can You Brew It recommends:

"RO Water. Add gypsum and CaCl to 100ppm"

Which sounds very reproducible but... 100ppm of what?? Ca? SO4? what?? I can only imagine that the guy who transcribed the recipe had not idea about water chemistry so I may have to listen to the podcast myself to decipher this.
Mash Chemistry and Brewing Water Calculator
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
Infusion -- 145 °F 30 min
Infusion -- 155 °F 30 min
Starting Mash Thickness: 2 qt/lb
Quick Water Requirements
Water Gallons  Quarts
Strike water volume at mash thickness of 2 qt/lb 10.28 41.1  
Mash volume with grains 11.92 47.7  
Grain absorption losses -2.57 -10.3  
Remaining sparge water volume 0.04 0.2  
Mash Lauter Tun losses -0.25 -1  
Pre boil volume (equipment estimates 8.53 g | 34.1 qt) 7.5 30  
Boil off losses -2.25 -9  
Hops absorption losses (first wort, boil, aroma) -0.28 -1.1  
Post boil volume (equipment estimates 4.97 g | 19.9 qt) 6 24  
Estimated amount in fermentor 6 24  
Total: 10.32 41.3
Equipment Profile Used: System Default
 
Notes

Started with the Can You Brew It recipe for Union Jack: http://www.homebrewtalk.com/showthread.php?t=188929

Supposedly, Double Jack is at least the same grain bill but with a higher gravity.

They also suggested Cara Stan as a substitute for Cara Malt.

The hop schedule is taken/adapted from: http://www.bertusbrewery.com/2012/11/ipa-clone-series-firestone-walker.html I actually made this recipe but found that I likely messed up by switching the yeast to US-04. It wasn't good, but the guy who provided that recipe was so thrilled with his result, I thought it was worth keeping.

My biggest complaint having made that beer was that the malt flavor wasn't right (not sweet enough) and that the aroma had a lot of yeast quality I wasn't expecting. Both can be corrected by just using WLP002. But I do like the idea of tweaking the malt bill a bit as well.

Last Updated and Sharing
 
931
Views
0
Brews
Recipe QR Code
  • Public: Yup, Shared
  • Last Updated: 2016-12-07 21:04 UTC