Imperial IPA – All Grain


General Info

Buddy Brew with Danielle Robinson. Double IPA brewed with seven "C" hops. Inspired by Dry Dock Brewing Company's beer of the (formerly) same name.


Substituted Calypso hops for Crystal.

Compared with the inspirational brew when at five weeks of age. Original was "smoother" - mine had a stronger bitterness bite to it; possibly a combination of fusel alcohols and minerals in the water. Original had more hop aroma and a lighter color. Aside from these three differences, all who sampled (five people), said this was "very close" to the inspirational beer.

Malts and Grains

Amount Malt/Grain %
30.00 pounds Scottish Golden Promise 100%
30.00 pounds Total Grain Weight 100%


Amount Non-Fermentable Time
5 grams Gypsum (Calcium Sulfate) 90 minutes


Amount Hop Time AA
1.20 ounces Chinook 90 min 13.1%
0.60 ounces Citra 70 min 14.1%
0.50 ounces Columbus 50 min 17.7%
0.65 ounces Calypso 50 min 12.0%
0.75 ounces Challenger 45 min 6.5%
0.80 ounces Centennial 30 min 8.8%
0.50 ounces Cascade 20 min 7.6%
1.00 ounces Chinook 10 min 13.1%
1.25 ounces Challenger 5 min 6.5%
2.20 ounces Cascade 2 min 7.6%
0.50 ounces Columbus 0 min 13.9%
9.95 ounces Total Hop Weight


Name Lab/Manufacturer Product ID Amount
American Ale II Wyeast 1272 2000 ml

Equipment Profile 15 Gallon/57 Liter Brew Pot (15) and 10 Gallon/38 Liter Cooler Mash Tun

Mash Profile Single Infusion Mash, Light Bodied Beer, No Mash Out


Mash profile for most well-modified malts.

Mash Steps

# Name Time Temp. Description
1 Mash In 75 min. 150°F

Add 100% of mash water at 162° F / 72° C

Water Profile Distilled Water

Special Procedures

Dry hop with the remnants of each fractional ounce of hops plus the designated dry hop addition.

Fermentation and Aging

14 days @ 70° F
14 days @ 70° F
21 days @ 50° F

Seventh Son

Date Brewed:  

Brew Day Data

  Target Actual Notes
Strike Water Amount: 10    
Strike Water Temperature:      
Mash Temperature(s):      
Mash Time:      
Sparge Water Amount: 7.4    
Sparge Water Temperature:      
Pre-Boil Gravity:      
Pre-Boil Amount: 11    
Post-Boil Amount: 10    
Boil Time: 90    
OG: 1.078 / 18.9° P    
Mash PH:      
Boil PH:      

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