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Imperial Stout 2008

A ProMash Recipe Report



BJCP Style and Style Guidelines
13-F Stout, Russian Imperial Stout

Min OG: 1.075 Max OG: 1.114   
Min IBU: 50 Max IBU: 100   
Min Clr: 30 Max Clr: 48  Color in SRM, Lovibond


Recipe Specifics
Batch Size (Gal): 11.00 Wort Size (Gal): 11.00
Total Grain (Lbs): 43.00      
Anticipated OG: 1.121 Plato: 28.32
Anticipated SRM: 55.0        
Anticipated IBU: 81.0      
Brewhouse Efficiency: 85  %   
Wort Boil Time: 120  Minutes   


Pre-Boil Amounts
Evaporation Rate: 15.00  Percent Per Hour   
Pre-Boil Wort Size: 15.71  Gal   
Pre-Boil Gravity: 1.085  SG 20.42 Plato


Formulas Used
Brewhouse Efficiency and Predicted Gravity based on Method #1, Potential Used.
Final Gravity Calculation Based on Points.
Hard Value of Sucrose applied. Value for recipe: 46.2100 ppppg
% Yield Type used in Gravity Prediction: Fine Grind Dry Basis.

Color Formula Used: Morey
Hop IBU Formula Used: Rager

Additional Utilization Used For Plug Hops: 2 %
Additional Utilization Used For Pellet Hops: 10 %


Grain/Extract/Sugar
% Amount Name Origin Potential SRM
48.8 21.00 lbs.  Maris Otter Great Britain 1.038 3
17.4 7.50 lbs.  Maris Otter Great Britain 1.038 3
11.6 5.00 lbs.  Brown Malt Great Britain 1.032 70
4.7 2.00 lbs.  Biscuit Malt Great Britain 1.035 35
4.7 2.00 lbs.  Victory Malt America 1.034 25
3.5 1.50 lbs.  Chocolate Malt America 1.029 350
2.3 1.00 lbs.  Black Patent Malt America 1.028 525
2.3 1.00 lbs.  Cane Sugar Generic 1.046 0
2.3 1.00 lbs.  Crystal 60L America 1.034 60
1.7 0.75 lbs.  Roasted Barley America 1.028 450
0.6 0.25 lbs.  Carafa III (dehusked) Germany 1.030 450

Potential represented as SG per pound per gallon.

Hops
Amount Name Form Alpha IBU Boil Time
4.00 oz.  Northern Brewer Pellet 8.00 58.1 90 min
1.00 oz.  Chinook Pellet 11.20 20.3 90 min
1.80 oz.  Fuggle Pellet 4.30 2.6 10 min


Extras
Amount Name Type Time
0.00 Oz  Irish Moss Fining 20 Min.(boil)


Yeast
White Labs WLP001 California Ale


Mash Schedule
Mash Type: Multi Step   
Grain Lbs: 42.00   
Water Qts: 30.00 Before Additional Infusions
Water Gal: 7.50 Before Additional Infusions
Qts Water Per Lbs Grain: 0.71 Before Additional Infusions

Rest Temp Time
Acid Rest: 0 0 Min
Protein Rest: 122 30 Min
Intermediate Rest: 0 0 Min
Saccharification Rest: 152 60 Min
Mash-out Rest: 170 0 Min
Sparge: 170 0 Min

Total Mash Volume Gal: 10.86 - Dough-In Infusion Only
All temperature measurements are degrees Fahrenheit.

Notes
two mashes, similar to past brew

21# maris + 5# brown + 2# biscuit + 2# victory = 30# "low" mash @ 152F

7.5# maris + 1.5# chocolate + 1# black patent + 1# crystal + .75# roasted barley + .25# carafa iii = 12# "high" mash @ 158F

collected 3gal total first runnings from both mashes, added 1# sucanat sugar and boiled for 2hrs before re-adding to main boil. cane sugar in recipe is actually organic sucanat sugar.

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© 2004-2011 Biergötter Homebrew Club. Disclaimer.
Last Modified: Friday, 18-Sep-2009 08:20:17 MST