Walt Sweeney's Vanilla Oatmeal Stout

A ProMash Brewing Session Report

Brewing Date: Monday January 30, 2006
Head Brewer: Sweeney
Asst Brewer:   
Recipe: Vanilla Oatmeal Stout


BJCP Style and Style Guidelines
13-C Stout, Oatmeal Stout

Min OG: 1.048 Max OG: 1.065   
Min IBU: 25 Max IBU: 48   
Min Clr: 22 Max Clr: 60  Color in SRM, Lovibond


Recipe Specifics
Batch Size (Gal): 11.00 Wort Size (Gal): 11.00
Total Grain (Lbs): 24.25      
Anticipated OG: 1.060 Plato: 14.78
Anticipated SRM: 41.8        
Anticipated IBU: 27.7      
Brewhouse Efficiency: 75  %   
Wort Boil Time: 90  Minutes   

Actual OG: 1.061 Plato: 14.94   
Actual FG: 1.013 Plato: 3.32   
Alc by Weight: 4.93 by Volume: 6.32 From Measured Gravities.
ADF: 77.8 RDF: 64.8 Apparent & Real Degree of Fermentation.

Actual Mash System Efficiency: 76 %
Anticipated Points From Mash: 60.19
Actual Points From Mash: 61.29


Pre-Boil Amounts
Evaporation Rate: 15.00 Percent Per Hour

Raw Pre-Boil Amounts - only targeted volume/gravity and evaporation
rate taken into account:

Pre-Boil Wort Size: 14.19 Gal      
Pre-Boil Gravity: 1.047 SG 11.59 Plato

With sparge water, mash water, additional infusions, vessel losses, top-up
water and evaporation rate recorded in the Water Needed Calculator:

Water Needed Pre-Boil Wort Size: 7.92 Gal      
Water Needed Pre-Boil Gravity: 1.084 SG 20.13 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: TinsethTinseth Concentration Factor: 1.30

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


Grain/Extract/Sugar
% Amount Name Origin Potential SRM
73.2 17.75 lbs.  Maris Otter (2-row) England 1.038 3
12.4 3.00 lbs.  Flaked Oats America 1.033 2
3.1 0.75 lbs.  Crystal 40L America 1.034 40
8.2 2.00 lbs.  Roasted Barley Morebeer 1.031 510
3.1 0.75 lbs.  Chocolate wheat America 1.029 400

Potential represented as SG per pound per gallon.

Hops
Amount Name Form Alpha IBU Boil Time
2.00 oz.  Bullion Pellet 7.00 25.0 60 min
0.50 oz.  Goldings - E.K. Pellet 3.30 2.7 45 min


Yeast
US 1056


Mash Schedule
Mash Type: Single Step   
Heat Type: Direct   
Grain Lbs: 24.25   
Water Qts: 18.33 Before Additional Infusions
Water Gal: 4.58 Before Additional Infusions
Qts Water Per Lbs Grain: 0.76 Before Additional Infusions
Tun Thermal Mass: 0.10   
Grain Temp: 80 F Before Additional Infusions

Rest Temp Time
Dough In: 0 0 Min
Saccharification Rest: 154 60 Min
Mash-out Rest: 165 10 Min
Sparge: 0 0 Min

Total Mash Volume Gal: 6.52 - After Additional Infusions

Runnings Stopped At: 1.010 SG 2.56 Plato

All temperature measurements are degrees Fahrenheit.


Fermentation Specifics
Pitched From: Dry Pack
Amount Pitched: 11 mL
Lag Time: 5.00 hours

Primary Fermenter: Glass
Primary Type: Closed
Days In Primary: 8
Primary Temperature: 73 degrees F

Secondary Fermenter: Stainless Steel
Secondary Type: Closed
Days In Secondary: 8
Secondary Temperature: 41 degrees F

Original Gravity: 1.061 SG 14.94 Plato
Finishing Gravity: 1.013 SG 3.32 Plato



Notes
Made extract of 1/2 cup vodka and 4 vanilla beans Added 1/4 cup of this extract at day 8 when racked to each keg


Awards
1st place Veg / Spice beers 2006 Shamrock Open




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