08-15-2009 Oberlin Best Bitter

A ProMash Brewing Session Report

Brewing Date: Saturday August 15, 2009
Head Brewer: Cal Frye
Asst Brewer:   
Recipe: Oberlin Best Bitter


BJCP Style and Style Guidelines
04-B Bitter & English Pale Ale, Special or Best Bitter

Min OG: 1.039 Max OG: 1.045   
Min IBU: 20 Max IBU: 45   
Min Clr: 6 Max Clr: 14  Color in SRM, Lovibond


Recipe Specifics
Batch Size (Gal): 5.00 Wort Size (Gal): 2.00
Total Grain (Lbs): 8.11      
Anticipated OG: 1.056 Plato: 13.76
Anticipated SRM: 8.8        
Anticipated IBU: 113.1      
Brewhouse Efficiency: 30  %   
Wort Boil Time: 60  Minutes   

Actual OG: 1.058 Plato: 14.27   
Actual FG: 1.012 Plato: 3.07   
Alc by Weight: 4.74 by Volume: 6.07 From Measured Gravities.
ADF: 78.5 RDF: 65.4 Apparent & Real Degree of Fermentation.


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: 5.88 Gal      
Pre-Boil Gravity: 1.047 SG 11.78 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: 0.60 Gal      
Water Needed Pre-Boil Gravity: 1.467 SG 87.70 Plato


Grain/Extract/Sugar
% Amount Name Origin Potential SRM
9.2 0.75 lbs.  Briess Caramel Malt 40 America 1.030 40
90.8 7.36 lbs.  Muntons LME - Light England 1.037 5

Potential represented as SG per pound per gallon.

Hops
Amount Name Form Alpha IBU Boil Time
0.50 oz.  Galena Pellet 13.00 19.9 First WH
1.50 oz.  Galena Pellet 13.00 66.3 60 min
2.00 oz.  Vanguard Whole 4.50 25.0 45 min
0.50 oz.  Northern Brewer homegrown Whole 7.50 1.9 5 min


Extras
Amount Name Type Time
1.00 Tsp  Irish Moss Fining 15 Min.(boil)
0.50 Tsp  Black Pepper Spice 0 Days(boil)
1.00 Tsp  Cinnamon Spice 0 Days(boil)
0.10 Oz  Wyeast Yeast Nutrient Other 0 Days(fermenter)


Yeast
Danstar Windsor


Water Profile
Profile: Oberlin
Profile known for:   
Calcium(Ca): 56.1 ppm
Magnesium(Mg): 11.1 ppm
Sodium(Na): 30.0 ppm
Sulfate(SO4): 100.0 ppm
Chloride(Cl): 37.0 ppm
biCarbonate(HCO3): 186.0 ppm
pH: 8.90


Mash Schedule
Mash Type: Multi Step   
Heat Type: Direct   
Grain Lbs: 0.75   
Water Qts: 0.75 Before Additional Infusions
Water Gal: 0.19 Before Additional Infusions
Qts Water Per Lbs Grain: 1.00 Before Additional Infusions
Tun Thermal Mass: 0.00   
Grain Temp: 80 F Before Additional Infusions

Rest Temp Time
Dough In: 94 1 Min
Acid Rest: 0 0 Min
Protein Rest: 1 20 Min
Intermediate Rest: 0 0 Min
Saccharification Rest: 145 45 Min
Mash-out Rest: 166 10 Min
Sparge: 0 0 Min

Total Mash Volume Gal: 0.25 - 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: 8 OZ
Lag Time: 0.00 hours

Primary Fermenter: Plastic
Primary Type: Closed
Days In Primary: 7
Primary Temperature: 75 degrees F

Secondary Fermenter: Glass
Secondary Type: Closed
Days In Secondary: 7
Secondary Temperature: 0 degrees F

Original Gravity: 1.058 SG 14.27 Plato
Finishing Gravity: 1.012 SG 3.07 Plato



Bottling/Kegging Specifics
Bottling Date: Saturday August 29, 2009
Desired Carbonation Level: 2.30 Volumes CO2
Fermentation Temperature: 68 F

Amount Kegged: 5.00 Gallons
Days Conditioned: 0
Carbonation Method: Forced
Carbonation Temperature: 42 F
Pressure Used: 0.00 Psi



Mash Notes
Steeping went well, temp control with electric bucket is good. Easy to boil over, thought! Must try to insert diode in one of the elements for next time.


Fermentation Notes
rehydrated dry yeast while boiling, pitched 1 pkg yeast in 8oz warm water, airlock slowly started to move immediately at start.


Notes
Malt, hops schedule a bit out of style, using ingredients at hand.




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