10-15-2004 Big Sky Brewing's Moose Drool

Promash Session (r-click and click save-as)











Brewing Date: Friday October 15, 2004
Head Brewer: Jeff McClain
Asst Brewer: Jason Hoodenpyle
Recipe: Moose Drool - 20 gallon


BJCP Style and Style Guidelines
10-D Brown Ale, American Brown Ale

Min OG: 1.040 Max OG: 1.060   
Min IBU: 25 Max IBU: 60   
Min Clr: 15 Max Clr: 22  Color in SRM, Lovibond


Recipe Specifics
Batch Size (Gal): 20.00 Wort Size (Gal): 20.00
Total Grain (Lbs): 42.38      
Anticipated OG: 1.0599 Plato: 14.72
Anticipated SRM: 20.0        
Anticipated IBU: 30.9      
Brewhouse Efficiency: 80  %   
Wort Boil Time: 80  Minutes   

Actual OG: 1.0550 Plato: 13.57   
Actual FG: 1.0190 Plato: 4.83   
Alc by Weight: 3.69 by Volume: 4.75 From Measured Gravities.
ADF: 64.4 RDF: 54.0 Apparent & Real Degree of Fermentation.

Actual Mash System Efficiency: 81 %
Anticipated Points From Mash: 59.89
Actual Points From Mash: 60.44


Pre-Boil Amounts
Evaporation Rate: 12.00 Percent Per Hour

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

Pre-Boil Wort Size: 23.81 Gal      
Pre-Boil Gravity: 1.0503 SG 12.46 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: 25.16 Gal      
Water Needed Pre-Boil Gravity: 1.0476 SG 11.82 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: 1.15

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


Grain/Extract/Sugar
% Amount Name Origin Potential SRM
81.4 34.50 lbs.  Pale Malt(2-row) America 1.0360 2
4.7 2.00 lbs.  Flaked Oats America 1.0330 2
8.8 3.75 lbs.  Crystal 80L    1.0330 80
2.0 0.86 lbs.  Chocolate Malt America 1.0290 350
2.0 0.86 lbs.  Caramel Pils Malt Belgium 1.0340 2
0.9 0.40 lbs.  Black Patent Malt America 1.0280 525

Potential represented as SG per pound per gallon.

Hops
Amount Name Form Alpha IBU Boil Time
5.00 oz.  Goldings - E.K. Whole 4.75 20.1 60 min
4.00 oz.  Liberty Pellet 4.00 9.0 20 min
2.00 oz.  Willamette Whole 5.00 1.7 5 min


Yeast
WYeast 1968 London Extra Special Bitter


Mash Schedule
Mash Type: Single Step   
Heat Type: Direct   
Grain Lbs: 42.38   
Water Qts: 46.00 Before Additional Infusions
Water Gal: 11.50 Before Additional Infusions
Qts Water Per Lbs Grain: 1.09 Before Additional Infusions
Tun Thermal Mass: 0.00   
Grain Temp: 80 F Before Additional Infusions

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

Total Mash Volume Gal: 14.89 - After Additional Infusions

Runnings Stopped At: 1.0100 SG 2.56 Plato

All temperature measurements are degrees Fahrenheit.


Water Needed For Brewing Session
Sparge Amount: 19.00 Sparge Deadspace: 0.00 Total Into Mash: 19.00
Total Grain Lbs: 42.38 Qts Per Lbs: 1.09 Total From Mash: 6.41
      Mash Gallons: 11.50      
      Grain Absorption: 5.09      
Amount Lost in Lauter Tun Deadspace, Grant and Misc. to Kettle: 0.25
     
Top Up Water Added to Kettle: 0.00
Amount into Kettle: 25.16
     
Boil Time (min): 80
Evaporation Rate: 12.00
Amount after Boil: 21.14
     
Left in Kettle Deadspace: 0.50
Left in Hopback: 0.00
Left in Counterflow Chiller: 0.00
Left in Other Equipment / Other Absorption: 0.00
     
Amount to Chillers: 20.64
Amount After Cooling (4 perc.): 19.81

Grain absorption rate is: 0.12 (Gallons Per Lbs)
Evaporation rate is Percent per Hour
This formulation will yield 19.81 gallons of fermentable wort.
You will need 30.50 gallons of water for the complete brewing session.


Efficiency Specifics
Recipe Efficiency Setting: 80 %

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

Target Volume (Gal): 25.16      
Estimated OG: 1.0476 Plato: 11.82

Raw Pre-Boil Targets - only targeted volume/gravity and evaporation
rate taken into account:
Target Volume (Gal): 23.81      
Estimated OG: 1.0503 Plato: 12.46

Post-Boil Targets:
Target Volume (Gal): 20.00      
Estimated OG: 1.0599 Plato: 14.72

Recorded Actuals - Measurement Taken In Ferementer:
Recorded Volume (Gal): 21.50      
+Losses (Gal): 0.48      
Total Volume (Gal): 21.98      
Recorded OG: 1.0550 Plato: 13.57

At 100 percent extraction from the maximum mash potential:
Total Points: 74.87
Points From Mash: 74.87
Points From Extract/Sugar: 0.00

With the recipe efficiency setting, you should have achieved:
Total Points: 59.89
Points From Mash: 59.89
Points From Extract/Sugar: 0.00

Actuals achieved were:
Actual Points From Mash: 60.44
Actual Mash System Efficiency: 81 %


Fermentation Specifics
Pitched From: Liquid Pack
Amount Pitched: 8 OZ
Lag Time: 42.00 hours

Primary Fermenter: Glass
Primary Type: Closed
Days In Primary: 21
Primary Temperature: 70 degrees F

Original Gravity: 1.0550 SG 13.57 Plato
Finishing Gravity: 1.0190 SG 4.83 Plato



Mash Notes
Dough in at 8:30AM to 123'F with 10 gallons. pH=5.5. Initial runnings ~6.0 gal @ 24.5 Brix = 1.099. Preboil 24.0 gallons. Keg A 12.00 gallons 1.052. Keg B 12.50 gal 1.043. FG: Keg A 10.5 gal 1.0591. Keg B 11.0 gal 1.050.


Fermentation Notes
Racked to kegs 11/06. Keg A 1.021 (5.02 ABV 63% AA) Keg B 1.017 (4.35 ABV 65% AA).


Problem Notes
EXTREMELY long lag time on fermentation. Yeast was over 6 months old...


Notes
From Big Sky Brewing Company: Moose Drool is our Brown Ale. Far and away the best selling beer brewed in Montana, Moose Drool is chocolate brown in color with a creamy texture. Our brown ale is a malty beer with just enough hop presence to keep it from being too sweet. The aroma also mostly comes from the malt with a hint of spiciness being added by the hops. Moose Drool is brewed with pale, caramel, chocolate, and whole black malts; and Kent Goldings, Liberty, and Willamette hops. It has an original gravity of 13 degrees Plato, and is 4.2% alcohol by weight, 5.3% by volume.




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