08-10-2003 Black Butte Porter

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













A ProMash Brewing Session Report

Brewing Date: Sunday August 10, 2003
Head Brewer: Jeff McClain
Asst Brewer:   
Recipe: Black Butte Porter


BJCP Style and Style Guidelines
15-A Porter, Robust Porter

Min OG: 1.050 Max OG: 1.065   
Min IBU: 25 Max IBU: 45   
Min Clr: 30 Max Clr: 90  Color in SRM, Lovibond


Recipe Specifics
Batch Size (Gal): 10.00 Wort Size (Gal): 10.00
Total Grain (Lbs): 21.50      
Anticipated OG: 1.057 Plato: 14.09
Anticipated SRM: 23.2        
Anticipated IBU: 36.3      
Brewhouse Efficiency: 75  %   
Wort Boil Time: 90  Minutes   

Actual OG: 1.046 Plato: 11.44   
Actual FG: 1.015 Plato: 3.83   
Alc by Weight: 3.18 by Volume: 4.08 From Measured Gravities.
ADF: 66.5 RDF: 55.5 Apparent & Real Degree of Fermentation.

Actual Mash System Efficiency: 61 %
Anticipated Points From Mash: 57.21
Actual Points From Mash: 46.69


Pre-Boil Amounts
Evaporation Rate: 10.00 Percent Per Hour

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

Pre-Boil Wort Size: 11.76 Gal      
Pre-Boil Gravity: 1.049 SG 12.06 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: 11.94 Gal      
Water Needed Pre-Boil Gravity: 1.048 SG 11.89 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
88.4 19.00 lbs.  Pale Malt(2-row) America 1.036 2
5.8 1.25 lbs.  Chocolate Malt America 1.029 350
5.8 1.25 lbs.  Crystal 60L America 1.034 60

Potential represented as SG per pound per gallon.

Hops
Amount Name Form Alpha IBU Boil Time
0.75 oz.  Galena Pellet 13.00 23.2 60 min
1.50 oz.  Cascade Pellet 5.75 10.5 30 min
1.50 oz.  Tettnanger Pellet 4.50 2.7 5 min


Extras
Amount Name Type Time
0.15 Oz  Irish Moss Fining 15 Min.(boil)


Yeast
WYeast 1099 Whitbread Ale


Mash Schedule
Mash Type: Single Step   
Heat Type: Infusion   
Grain Lbs: 21.50   
Water Qts: 30.10 Before Additional Infusions
Water Gal: 7.53 Before Additional Infusions
Qts Water Per Lbs Grain: 1.40 Before Additional Infusions
Tun Thermal Mass: 0.00   
Grain Temp: 80 F Before Additional Infusions

Rest Temp Time
Dough In: 162 15 Min
Saccharification Rest: 152 60 Min
Mash-out Rest: 162 20 Min
Sparge: 172 20 Min

Total Mash Volume Gal: 9.24 - After Additional Infusions

Runnings Stopped At: 1.010 SG 2.56 Plato

All temperature measurements are degrees Fahrenheit.


Water Needed For Brewing Session
Sparge Amount: 7.25 Sparge Deadspace: 0.00 Total Into Mash: 7.25
Total Grain Lbs: 21.50 Qts Per Lbs: 1.40 Total From Mash: 4.95
      Mash Gallons: 7.53      
      Grain Absorption: 2.58      
Amount Lost in Lauter Tun Deadspace, Grant and Misc. to Kettle: 0.25
     
Top Up Water Added to Kettle: 0.00
Amount into Kettle: 11.94
     
Boil Time (min): 90
Evaporation Rate: 10.00
Amount after Boil: 10.15
     
Left in Kettle Deadspace: 0.25
Left in Hopback: 0.00
Left in Counterflow Chiller: 0.00
Left in Other Equipment / Other Absorption: 0.00
     
Amount to Chillers: 9.90
Amount After Cooling (4 perc.): 9.51

Grain absorption rate is: 0.12 (Gallons Per Lbs)
Evaporation rate is Percent per Hour
This formulation will yield 9.51 gallons of fermentable wort.
You will need 14.77 gallons of water for the complete brewing session.


Efficiency Specifics
Recipe Efficiency Setting: 75 %

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

Target Volume (Gal): 11.94      
Estimated OG: 1.048 Plato: 11.89

Raw Pre-Boil Targets - only targeted volume/gravity and evaporation
rate taken into account:
Target Volume (Gal): 11.76      
Estimated OG: 1.049 Plato: 12.06

Post-Boil Targets:
Target Volume (Gal): 10.00      
Estimated OG: 1.057 Plato: 14.09

Recorded Actuals - Measurement Taken In Kettle:
Recorded Volume (Gal): 10.15      
Recorded OG: 1.046 Plato: 11.44

At 100 percent extraction from the maximum mash potential:
Total Points: 76.28
Points From Mash: 76.28
Points From Extract/Sugar: 0.00

With the recipe efficiency setting, you should have achieved:
Total Points: 57.21
Points From Mash: 57.21
Points From Extract/Sugar: 0.00

Actuals achieved were:
Actual Points From Mash: 46.69
Actual Mash System Efficiency: 61 %


Fermentation Specifics
Pitched From: Liquid Pack
Amount Pitched: 20 mL
Lag Time: 30.00 hours

Primary Fermenter: Glass
Primary Type: Closed
Days In Primary: 14
Primary Temperature: 71 degrees F

Secondary Fermenter: Stainless Steel
Secondary Type: Closed
Days In Secondary: 14
Secondary Temperature: 71 degrees F

Original Gravity: 1.046 SG 11.44 Plato
Finishing Gravity: 1.015 SG 3.83 Plato



Bottling/Kegging Specifics
Bottling Date: Sunday August 17, 2003
Desired Carbonation Level: 2.70 Volumes CO2
Fermentation Temperature: 72 F

Amount Kegged: 10.00 Gallons
Days Conditioned: 3
Carbonation Method: Forced
Carbonation Temperature: 38 F
Pressure Used: 14.44 Psi



Mash Notes
1) Started @ 7AM. Sanitized and ready to go by 8AM. 2) Brought 7.5 gallons to 162'F in mashtun through exchange and some infusion from HLT. HLT was @ 170'F. 3) Added grains. Struck 152'F dead on. Mash recirculating for 60 minutes. 4) Mashout started at 10AM. Initial runnings: 5 gallons at 1.057. 5) Sparged an additional 7 gallons with average 1.021 gravity 6) Preboil: 12 gallons @ 1.036 7) Postboil (after 90 minute boil): 10.2 gallons @ 1.046 8) Forgot to turn the CFC flow on for the first part of the second 5 gallon carboy. Cooled in bath water. At 76'F in 2 hours.


Fermentation Notes
1) Pitched single pack of XL WYeast for both carboys. Didn't slap it until 7 hours before pitching, and it was only about half way swollen. 2) Aerated heavily. 3) First signs of fermentation showing in both carboys at 30 hours. 4) At 40 hours, getting 4-5 bubbles per second. 5) 1.017 on 8/16 (6.1 Brix reading). 6) 1.015 on 8/24 (6.2 Brix reading).


Tasting Notes
Very nice roasty/bitter taste. Color is a bit cloudy after only 4 days, but clearing and is lighter in color than the original. Taste is slightly less carbonation, but very smooth and well rounded with very little after taste beyond the initial bitter/roasted taste.


Problem Notes
Missed OG and FG finished high. Will adjust brew house eff to 65% until I can get this under control. Forgot to turn on CFC flow to cool on half of the second carboy.




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