2002-12-30 da Zoo Stout
A ProMash Brewing Session Report
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Brewing Date:
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Monday December 30, 2002
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Head Brewer:
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Fred Bonjour
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Asst Brewer:
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Recipe:
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da Zoo Stout
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BJCP Style and Style Guidelines
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12-C Barleywine & Imperial Stout, Russian Imperial Stout
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Min OG:
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1.075
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Max OG:
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1.095
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Min IBU:
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50
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Max IBU:
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90
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Min Clr:
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20
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Max Clr:
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40
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Color in SRM, Lovibond
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Batch Size (Gal):
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6.00
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Wort Size (Gal):
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6.00
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Total Grain (Lbs):
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25.88
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Anticipated OG:
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1.092
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Plato:
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22.09
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Anticipated SRM:
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68.4
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Anticipated IBU:
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57.1
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Brewhouse Efficiency:
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72
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%
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Wort Boil Time:
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60
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Minutes
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Actual OG:
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1.091
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Plato:
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21.74
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Actual FG:
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1.041
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Plato:
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10.23
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Alc by Weight:
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5.05
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by Volume:
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6.64
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From Measured Gravities.
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ADF:
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52.9
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RDF:
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45.5
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Apparent & Real Degree of Fermentation.
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Actual Mash System Efficiency:
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72 %
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Anticipated Points From Mash:
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92.41
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Actual Points From Mash:
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92.00
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%
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Amount
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Name
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Origin
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Potential
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SRM
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52.2
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13.50 lbs.
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Briess Pale Malt
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America
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1.037
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4
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20.3
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5.25 lbs.
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Flaked Barley
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America
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1.032
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2
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13.5
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3.50 lbs.
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Briess Roasted Barley
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America
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1.002
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300
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5.8
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1.50 lbs.
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Munich Malt(light)
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America
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1.033
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10
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5.8
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1.50 lbs.
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Special B Malt
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Belgian
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1.030
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120
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2.2
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0.56 lbs.
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Briess Black Malt
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America
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1.002
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500
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0.3
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0.07 lbs.
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Licorice Stick
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0.000
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0
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Potential represented as SG per pound per gallon.
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Amount
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Name
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Form
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Alpha
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IBU
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Boil Time
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0.75 oz.
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Nugget
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Pellet
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13.00
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33.0
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60 min
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1.50 oz.
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Fuggle
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Pellet
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4.75
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24.1
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60 min
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Slant Kalamazoo Brewery Captured Sl
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Rest
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Temp
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Time
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Dough In:
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171
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0 Min
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Saccharification Rest:
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158
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60 Min
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Mash-out Rest:
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170
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10 Min
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Sparge:
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170
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0 Min
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Total Mash Volume Gal: 10.22 - After Additional Infusions
Runnings Stopped At: 1.010 SG 2.56 Plato
All temperature measurements are degrees Fahrenheit.

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Original Gravity:
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1.091 SG
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21.74
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Plato
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Finishing Gravity:
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1.041 SG
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10.23
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Plato
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Roast is not as powerful as I thought it might be. Carol Anne thought it has possibilities, she doesn't generally like stouts.
This is a lot of Roast, but it works with the high (158F) mash, very well balanced at 5 months. Gravity was toward the high end, ABV toward the low end of the style. Add more base malt to bump the ABV.
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Generated with ProMash Brewing Software |