Batch 1 of McQuaker's Oatmeal Stout

Dates
Date Brewed: 11 Oct 2009 Date Racked: 11 Oct 2009
Date Packaged: 11 Oct 2009 Date Ready: 11 Oct 2009


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

Minimum OG: 1.048 SG Maximum OG: 1.065 SG
Minimum FG: 1.010 SG Maximum FG: 1.018 SG
Minimum IBU: 25 IBU Maximum IBU: 40 IBU
Minimum Color: 22.0 SRM Maximum Color: 40.0 SRM


Recipe Overview
Target Wort Volume Before Boil: 7.00 US gals Actual Wort Volume Before Boil: 7.00 US gals
Target Wort Volume After Boil: 5.50 US gals Actual Wort Volume After Boil: 5.50 US gals
Target Volume Transferred: 5.15 US gals Actual Volume Transferred: 5.28 US gals
Target Volume At Pitching: 5.15 US gals Actual Volume At Pitching: 5.28 US gals
Target Volume Of Finished Beer: 5.00 US gals Actual Volume Of Finished Beer: 5.00 US gals
Target Pre-Boil Gravity: 1.047 SG Actual Pre-Boil Gravity: 1.050 SG
Target OG: 1.059 SG Actual OG: 1.067 SG
Target FG: 1.018 SG Actual FG: 1.019 SG
Target Apparent Attenuation:: 69.0 % Actual Apparent Attenuation: 70.9 %
Target ABV: 5.5 % Actual ABV: 6.5 %
Target ABW: 4.3 % Actual ABW: 5.0 %
Target IBU (using Tinseth): 32.8 IBU Actual IBU: 31.8 IBU
Target Color (using Morey): 37.5 SRM Actual Color: 37.5 SRM
Target Mash Efficiency: 70.0 % Actual Mash Efficiency: 75.6 %
Target Fermentation Temp: 68 degF Actual Fermentation Temp: 68 degF


Fermentables
Ingredient Amount % MCU When
UK Pale Ale Malt 9lb 6oz 72.9 % 5.1 In Mash/Steeped
UK Flaked Oats 1lb 0oz 7.8 % 0.5 In Mash/Steeped
US Victory Malt 12.00 oz 5.8 % 3.8 In Mash/Steeped
US Chocolate Malt 12.00 oz 5.8 % 47.7 In Mash/Steeped
US Black Barley 8.00 oz 3.9 % 45.5 In Mash/Steeped
US Caramel 80L Malt 8.00 oz 3.9 % 7.3 In Mash/Steeped


Hops
Variety Alpha Amount IBU Form When
UK Golding 4.5 % 1.80 oz 30.9 Loose Pellet Hops All Of Boil
UK Golding 4.5 % 0.20 oz 1.9 Loose Pellet Hops 20 Min From End


Other Ingredients
Ingredient Amount When
Whirlfloc Tablet 1.00 oz In Boil
Yeast Nutrient 0.08 oz In Boil


Yeast
Wyeast 1968-London ESB Ale


Water Profile
Target Profile: Dublin (IE)
Mash pH: 5.2
pH Adjusted with: Unadjusted

Total Calcium (ppm): 71 Total Magnesium (ppm): 0
Total Sodium (ppm): 0 Total Sulfate (ppm): 0
Total Chloride(ppm): 0 Total Bicarbonate (ppm): 107


Mash Schedule
Mash Type: Full Mash
Schedule Name: Single Step Infusion (68C/154F)

Step Type Temperature Duration
Rest at 154 degF 60


Mash Notes
1.5 level teaspoons Calcium Carbonate in roughly 4 gallons. Made no other adjustments. 
 
Really need water closer to 170 for mash-in. 
Mash was more like 150F for 20 minutes, then 154F for an hour.


Boil Notes
20 minutes from end, add 1/2tsp yeast nutrient, whirlfloc, hops & chiller. 
 
1.056 pre-boil, overshot by a point. Added some Britta water. 
Wow, way overshot OG. Try less vigorous boil, and watch volumes. Maybe go back to collecting 8 gallons.


Fermentation Notes
Pitched at 72


Packaging Notes


Tasting Notes