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Murphy's Iris Stout

138 calories 14 g 12 oz
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Beer Stats
Method: All Grain
Style: Irish Stout
Boil Time: 60 min
Batch Size: 7 gallons (fermentor volume)
Pre Boil Size: 9 gallons
Pre Boil Gravity: 1.033 (recipe based estimate)
Post Boil Gravity: 1.042 (recipe based estimate)
Efficiency: 80% (brew house)
Source: Chris Daily
Calories: 138 calories (Per 12oz)
Carbs: 14 g (Per 12oz)
Created: Sunday April 6th 2025
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OG: 1.043 FG: 1.011 ABV: 4.2% IBU: 39

1.042
1.010
4.1%
43.5
30.2
n/a
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
7.38 lb Weyermann - Isaria 19247.38 lb Isaria 1924 35.8 3.3 71.4%
0.65 lb American - Roasted Barley0.65 lb Roasted Barley 33 300 6.3%
0.52 lb United Kingdom - Chocolate0.52 lb Chocolate 34 425 5%
1 lb Flaked Oats1 lb Flaked Oats 33 2.2 9.7%
0.35 lb Simpsons - Crystal Dark Medium (78.55 L)0.35 lb Crystal Dark Medium (78.55 L) 33 78.55 3.4%
0.25 lb Turbinado0.25 lb Turbinado - (late boil kettle addition) 44 10 2.4%
0.18 lb American - Black Malt0.18 lb Black Malt 28 500 1.7%
10.33 lbs / $ 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
1.04 oz Magnum1.04 oz Magnum Hops Pellet 12.1 Boil 60 min 41.5 79.7%
0.27 oz East Kent Goldings0.265 oz East Kent Goldings Hops Pellet 6.6 Boil 20 min 1.96 20.3%
1.30 oz / $ 0.00
 
Yeast
Wyeast - Irish Ale 1084
Amount:
1.40 Each
Cost:
Attenuation (avg):
73%
Flocculation:
Medium
Optimum Temp:
62 - 72 °F
Starter:
Yes
Fermentation Temp:
-
Pitch Rate:
0.35 (M cells / ml / ° P) 97 B cells required
$ 0.00 Yeast Pitch Rate and Starter Calculator
Priming
CO2 Level: 2.25 Volumes
 
Target Water Profile
Balanced Profile
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
60 5 30 92 52 0
Mash Chemistry and Brewing Water Calculator
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
7 gal 131 °F 131 °F 20 min
7 gal 145 °F 145 °F 20 min
7 gal 152 °F 152 °F 60 min
7 gal 168 °F 168 °F 20 min
Starting Mash Thickness: 1.8 qt/lb
Quick Water Requirements
Water Gallons  Quarts
Strike water volume at mash thickness of 1.8 qt/lb 4.54 18.1  
Mash volume with grains 5.34 21.4  
Grain absorption losses -1.26 -5  
Remaining sparge water volume (equipment estimates 5.5 g | 22 qt) 5.97 23.9  
Mash Lauter Tun losses -0.25 -1  
Pre boil volume (equipment estimates 8.53 g | 34.1 qt) 9 36  
Volume increase from sugar/extract (late additions) 0.02 0.1  
Boil off losses -1.5 -6  
Hops absorption losses (first wort, boil, aroma) -0.05 -0.2  
Post boil Volume 7 28  
Going into fermentor 7 28  
Total: 10.51 42
Equipment Profile Used: System Default
 
Notes

Things changed from original:
2-row instead of Isaria
Uk crystal 55L instead of Crystal Dark
added 1 lb of flaked oats
added mash step 145 degrees for 20 min

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  • Last Updated: 2026-06-14 12:50 UTC