Iris Oatmeal Stout Beer Recipe | All Grain Oatmeal Stout | Brewer's Friend
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Iris Oatmeal Stout

228 calories 27.1 g 12 oz
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Beer Stats
Method: All Grain
Style: Oatmeal Stout
Boil Time: 60 min
Batch Size: 5 gallons (fermentor volume)
Pre Boil Size: 8.39 gallons
Post Boil Size: 6.31 gallons
Pre Boil Gravity: 1.051 (recipe based estimate)
Post Boil Gravity: 1.068 (recipe based estimate)
Efficiency: 70% (brew house)
Calories: 228 calories (Per 12oz)
Carbs: 27.1 g (Per 12oz)
Created: Saturday October 25th 2025
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1.068
1.022
6.0%
31.6
40.5
5.4
n/a
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Fermentables
Amount Fermentable Cost PPG °L Bill %
8.50 lb United Kingdom - Maris Otter Pale8.5 lb Maris Otter Pale 38 3.75 58.2%
2 lb Flaked Oats2 lb Flaked Oats 33 2.2 13.7%
0.75 lb American - Chocolate0.75 lb Chocolate 29 350 5.1%
0.75 lb American - Victory0.75 lb Victory 34 28 5.1%
0.50 lb American - Black Barley0.5 lb Black Barley 27 530 3.4%
0.50 lb Caramel / Crystal 60L0.5 lb Caramel / Crystal 60L 34 60 3.4%
1 lb Rice Hulls1 lb Rice Hulls 0 0 6.8%
0.60 lb Flaked Barley0.6 lb Flaked Barley 32 2.2 4.1%
14.60 lbs / $ 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
1.50 oz East Kent Goldings1.5 oz East Kent Goldings Hops Pellet 5 Boil 60 min 28.21 75%
0.50 oz East Kent Goldings0.5 oz East Kent Goldings Hops Pellet 5 Boil 10 min 3.41 25%
2 oz / $ 0.00
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
5.34375 gal Strike 161 °F 154 °F 60 min
5.08 gal Sparge 168 °F 168 °F 15 min
Starting Mash Thickness: 1.5 qt/lb
Starting Grain Temp: 68 °F
 
Other Ingredients
Amount Name Cost Type Use Time
7 g Calcium Chloride (dihydrate) Water Agt Mash 1 hr.
2 g Gypsum Water Agt Mash 1 hr.
3.50 ml Lactic acid Water Agt Mash 1 hr.
 
Yeast
White Labs - English Ale Yeast WLP002
Amount:
1 Each
Cost:
Attenuation (avg):
66.5%
Flocculation:
Very High
Optimum Temp:
65 - 68 °F
Starter:
Yes
Fermentation Temp:
68 °F
Pitch Rate:
0.5 (M cells / ml / ° P) 157 B cells required
$ 0.00 Yeast Pitch Rate and Starter Calculator
Priming
CO2 Level: 1.65 Volumes
 
Target Water Profile
London (Porter, dark ales)
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
100 5 35 60 50 265
Mash Chemistry and Brewing Water Calculator
"Iris Oatmeal Stout" Oatmeal Stout beer recipe by BrewBeerSmokeMeat. All Grain, ABV 5.98%, IBU 31.62, SRM 40.53, Fermentables: (Maris Otter Pale, Flaked Oats, Chocolate, Victory, Black Barley, Caramel / Crystal 60L, Rice Hulls, Flaked Barley) Hops: (East Kent Goldings) Other: (Calcium Chloride (dihydrate), Gypsum, Lactic acid)
Recipe Picture
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  • Public: Yup, Shared
  • Last Updated: 2025-10-25 19:09 UTC
NEW Water Requirements:
Iris Oatmeal Stout
Equipment Profile Used

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Iris Oatmeal Stout
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Recipe Cost $ (USD)
Recipe costs can be adjusted by changing the batch size. They won't be saved but will give you an idea of costs if your final yield was different.
Gallons
Cost $ Cost %
Fermentables $
Steeping Grains
(Extract Only)		 $
Hops $
Yeast $
Other $
Cost Per Barrel $ 0.00
Cost Per Pint $ 0.00
Total Cost $ 0.00
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