Oatmeal Stout Beer Recipe | BIAB Oatmeal Stout by Duke Lazer | Brewer's Friend
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Oatmeal Stout

187 calories 17.8 g 12 oz
Beer Stats
Method: BIAB
Style: Oatmeal Stout
Boil Time: 30 min
Batch Size: 1 gallons (fermentor volume)
Pre Boil Size: 1.4 gallons
Post Boil Size: 1 gallons
Pre Boil Gravity: 1.041 (recipe based estimate)
Post Boil Gravity: 1.057 (recipe based estimate)
Efficiency: 60% (brew house)
Calories: 187 calories (Per 12oz)
Carbs: 17.8 g (Per 12oz)
Created: Monday July 28th 2025
1.057
1.012
5.9%
25.2
32.0
5.2
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
27.60 oz United Kingdom - Maris Otter Pale27.6 oz Maris Otter Pale 38 3.75 66.3%
3.80 oz Flaked Oats3.8 oz Flaked Oats 33 2.2 9.1%
2.90 oz American - Caramel / Crystal 40L2.9 oz Caramel / Crystal 40L 34 40 7%
2.90 oz Crisp Malting - Pale Chocolate2.9 oz Pale Chocolate 32.7 220 7%
2.90 oz Briess - Victory Malt2.9 oz Victory Malt 34.5 28 7%
1.50 oz American - Roasted Barley1.5 oz Roasted Barley 33 300 3.6%
41.60 oz / 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
10 g Willamette10 g Willamette Hops Pellet 4.5 Boil 30 min 25.22 100%
10 g / 0.00
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
1.6 gal Infusion 162 °F 155 °F 30 min
 
Other Ingredients
Amount Name Cost Type Use Time
2.81 g Chalk Water Agt Mash 1 hr.
0.94 g Calcium Chloride (dihydrate) Water Agt Mash 1 hr.
0.62 g Epsom Salt Water Agt Mash 1 hr.
0.39 g Gypsum Water Agt Mash 1 hr.
1.11 g Baking Soda Water Agt Mash 1 hr.
3.20 ml Lactic acid Water Agt Mash 10 min.
 
Yeast
Lallemand - LALBREW® NOTTINGHAM HIGH PERFORMANCE ALE YEAST
Amount:
1 Each
Cost:
Attenuation (avg):
80%
Flocculation:
High
Optimum Temp:
50 - 72 °F
Starter:
No
Fermentation Temp:
68 °F
Pitch Rate:
0.35 (M cells / ml / ° P) 19 B cells required
0.00 Yeast Pitch Rate and Starter Calculator
Priming
CO2 Level: 2.75 Volumes
 
Target Water Profile
RO
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
150 10 50 75 75 412.686
Water is Balanced 30 SRM
Mash Chemistry and Brewing Water Calculator
"Oatmeal Stout" Oatmeal Stout beer recipe by Duke Lazer. BIAB, ABV 5.86%, IBU 25.22, SRM 32.01, Fermentables: (Maris Otter Pale, Flaked Oats, Caramel / Crystal 40L, Pale Chocolate, Victory Malt, Roasted Barley) Hops: (Willamette) Other: (Chalk, Calcium Chloride (dihydrate), Epsom Salt, Gypsum, Baking Soda, Lactic acid)
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  • Public: Yup, Shared
  • Last Updated: 2025-10-05 23:58 UTC
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