Oatmeal Stout - Beer Recipe - Brewer's Friend

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Oatmeal Stout

182 calories 19 g 12 oz
Beer Stats
Method: All Grain
Style: Oatmeal Stout
Boil Time: 65 min
Batch Size: 4.2 gallons (fermentor volume)
Pre Boil Size: 7 gallons
Post Boil Size: 5.5 gallons
Pre Boil Gravity: 1.043 (recipe based estimate)
Post Boil Gravity: 1.055 (recipe based estimate)
Efficiency: 66% (brew house)
Rating:
4.00 (1 Review)

Calories: 182 calories (Per 12oz)
Carbs: 19 g (Per 12oz)
Created: Friday May 15th 2020
1.055
1.014
5.5%
38.3
35.3
5.8
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
5.60 lb United Kingdom - Maris Otter Pale5.6 lb Maris Otter Pale 38 3.75 57.1%
1.60 lb Rolled Oats1.6 lb Rolled Oats 33 2.2 16.3%
0.80 lb American - Caramel / Crystal 40L0.8 lb Caramel / Crystal 40L 34 40 8.2%
0.40 lb United Kingdom - Roasted Barley0.4 lb Roasted Barley 29 550 4.1%
0.80 lb American - Victory0.8 lb Victory 34 28 8.2%
0.60 lb Simpsons - Chocolate Malt0.6 lb Chocolate Malt 31.7 444 6.1%
9.80 lbs / 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
1.60 oz East Kent Goldings1.6 oz East Kent Goldings Hops Pellet 5 Boil 38 min 33.04 66.7%
0.80 oz Fuggles0.8 oz Fuggles Hops Pellet 4.5 Boil 8 min 5.21 33.3%
2.40 oz / 0.00
 
Other Ingredients
Amount Name Cost Type Use Time
1.50 tsp Chalk Water Agt Mash 0 min.
0.25 tsp Baking Soda Water Agt Mash 0 min.
0.25 tsp Gypsum Water Agt Mash 0 min.
0.33 tsp Calcium Chloride (anhydrous) Water Agt Mash 0 min.
 
Yeast
Wyeast - London Ale III 1318
Amount:
1 Each
Cost:
Attenuation (avg):
73%
Flocculation:
High
Optimum Temp:
64 - 74 °F
Starter:
No
Fermentation Temp:
-
Pitch Rate:
0.35 (M cells / ml / ° P) 76 B cells required
0.00 Yeast Pitch Rate and Starter Calculator
Priming
CO2 Level: 2.75 Volumes
 
Target Water Profile
London (Porter, dark ales)
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
84.9 9 27 55.1 41 137.1
Mash Chemistry and Brewing Water Calculator
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
16 qt Strike 170 °F 152 °F 60 min
1.25 gal Strike 212 °F 168 °F 10 min
1 gal Batch Sparge 150 °F 150 °F --
Starting Mash Thickness: 1.25 qt/lb
Starting Grain Temp: 68 °F
Quick Water Requirements
Water Gallons  Quarts
Strike water volume at mash thickness of 1.25 qt/lb 3.06 12.3  
Mash volume with grains 3.85 15.4  
Grain absorption losses -1.23 -4.9  
Remaining sparge water volume (equipment estimates 4.33 g | 17.3 qt) 5.41 21.7  
Mash Lauter Tun losses -0.25 -1  
Pre boil volume (equipment estimates 5.92 g | 23.7 qt) 7 28  
Boil off losses -1.63 -6.5  
Hops absorption losses (first wort, boil, aroma) -0.09 -0.4  
Post boil Volume (equipment estimates 4.2 g | 16.8 qt) 5.5 22  
WARNING: Exceeded batch size - reduce boil size    
Going into fermentor (equipment estimates 5.5 g | 22 qt) 4.2 16.8  
Total: 8.48 33.9
Equipment Profile Used: System Default
 
Notes

Add whirlfloc tablet to get clearer beer. While this is an oatmeal stout, we might not want the haze in it- just the oatmeal mouth feel.

Mash at 98-110 degrees for 25 minutes (helps the beta-glucanase enzymes break down the beta-glucans), then bring up to 153-155 range for 50 minutes. Mash out at 168+

8 QTs of 115-116 degree water should be good for first mash. (Target 104-105 temp) (Start around 6-7 then adjust to hit target)

Then 11 qts of 166-167 degree water to bring it up.
(Target 154-155). (Maybe start with 10 qts then if needed can go up to 12 total quarts. Boil or add cold water to adjust)

Be sure to have 5.5 gallons of beer in the fermenter

Ferment for 2 weeks in the stainless steel then move to the glass containers versus plastic bucket.

Make sure to have 5.5 gallons of beer available to that these can be filled up pretty close to the top. If there is a tiny bit left over, fill up a bottle or two (For these two bottles, they will need a tiny bit of sugar to carbonate)

Used 3.25 oz of corn sugar for the 80% size batch


Notes from brewing the first time:

When brewing, I hit 102 or so for the first step of mashing, kept it there for 20 minutes. I was around 150 or 151 for step 2. Kept it there for 45, for a total of 65 minutes of mashing.

Also did a 65 minute boil versus 60.

This didn't end up overly caramely. It wasn't too sweet, but had a tiny bit of sweetness. Below a 40L would make it sweeter, which would be okay- 60L or 80L might make it too roasty. I'm thinking 20L-40L is a solid place.

In time, I might consider slightly increasing the Victory to maybe around 10% for a slightly more "bready" flavor. Overall, though, I am very pleased. This came out well.

If this weren't cut back to 80%, the original totals were:
7lbs Maris Otter, 2lbs Oatmeal, 1 Lb Victory, 1lb 40L, .75lb Chocolate Malt, .5 Lb Roasted Barley, 2oz Golding, 1oz Fuggles.

This benefitted from a long bottle conditioning to allow it to round out. It truly needed 1 month in the bottle. Good roastiness- some coffee flavor but not too much.

It came out nice and dry like I would want- not too sweet. Keeping it between 150-152 for mashing is a good move going forward. Outside of small tweaks, this is really good as is.

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  • Last Updated: 2020-12-28 23:21 UTC