BYO Oatmeal Stout (orig) Beer Recipe | All Grain Oatmeal Stout | Brewer's Friend
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BYO Oatmeal Stout (orig)

172 calories 18.5 g 12 oz
Beer Stats
Method: All Grain
Style: Oatmeal Stout
Boil Time: 60 min
Batch Size: 5 gallons (fermentor volume)
Pre Boil Size: 6.5 gallons
Pre Boil Gravity: 1.040 (recipe based estimate)
Efficiency: 64% (brew house)
Source: Stephen Galante, BYO October 1997
Calories: 172 calories (Per 12oz)
Carbs: 18.5 g (Per 12oz)
URL: https://byo.com/hops/item/1189-oatmeal-stout-style
Created: Sunday August 27th 2017
1.052
1.014
5.0%
32.1
38.9
n/a
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
8 lb United Kingdom - Maris Otter Pale8 lb Maris Otter Pale 38 3.75 71.9%
1 lb United Kingdom - Crystal 60L1 lb Crystal 60L 34 60 9%
18 oz Flaked Oats18 oz Flaked Oats 33 2.2 10.1%
0.50 lb United Kingdom - Chocolate0.5 lb Chocolate 34 425 4.5%
0.50 lb United Kingdom - Roasted Barley0.5 lb Roasted Barley 29 550 4.5%
11.12 lbs / 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
2 oz Fuggles2 oz Fuggles Hops Pellet 4.2 Boil 45 min 32.05 100%
2 oz / 0.00
 
Other Ingredients
Amount Name Cost Type Use Time
0.50 tsp Irish moss Fining Boil 15 min.
 
Yeast
Wyeast - Irish Ale 1084
Amount:
1 Each
Cost:
Attenuation (avg):
73%
Flocculation:
Medium
Optimum Temp:
62 - 72 °F
Starter:
No
0.00 Yeast Pitch Rate and Starter Calculator
 
Notes

Oatmeal Stout
5 gallons, all-grain
OG = 1.052 IBU = 35

The recipe specifies about 10 percent oats, for which a single-step infusion mash will suffice.

Ingredients:
8 lbs. pale two-row English ale malt
1 lb. crystal malt, 60° Lovibond
18 oz. oatmeal (quick)
0.5 lb. chocolate malt
0.5 lb. roasted barley
1/2 tsp. Irish moss
2 oz. Fuggles hops for boiling (4.2% alpha acid), for 45 min.
1 pack Wyeast 1084, Irish ale yeast
Step by Step:
Prepare a yeast starter a day or two before you start your brewing. Mix the crushed grains well in a clean, dry bucket. Heat 11 qts. of water to 174° F. Mash in slowly in stages, as described below. The temperature of the mash should be between 150° and 158° F. Within this range, higher levels give a less fermentable wort and a more full-bodied beer. Lower temperatures give a more fermentable wort. Acidify 5 gals. of sparge water to a pH of 5.7 using lactic acid. Homebrewing shops sell solutions of 88 percent lactic acid concentration. A stock solution of the acid may be prepared by mixing 2 tsp. into 3 cups of water. This stock solution can be stored, and using about 1/2 cup will reduce the pH of 5 gals. of tap water to nearly 5.7. Be sure to verify this using pH papers or some other means. Acidification prevents excessive extraction of husk tannins. Heat the acidified sparge water to a temperature at or just below 170° F. Maintain the mash vessel at temperature for at least 1 hour. Mash out, raising the temperature of the mash to 168° F. To begin the sparge, slowly drain and collect 1/2 gal. wort from the lauter tun, then gently pour this back on top of the grain bed. Repeat twice more; this establishes the grain bed and produces relatively clear initial runnings of wort by filtering out any fine grain particles within the bed. Begin the sparge, maintaining the sparge water at or just below 170° F. Typically sparging for this recipes takes 45 min. to 1 hour. More time is needed if the oat content is increased. Collect 6.5 gals. of wort.

Boil the wort vigorously for 15 min. Add hops and boil 30 more min. Add Irish moss and boil 15 more minutes. Total boil is 60 min. Cool the wort to room temperature within 30 min. of the end of the boil. Siphon the wort off the trub into a sanitized fermenter. Aerate the wort for 15 min. Pitch the yeast starter. Seal the fermenter with an air lock, and let the fermentation proceed until complete.

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  • Public: Yup, Shared
  • Last Updated: 2017-08-27 17:22 UTC
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