Maclays 1909 Oatmalt Stout - GF Version - Beer Recipe - Brewer's Friend

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Maclays 1909 Oatmalt Stout - GF Version

205 calories 20.8 g 12 oz
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Beer Stats
Method: All Grain
Style: Oatmeal Stout
Boil Time: 90 min
Batch Size: 5 gallons (fermentor volume)
Pre Boil Size: 6 gallons
Post Boil Size: 5.49 gallons
Pre Boil Gravity: 1.057 (recipe based estimate)
Post Boil Gravity: 1.062 (recipe based estimate)
Efficiency: 90% (brew house)
Source: Stuart
Hop Utilization: 99.6738%
Calories: 205 calories (Per 12oz)
Carbs: 20.8 g (Per 12oz)
Created: Monday July 18th 2022
1.062
1.015
6.2%
44.7
41.3
3.8
215.46
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
3 lb Grouse Malt House - Pale Millet Malt3 lb Pale Millet Malt $ 4.62 / lb
$ 13.86 		35 2.4 26.7%
2.50 lb Eckert Malting - Biscuit 4L Rice Malt2.5 lb Biscuit 4L Rice Malt $ 4.21 / lb
$ 10.53 		30 4 22.2%
1 lb Eckert Malting - Pitch Black Rice Malt1 lb Pitch Black Rice Malt $ 6.46 / oz
$ 103.43 		28 400 8.9%
1 lb Grouse Malt House - Roasted Buckwheat Malt1 lb Roasted Buckwheat Malt $ 7.00 / lb
$ 7.00 		25 30 8.9%
0.75 lb Grouse Malt House - Caramel Millet 240L0.75 lb Caramel Millet 240L $ 6.72 / oz
$ 80.64 		27 240 6.7%
2 lb Grouse Malt House - US - Grouse Malt House - Malted oats2 lb US - Grouse Malt House - Malted oats $ 0.00 / lb
$ 0.00 		25 2 17.8%
1 lb Lyles - US - Lyles - Golden syrup1 lb US - Lyles - Golden syrup $ 0.00 / lb
$ 0.00 		40 1 8.9%
11.25 lbs / $ 215.46
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
2 oz Yakima Valley Hops - East Kent Golding2 oz East Kent Golding Hops $ 0.00 / oz
$ 0.00 		Pellet 5 Boil 60 min 35.72 80%
0.50 oz Cluster0.5 oz Cluster Hops $ 0.00 / oz
$ 0.00 		Pellet 6.5 Boil 30 min 8.92 20%
2.50 oz / $ 0.00
 
Other Ingredients
Amount Name Cost Type Use Time
0.40 oz Brewers Licorice $ 0.00 / oz
$ 0.00 		Spice Boil 15 min.
6 g Calcium Chloride (dihydrate) $ 0.00 / oz
$ 0.00 		Water Agt Mash 1 hr.
1 g Epsom Salt $ 0.00 / oz
$ 0.00 		Water Agt Mash 1 hr.
4 g Gypsum $ 0.00 / oz
$ 0.00 		Water Agt Mash 1 hr.
3 g Baking Soda $ 0.00 / oz
$ 0.00 		Water Agt Mash 1 hr.
10 ml Ondea Pro $ 0.00 / oz
$ 0.00 		Water Agt Mash 2 hr.
15 ml Ceremix Flex $ 0.00 / oz
$ 0.00 		Water Agt Mash 2 hr.
5 ml Termamyl $ 0.00 / oz
$ 0.00 		Water Agt Mash 2 hr.
 
Yeast
Fermentis - Safale - English Ale Yeast S-04
Amount:
1 Each
Cost:
$ 0.00 / each
$ 0.00
Attenuation (avg):
75%
Flocculation:
High
Optimum Temp:
54 - 77 °F
Starter:
No
Fermentation Temp:
-
Pitch Rate:
0.35 (M cells / ml / ° P) 101 B cells required
$ 0.00 Yeast Pitch Rate and Starter Calculator
Priming
Method: sucrose       Temp: 68 °F       CO2 Level: 2.2 Volumes
 
Target Water Profile
London (Porter, dark ales)
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
100 5 6 60 50 265
4g (1 tsp) Gypsum, 1 g (.25 tsp) Epsom, 6g (1.5 tsp) Calcium Chloride, 3g (.5 tsp) Baking Soda
Mash Chemistry and Brewing Water Calculator
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
5 gal Infusion 145 °F 145 °F 60 min
Temperature 175 °F 175 °F 60 min
2 gal Sparge 175 °F 175 °F 30 min
Starting Mash Thickness: 1.5 qt/lb
Quick Water Requirements
Water Gallons  Quarts
Strike water volume at mash thickness of 1.5 qt/lb 4.22 16.9  
Mash volume with grains 5.12 20.5  
Grain absorption losses -1.41 -5.6  
Remaining sparge water volume (equipment estimates 4.78 g | 19.1 qt) 3.44 13.8  
Mash Lauter Tun losses -0.25 -1  
Pre boil volume (equipment estimates 7.34 g | 29.4 qt) 6 24  
Boil off losses -2.25 -9  
Hops absorption losses (first wort, boil, aroma) -0.09 -0.4  
Post boil Volume (equipment estimates 5 g | 20 qt) 5.49 22  
WARNING: Exceeded batch size - reduce boil size    
Going into fermentor (equipment estimates 5.49 g | 22 qt) 5 20  
Total: 7.66 30.6
Equipment Profile Used: System Default
 
Notes

Adapted from Ron Pattinson's adaptation of a 1909 oat malt stout from Maclay Brewery in Alloa, Scotland.

Oat malt was sourced from dedicated gluten free maltster Grouse (purity protocol oats). For more information on oats in GF brewing (and the gluten free oat debate) see https://zerotolerance.mywikis.wiki/wiki/Oats.

Ron Pattinson's Let's Brew Wednesday recipe: http://barclayperkins.blogspot.com/2012/06/lets-brew-wednesday-1909-maclays.html

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  • Last Updated: 2023-05-30 15:17 UTC