Brewer's Friend

Print

Marston's Oyster Stout klōn

155 calories 15.5 g 12 oz
brewer logo
Beer Stats
Method: All Grain
Style: Irish Stout
Boil Time: 60 min
Batch Size: 6 gallons (fermentor volume)
Pre Boil Size: 7 gallons
Post Boil Size: 6 gallons
Pre Boil Gravity: 1.040 (recipe based estimate)
Post Boil Gravity: 1.047 (recipe based estimate)
Efficiency: 80% (brew house)
Source: Alchemist Prime
Calories: 155 calories (Per 12oz)
Carbs: 15.5 g (Per 12oz)
Created: Friday April 10th 2026
Similar Recipes

Guinness Stout Clone

by British Ale Dude

OG: 1.054 FG: 1.012 ABV: 5.5% IBU: 35

1.047
1.011
4.7%
33.7
20.8
5.9
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
8.50 lb Briess - Brewers Malt 2-Row8.5 lb Brewers Malt 2-Row 37 1.8 88.3%
6 oz Bairds - British Crystal 50/60L6 oz British Crystal 50/60L 35 55 3.9%
6 oz Briess - Roasted Barley6 oz Roasted Barley 33.1 300 3.9%
6 oz Briess - Chocolate6 oz Chocolate 25 350 3.9%
154 oz / $ 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
1 oz East Kent Goldings1 oz East Kent Goldings Hops Pellet 5 Boil 45 min 15.91 40%
1 oz Fuggles1 oz Fuggles Hops Pellet 4.5 Boil 45 min 14.32 40%
0.25 oz Styrian Goldings0.25 oz Styrian Goldings Hops Pellet 5.5 Boil 5 min 0.95 10%
0.25 oz Hallertau Hersbrucker0.25 oz Hallertau Hersbrucker Hops Pellet 14.5 Boil 5 min 2.51 10%
2.50 oz / $ 0.00
 
Other Ingredients
Amount Name Cost Type Use Time
13.50 g Chalk Water Agt Mash 1 hr.
1 g Calcium Chloride (dihydrate) Water Agt Mash 1 hr.
1 g Epsom Salt Water Agt Mash 1 hr.
2.30 g Gypsum Water Agt Mash 1 hr.
2 g Yeast Nutrient Water Agt Boil 5 min.
1 g Whirlfloc tablet Water Agt Boil 5 min.
 
Yeast
Fermentis - Safale - English Ale Yeast S-04
Amount:
1 Each
Cost:
Attenuation (avg):
75%
Flocculation:
High
Optimum Temp:
54 - 77 °F
Starter:
No
Fermentation Temp:
-
Pitch Rate:
0.35 (M cells / ml / ° P) 93 B cells required
$ 0.00 Yeast Pitch Rate and Starter Calculator
Priming
Method: co2       Amount: 6.72 psi       Temp: 35 °F       CO2 Level: 2.2 Volumes
 
Target Water Profile
Dublin (Dry Stout)
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
110 4 12 19 53 280
Mash Chemistry and Brewing Water Calculator
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
3.8 gal Strike 164 °F 152 °F 60 min
4.47 gal Sparge 168 °F 168 °F 15 min
Starting Mash Thickness: 1.5 qt/lb
Starting Grain Temp: 65 °F
Quick Water Requirements
Water Gallons  Quarts
Strike water volume at mash thickness of 1.5 qt/lb 3.61 14.4  
Mash volume with grains 4.38 17.5  
Grain absorption losses -1.2 -4.8  
Remaining sparge water volume (equipment estimates 5.44 g | 21.8 qt) 4.84 19.4  
Mash Lauter Tun losses -0.25 -1  
Pre boil volume (equipment estimates 7.59 g | 30.4 qt) 7 28  
Boil off losses -1.5 -6  
Hops absorption losses (first wort, boil, aroma) -0.09 -0.4  
Post boil Volume 6 24  
Going into fermentor 6 24  
Total: 8.45 33.8
Equipment Profile Used: System Default
"Marston's Oyster Stout klōn" Irish Stout beer recipe by Alchemist Prime. All Grain, ABV 4.67%, IBU 33.69, SRM 20.81, Fermentables: (Brewers Malt 2-Row, British Crystal 50/60L, Roasted Barley, Chocolate) Hops: (East Kent Goldings, Fuggles, Styrian Goldings, Hallertau Hersbrucker) Other: (Chalk, Calcium Chloride (dihydrate), Epsom Salt, Gypsum, Yeast Nutrient, Whirlfloc tablet)
Last Updated and Sharing
 
158
Views
1
Brews
Recipe QR Code
  • Public: Yup, Shared
  • Last Updated: 2026-04-10 14:11 UTC