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S/S Martha

201 calories 19.2 g 12 L
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Beer Stats
Method: All Grain
Style: International Pale Lager
Boil Time: 60 min
Batch Size: 38 liters (fermentor volume)
Pre Boil Size: 28.5 liters
Pre Boil Gravity: 1.082 (recipe based estimate)
Post Boil Gravity: 1.061 (recipe based estimate)
Efficiency: 70% (brew house)
Source: Grubbe
Calories: 201 calories (Per 12L)
Carbs: 19.2 g (Per 12L)
Created: Saturday June 21st 2025
1.061
1.013
6.3%
29.2
15.4
n/a
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
1 kg Briess - Brewers Oat Flakes / Flaked oats1 kg Brewers Oat Flakes / Flaked oats 32.2 2.5 9.1%
6 kg Belgian - Pilsner6 kg Pilsner 37 1.6 54.5%
2 kg American - Wheat2 kg Wheat 38 1.8 18.2%
1 kg Special B1 kg Special B 34 115 9.1%
1 kg Crisp Malting - Cara Gold malt1 kg Cara Gold malt 34 6 9.1%
11 kg / kr 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
100 g Artisan - Cascade100 g Cascade Hops Pellet 5.8 Boil at 100 °C 60 min 29.15 100%
100 g / kr 0.00
 
Other Ingredients
Amount Name Cost Type Use Time
10 g irish moss Water Agt Mash 0 min.
 
Yeast
Mangrove Jack - Bohemian Lager Yeast M84
Amount:
2 Each
Cost:
Attenuation (avg):
78%
Flocculation:
High
Optimum Temp:
10 - 15 °C
Starter:
No
Fermentation Temp:
-
Pitch Rate:
0.35 (M cells / ml / ° P) 199 B cells required
kr 0.00 Yeast Pitch Rate and Starter Calculator
Priming
CO2 Level: 2.25 Volumes
 
Target Water Profile
Balanced Profile
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
0 0 0 0 0 0
Mash Chemistry and Brewing Water Calculator
Quick Water Requirements
Water Liters
WARNING: Mash tun capacity exceeded. Volume required: 47.41 L. Suggest reducing strike water volume to 38.14 L and adding 2.01 L sparge/top-off. 40.2
Strike water volume at mash thickness of 3.7 L/kg 40.2
Mash volume with grains 47.4
Grain absorption losses -11
Remaining sparge water volume (equipment estimates 16 L) 0.3
Mash Lauter Tun losses -0.9
Pre boil volume (equipment estimates 44.2 L) 28.5
Boil off losses -5.7
Hops absorption losses (first wort, boil, aroma) -0.5
Post boil Volume 38
Going into fermentor 38
Total: 40.4  
Equipment Profile Used: System Default
"S/S Martha" International Pale Lager beer recipe by Grubbe. All Grain, ABV 6.27%, IBU 29.15, SRM 15.39, Fermentables: (Brewers Oat Flakes / Flaked oats, Pilsner, Wheat, Special B, Cara Gold malt) Hops: (Cascade) Other: (irish moss)
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  • Last Updated: 2025-06-21 08:31 UTC