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Pub 125 - Czech Dark Lager Abysswalker

191 calories 15.5 g 12 oz
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Beer Stats
Method: All Grain
Style: Czech Dark Lager
Boil Time: 90 min
Batch Size: 240 gallons (ending kettle volume)
Pre Boil Size: 270 gallons
Pre Boil Gravity: 12.9 °P (recipe based estimate)
Efficiency: 68% (ending kettle)
Source: Mat deGeus
Calories: 191 calories (Per 12oz)
Carbs: 15.5 g (Per 12oz)
Created: Thursday July 24th 2025
14.4 °P
2.2 °P
6.6%
29.8
23.8
5.3
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
27.50 lb Bestmalz - BEST Melanoidin27.5 lb BEST Melanoidin 34.5 27 4.2%
55 lb Carolina Malt House - Dark Munich Malt55 lb Dark Munich Malt 34 17 8.3%
27.50 lb Bestmalz - BEST Chocolate27.5 lb BEST Chocolate - (late boil kettle addition) 34.5 337.82 4.2%
275 lb tchecomalt - CZ - tchecomalt - Tchecomalt - Floor Malted Pilsen275 lb CZ - tchecomalt - Tchecomalt - Floor Malted Pilsen 34 1.9 41.7%
275 lb Tchecomalt - US - Tchecomalt - Munich275 lb US - Tchecomalt - Munich 31 7.8 41.7%
660 lbs / $ 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
18 oz Magnum18 oz Magnum Hops Pellet 15 Boil 90 min 22.44 40.9%
16 oz Hallertau Blanc16 oz Hallertau Blanc Hops Pellet 9.5 Boil 15 min 5.86 36.4%
10 oz Hallertau Blanc10 oz Hallertau Blanc Hops Pellet 9.5 Boil 5 min 1.47 22.7%
44 oz / $ 0.00
 
Other Ingredients
Amount Name Cost Type Use Time
600 ml Lactic acid Water Agt Mash 0 min.
150 g Gypsum Water Agt Mash 0 min.
75 g Calcium Chloride (anhydrous) Water Agt Mash 0 min.
25 g Table Salt Water Agt Mash 0 min.
 
Yeast
Fermentis - Saflager - German Lager Yeast W-34/70
Amount:
1 Each
Cost:
Attenuation (avg):
83%
Flocculation:
High
Optimum Temp:
48 - 72 °F
Starter:
No
Fermentation Temp:
-
Pitch Rate:
0.35 (M cells / ml / ° P) 4586 B cells required
$ 0.00 Yeast Pitch Rate and Starter Calculator
Priming
CO2 Level: 2.25 Volumes
 
Target Water Profile
San Antonio, TX (SAWS) 3/1/2018
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
0 0 0 0 0 0
Mash Chemistry and Brewing Water Calculator
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
233 gal Strike 163 °F 150 °F 60 min
158 gal Sparge -- -- --
Starting Mash Thickness: 1.5 qt/lb
Starting Grain Temp: 70 °F
Quick Water Requirements
Water Gallons  Quarts
WARNING: Boil kettle capacity (12 gal | 48 qt) exceeded. Volume required: 243.9 gal (975.6 qt). Suggest reducing initial water volume to 12 gal (48 qt) and adding 231.9 gal (927.6 qt) sparge/top-off.    
WARNING: Mash tun capacity exceeded. Volume required: 300.3 gal (1201.2 qt) 247.5 990  
Strike water volume at mash thickness of 1.5 qt/lb 247.5 990  
Mash volume with grains 300.3 1201.2  
Grain absorption losses -82.5 -330  
Remaining sparge water volume 105.25 421  
Mash Lauter Tun losses -0.25 -1  
Pre boil volume (equipment estimates 243.9 g | 975.6 qt) 270 1080  
Boil off losses -2.25 -9  
Hops absorption losses (first wort, boil, aroma) -1.65 -6.6  
Post boil volume (equipment estimates 266.1 g | 1064.4 qt) 240 960  
Estimated amount in fermentor 240 960  
Total: 352.75 1411
Equipment Profile Used: System Default
"Pub 125 - Czech Dark Lager Abysswalker" Czech Dark Lager beer recipe by Mat deGeus. All Grain, ABV 6.56%, IBU 29.77, SRM 23.83, Fermentables: (BEST Melanoidin, Dark Munich Malt, BEST Chocolate, CZ - tchecomalt - Tchecomalt - Floor Malted Pilsen, US - Tchecomalt - Munich) Hops: (Magnum, Hallertau Blanc) Other: (Lactic acid, Gypsum, Calcium Chloride (anhydrous), Table Salt)
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  • Last Updated: 2025-08-11 21:24 UTC