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AK-97

146 calories 13.1 g 330 ml
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Beer Stats
Method: Extract
Style: Kölsch
Boil Time: 60 min
Batch Size: 24.5 liters (fermentor volume)
Pre Boil Size: 27 liters
Post Boil Size: 25 liters
Pre Boil Gravity: 1.045 (recipe based estimate)
Post Boil Gravity: 1.048 (recipe based estimate)
Efficiency: 76% (steeping grains only)
Calories: 146 calories (Per 330ml)
Carbs: 13.1 g (Per 330ml)
Created: Thursday October 16th 2025
1.048
1.009
5.1%
26.5
3.7
n/a
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
4.50 kg Coopers - Premium Pilsner Malt4.5 kg Premium Pilsner Malt 37 1.7 87.4%
500 g Voyager Craft Malt - Vienna Schooner500 g Vienna Schooner 36 6.09 9.7%
150 g Gladfield - Sour Grapes Acid Malt150 g Sour Grapes Acid Malt 12.4 2.03 2.9%
5,150 g / $ 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
25 g Pride of Ringwood25 g Pride of Ringwood Hops Pellet 9.75 Boil 60 min 26.49 100%
25 g / $ 0.00
 
Yeast
Fermentis - Safale - German Ale Yeast K-97
Amount:
2 Each
Cost:
Attenuation (avg):
81%
Flocculation:
High
Optimum Temp:
12 - 25 °C
Starter:
No
Fermentation Temp:
-
Pitch Rate:
0.35 (M cells / ml / ° P) 102 B cells required
$ 0.00 Yeast Pitch Rate and Starter Calculator
Priming
CO2 Level: 2.47 Volumes
 
Target Water Profile
Balanced Profile
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
0 0 0 0 0 0
Quick Water Requirements
Water Liters
Heat water added to kettle (equipment estimates 35.5 L) 32.2
Mash volume with grains (equipment estimates 35.5 L) 35.5
Grain absorption losses (steeping) -5.2
Pre boil volume (equipment estimates 30.3 L) 27
Boil off losses -5.7
Hops absorption losses (first wort, boil, aroma) -0.1
Post boil volume (equipment estimates 24.5 L) 25
Going into fermentor (equipment estimates 25 L) 24.5
WARNING: Kettle losses > 2% detected which throw off OG calculation for extract/partial mash recipes in batch target 'fermentor' mode. Solution: Reduce kettle losses, misc losses and hops absorption in equipment profile, OR set batch target to 'kettle' and do a full wort boil. See batch target FAQ.  
Total: 32.2  
Equipment Profile Used: System Default
"AK-97" Kölsch beer recipe by Total Fire Bahn. Extract, ABV 5.13%, IBU 26.49, SRM 3.69, Fermentables: (Premium Pilsner Malt, Vienna Schooner, Sour Grapes Acid Malt) Hops: (Pride of Ringwood)
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  • Last Updated: 2025-10-21 03:01 UTC