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B&W Kolsch (Mk VIII)

135 calories 14 g 330 ml
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Beer Stats
Method: All Grain
Style: Kölsch
Boil Time: 60 min
Batch Size: 48 liters (fermentor volume)
Pre Boil Size: 60.5 liters
Pre Boil Gravity: 1.035 (recipe based estimate)
Post Boil Gravity: 1.044 (recipe based estimate)
Efficiency: 75% (brew house)
Source: Warren Cook
Calories: 135 calories (Per 330ml)
Carbs: 14 g (Per 330ml)
Created: Saturday October 11th 2025
1.044
1.011
4.4%
15.2
3.6
5.9
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
8 kg German - Pilsner8 kg Pilsner 38 1.6 88.9%
1 kg Munich Malt1 kg Munich Malt 36.8 7.87 11.1%
9 kg / £ 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
85 g Saaz85 g Saaz Hops Leaf/Whole 3 Boil 60 min 13.99 85%
15 g Saaz15 g Saaz Hops Leaf/Whole 3 Boil 15 min 1.23 15%
100 g / £ 0.00
 
Yeast
White Labs - German Ale/ Kölsch Yeast WLP029
Amount:
1 Each
Cost:
Attenuation (avg):
75%
Flocculation:
Medium
Optimum Temp:
18 - 21 °C
Starter:
Yes
Fermentation Temp:
19 °C
Pitch Rate:
0.35 (M cells / ml / ° P) 184 B cells required
£ 0.00 Yeast Pitch Rate and Starter Calculator
Priming
CO2 Level: 2.45 Volumes
 
Target Water Profile
Home (Staffordshire) - borehole from 2024-onwards
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
0 0 0 0 0 0
water was stripped 80% lactic acid to 0ppm CaCO3 (30ml of lactic acid in 70 litres of brewday water)
Mash Chemistry and Brewing Water Calculator
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
22.5 L RIMS recirculation mash Infusion 76 °C 67 °C 60 min
Starting Mash Thickness: 2.5 L/kg
Starting Grain Temp: 14 °C
Quick Water Requirements
Water Liters
WARNING: Boil kettle capacity (45.4 L) exceeded. Volume required: 54.2 L. Suggest reducing initial water volume to 45.4 L and adding 8.8 L sparge/top-off.  
Strike water volume at mash thickness of 2.5 L/kg 22.5
Mash volume with grains 28.4
Grain absorption losses -9
Remaining sparge water volume (equipment estimates 41.6 L) 47.9
Mash Lauter Tun losses -0.9
Pre boil volume (equipment estimates 54.2 L) 60.5
Boil off losses -5.7
Hops absorption losses (first wort, boil, aroma) -0.5
Post boil Volume 48
Going into fermentor 48
Total: 70.4  
Equipment Profile Used: System Default
 
Notes

2nd generation of Kolsch yeast, 1.2 litres harvested from first Kolsch brew.
Slightly different recipe for comparison to previous brew - using Saaz hops instead of Hersbrucker to give an IBU of approx 15.

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  • Last Updated: 2025-10-12 07:58 UTC