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Course Maintenance

149 calories 14 g 16 oz
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Beer Stats
Method: BIAB
Style: Kölsch
Boil Time: 90 min
Batch Size: 5.5 gallons (fermentor volume)
Pre Boil Size: 6.95 gallons
Post Boil Size: 5.77 gallons
Pre Boil Gravity: 9.5 °P (recipe based estimate)
Post Boil Gravity: 11.3 °P (recipe based estimate)
Efficiency: 72% (brew house)
Calories: 149 calories (Per 16oz)
Carbs: 14 g (Per 16oz)
Created: Thursday December 26th 2024
11.3 °P
2.4 °P
4.8%
27.3
3.8
5.3
10.51
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
6.50 lb Rahr - Old World Pilsner6.5 lb Old World Pilsner 36.3 1.75 68.4%
1 lb Viking - Wheat Malt1 lb Wheat Malt 38 2.5 10.5%
2 lb Viking - Vienna2 lb Vienna $ 1.70 / lb
$ 3.40 		37 3.6 21.1%
9.50 lbs / $ 3.40
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
0.50 oz adeena0.5 oz adeena Hops $ 0.31 / oz
$ 0.16 		Pellet 5.4 First Wort 60 min 12.25 25%
0.50 oz adeena0.5 oz adeena Hops $ 0.31 / oz
$ 0.16 		Pellet 5.4 Boil 30 min 8 25%
0.50 oz adeena0.5 oz adeena Hops $ 0.31 / oz
$ 0.16 		Pellet 5.4 Boil 15 min 5.16 25%
0.50 oz adeena0.5 oz adeena Hops $ 0.31 / oz
$ 0.16 		Pellet 5.4 Whirlpool 10 min 1.84 25%
2 oz / $ 0.62
 
Other Ingredients
Amount Name Cost Type Use Time
4 g Calcium Chloride (anhydrous) Water Agt Mash 1 hr.
2.16 g Citric acid Water Agt Mash 1 hr.
3 g Epsom Salt Water Agt Mash 1 hr.
5 g Gypsum Water Agt Mash 1 hr.
1 g Salt Water Agt Mash 1 hr.
 
Yeast
Fermentis - Safale - German Ale Yeast K-97
Amount:
1 Each
Cost:
$ 6.49 / each
$ 6.49
Attenuation (avg):
81%
Flocculation:
High
Optimum Temp:
54 - 77 °F
Starter:
No
Fermentation Temp:
62 °F
Pitch Rate:
0.75 (M cells / ml / ° P) 177 B cells required
$ 6.49 Yeast Pitch Rate and Starter Calculator
Priming
Method: co2       Amount: 24.31 psi       Temp: 55 °F       CO2 Level: 2.8 Volumes
 
Target Water Profile
Kolsch
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
90 10 15 50 70 0
Mash Chemistry and Brewing Water Calculator
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
14.25 qt Strike 150 °F 145 °F 30 min
2.3 qt Temperature 212 °F 155 °F 30 min
3.6 gal Sparge 180 °F 170 °F --
Quick Water Requirements
Water Gallons  Quarts
Strike water volume (equipment estimates 9.26 g | 37.1 qt) 8.39 33.6  
Mash volume with grains (equipment estimates 10.02 g | 40.1 qt) 9.15 36.6  
Grain absorption losses -1.19 -4.8  
Mash Lauter Tun losses -0.25 -1  
Pre boil volume (equipment estimates 7.83 g | 31.3 qt) 6.95 27.8  
Boil off losses -2.25 -9  
Hops absorption losses (first wort, boil, aroma) -0.06 -0.2  
Post boil Volume (equipment estimates 5.52 g | 22.1 qt) 5.77 23.1  
Hops absorption losses (whirlpool, hop stand) -0.02 -0.1  
WARNING: Exceeded batch size - reduce boil size    
Volume into fermentor (equipment estimates 5.75 g | 23 qt) 5.5 22  
Total: 8.39 33.6
Equipment Profile Used: System Default
"Course Maintenance" Kölsch beer recipe by Brewer #436224. BIAB, ABV 4.75%, IBU 27.25, SRM 3.75, Fermentables: (Old World Pilsner, Wheat Malt, Vienna) Hops: (adeena) Other: (Calcium Chloride (anhydrous), Citric acid, Epsom Salt, Gypsum, Salt)
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  • Last Updated: 2026-04-26 15:10 UTC