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BOC Kolsch

Method: All Grain
Style: Kölsch
Boil Time: 60 min
Batch Size: 5.5 gallons (fermentor volume)
Pre Boil Size: 7.5 gallons
Pre Boil Gravity: 1.034 (recipe based estimate)
Post Boil Gravity: 1.047 (recipe based estimate)
Efficiency: 73% (brew house)
Hop Utilization: 96%
Calories: 155 calories (Per 12oz)
Carbs: 15.5 g (Per 12oz)

Created: Tuesday March 10th 2026

Kolonel Kölsch

by Herr Braumeister

OG: 1.048 FG: 1.009 ABV: 5.2% IBU: 23

Kaffir Lime Kolsch

by Bradleyarthurwhite

OG: 1.042 FG: 1.007 ABV: 4.6% IBU: 21

Heicardo Koelsch

by clepper1979

OG: 1.049 FG: 1.012 ABV: 4.9% IBU: 25

Original Gravity:

1.047

Final Gravity:

1.011

ABV (standard):

4.7%

IBU (tinseth):

20.8

SRM (morey):

3.6

Mash pH

5.3

Cost $

n/a

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Fermentables

Amount	Fermentable	PPG	°L	Bill %
9 lb	Weyermann - Floor-Malted Bohemian Pilsner9 lb Floor-Malted Bohemian Pilsner	36.3	1.9	92.3%
0.50 lb	Weyermann - Vienna Malt0.5 lb Vienna Malt	37	3.5	5.1%
4 oz	Weyermann - Acidulated4 oz Acidulated	27	3.4	2.6%
9.75 lbs / $ 0.00

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
1.25 oz	Hallertau Mittelfruh1.25 oz Hallertau Mittelfruh Hops	Pellet	3.2	Boil	60 min	15.29	50%
1.25 oz	Hallertau Mittelfruh1.25 oz Hallertau Mittelfruh Hops	Pellet	3.2	Boil	10 min	5.54	50%
2.50 oz / $ 0.00

Show Summary View

Amount	Variety	Cost	IBU	Bill %
2.50 oz	Hallertau Mittelfruh (Pellet)		20.83	100%
2.50 oz / $ 0.00

Mash Guidelines

Amount	Type	Start Temp	Target Temp	Time
3.65625 gal	Strike	164 °F	149 °F	60 min
5.3125 gal	Sparge	168 °F	170 °F	15 min
Starting Mash Thickness: 1.5 qt/lb Starting Grain Temp: 65 °F

Other Ingredients

Amount	Name	Type	Use	Time
1 tsp	Irish Moss	Fining	Boil	10 min.
1 tsp	Wyeast - Beer Nutrient	Other	Boil	10 min.
4 g	Calcium Chloride (dihydrate)	Water Agt	Mash	1 hr.
1.50 g	Epsom Salt	Water Agt	Mash	1 hr.
1.50 g	Gypsum	Water Agt	Mash	1 hr.
1.50 g	Salt	Water Agt	Mash	1 hr.

Yeast

Wyeast - Kölsch 2565

Amount:	1 Each	Cost:
Attenuation (avg):	75%	Flocculation:	Low
Optimum Temp:	56 - 70 °F	Starter:	Yes
Fermentation Temp:	60 °F	Pitch Rate:	0.35 (M cells / ml / ° P) 85 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

CO₂ Level: 2.45 Volumes

Target Water Profile

Distilled

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
50	6	20	80	40	0
Mash Chemistry and Brewing Water Calculator

Last Updated and Sharing

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Brews

Public: Yup, Shared
Last Updated: 2026-03-11 22:52 UTC

Recipe costs can be adjusted by changing the batch size. They won't be saved but will give you an idea of costs if your final yield was different.

Cost for

Gallons

Cost by

Final Yield

	Cost $	Cost %
Fermentables	$
Steeping Grains (Extract Only)	$
Hops	$
Yeast	$
Other	$
Cost Per Barrel	$ 0.00
Cost Per Pint	$ 0.00
Total Cost	$ 0.00

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