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Kolsch 2.1

Method: All Grain
Style: Kölsch
Boil Time: 90 min
Batch Size: 5.2 gallons (fermentor volume)
Pre Boil Size: 6.5 gallons
Post Boil Size: 5.33 gallons
Pre Boil Gravity: 1.037 (recipe based estimate)
Post Boil Gravity: 1.045 (recipe based estimate)
Efficiency: 62% (brew house)
Calories: 146 calories (Per 12oz)
Carbs: 11.4 g (Per 12oz)

Created: Wednesday March 20th 2019

Kolonel Kölsch

by Herr Braumeister

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

Heicardo Koelsch

by clepper1979

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

Golsch

by Iliff Avenue Brewhouse

OG: 1.050 FG: 1.010 ABV: 5.3% IBU: 22

Original Gravity:

1.045

Final Gravity:

1.006

ABV (standard):

5.2%

IBU (tinseth):

27.3

SRM (morey):

3.6

Mash pH

5.8

Cost $

n/a

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Fermentables

Amount	Fermentable	PPG	°L	Bill %
9 lb	German - Pilsner9 lb Pilsner	38	1.6	90%
1 lb	German - Vienna1 lb Vienna	37	4	10%
10 lbs / $ 0.00

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
1 oz	Hallertau Mittelfruh1 oz Hallertau Mittelfruh Hops	Pellet	2.5	Boil	10 min	3.72	50%
1 oz	BSG - Tradition1 oz Tradition Hops	Pellet	5.5	Boil	75 min	23.6	50%
2 oz / $ 0.00

Show Summary View

Amount	Variety	IBU	Bill %
1 oz	Hallertau Mittelfruh (Pellet)	3.72	50%
1 oz	BSG - Tradition (Pellet)	23.6	50%
2 oz / $ 0.00

Mash Guidelines

Amount	Description	Type	Start Temp	Target Temp	Time
18 qt	M&B Set point (Target strike temp) = 153	Infusion	--	148 °F	60 min
12 qt		Sparge	--	170 °F	15 min
Starting Mash Thickness: 1.8 qt/lb Starting Grain Temp: 65 °F

Other Ingredients

Amount	Name	Type	Use	Time
2 g	Baking Soda	Water Agt	Mash	0 min.
1 g	Calcium Chloride (anhydrous)	Water Agt	Mash	0 min.
1.50 tbsp	Five Star Chemicals - 5.2 pH Stabilizer	Water Agt	Mash	0 min.
3 g	Gypsum	Water Agt	Mash	0 min.
1 each	Whirlfloc	Water Agt	Boil	10 min.

Yeast

Fermentis - Safale - German Ale Yeast K-97

Amount:	1 Each	Cost:
Attenuation (custom):	85%	Flocculation:	High
Optimum Temp:	54 - 77 °F	Starter:	Yes
Fermentation Temp:	-	Pitch Rate:	0.35 (M cells / ml / ° P) 77 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

CO₂ Level: 2.65 Volumes

Target Water Profile

Gastonia City Water - Gastonia, NC

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
37	10	25	35	70	80
Mash Chemistry and Brewing Water Calculator

Notes

2026: Hops boil time based on pre-boil gravity for target 27-29 IBU.
2/25: 1.018 at 168F --> 1.046 OG
4/25: 1.020 at 184F --> 1.051 OG
1/26:

2026: Adjust mash ratio and strike temp - 18 qts infusion / 12 qts sparge water. M&B Strike temp target 153 (vs former 154).

2025: Use Tradition hops for bittering, Hallertau M. for aroma or IBU balancing. Adjust target IBU based on pre-boil gravity.
Feb 2025 pbg 1.018 at 168F / 27 IBU = Minimum IBU
(If pbg higher, increase target IBU's...)

March 2024 - Updated water profile based on Bison Brew recommendation: https://bisonbrew.com/how-to-brew-kolsch/

Target IBU = 27-29

Last Updated and Sharing

536

Views

Brews

Public: Yup, Shared
Last Updated: 2026-01-31 01:46 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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