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Kolschish RAGBRAI 2025

Method: All Grain
Style: Kölsch
Boil Time: 60 min
Batch Size: 5.3 gallons (fermentor volume)
Pre Boil Size: 6.625 gallons
Post Boil Size: 5.55 gallons
Pre Boil Gravity: 1.038 (recipe based estimate)
Post Boil Gravity: 1.045 (recipe based estimate)
Efficiency: 69% (brew house)
Source: BrewMaster RRB
Hop Utilization: 98%
Calories: 147 calories (Per 12oz)
Carbs: 12.9 g (Per 12oz)

Created: Thursday June 26th 2025

Golsch

by Iliff Avenue Brewhouse

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

Chris-P Kölsch

by bradyt88

OG: 1.049 FG: 1.011 ABV: 5.0% IBU: 20

Kolsch

by aochsner

OG: 1.053 FG: 1.013 ABV: 5.2% IBU: 22

Original Gravity:

1.045

Final Gravity:

1.008

ABV (alternate):

5.0%

IBU (tinseth):

18.7

SRM (morey):

3.6

Mash pH

5.6

Cost $

6.42

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Fermentables

Amount	Fermentable	Cost	PPG	°L	Bill %
2.50 lb	Viking - Pilsner Zero Malt2.5 lb Pilsner Zero Malt		37	1.9	26.3%
3.50 lb	Briess - Brewers Malt 2-Row3.5 lb Brewers Malt 2-Row	$ 0.98 / lb $ 3.43	37	1.8	36.8%
1 lb	Thomas Fawcett - Pearl Pale Ale Malt1 lb Pearl Pale Ale Malt		36.8	2.65	10.5%
0.50 lb	Briess - Blonde RoastOat Malt0.5 lb Blonde RoastOat Malt		34.5	6	5.3%
0.25 lb	Briess - Carapils Malt0.25 lb Carapils Malt		34.5	1.5	2.6%
1.75 lb	Briess - Pilsen Malt 2-Row1.75 lb Pilsen Malt 2-Row		37	1.2	18.4%
9.50 lbs / $ 3.43

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
0.60 oz	US Tettnang0.6 oz US Tettnang Hops	Pellet	5	Boil	60 min	11.73	30%
0.40 oz	Artisan - Hallertau Mittelfruh0.4 oz Hallertau Mittelfruh Hops	Pellet	2	Boil	60 min	3.13	20%
0.20 oz	US Tettnang0.2 oz US Tettnang Hops	Pellet	5	Boil	12 min	1.64	10%
0.30 oz	Artisan - Hallertau Mittelfruh0.3 oz Hallertau Mittelfruh Hops	Pellet	2	Boil	12 min	0.98	15%
0.20 oz	US Tettnang0.2 oz US Tettnang Hops	Pellet	5	Boil	5 min	0.78	10%
0.30 oz	Artisan - Hallertau Mittelfruh0.3 oz Hallertau Mittelfruh Hops	Pellet	2	Boil	5 min	0.47	15%
2 oz / $ 0.00

Show Summary View

Amount	Variety	IBU	Bill %
1 oz	US Tettnang (Pellet)	14.15	50%
1 oz	Artisan - Hallertau Mittelfruh (Pellet)	4.58	50%
2 oz / $ 0.00

Mash Guidelines

Amount	Description	Type	Start Temp	Target Temp	Time
5.5 gal	Add Grains stir mash	Strike	154 °F	146 °F	60 min
	Slow temp rise over 10 min	Decoction	146 °F	151 °F	20 min
	Mash	Decoction	151 °F	151 °F	40 min
Starting Mash Thickness: 1.2 qt/lb Starting Grain Temp: 68 °F

Other Ingredients

Amount	Name	Type	Use
1.20 g	Baking Soda	Water Agt	Mash
2.20 g	Gypsum	Water Agt	Mash
3.50 g	Calcium Chloride (dihydrate)	Water Agt	Mash
5 ml	Lactic acid	Water Agt	Mash
0.70 g	Gypsum	Water Agt	Sparge
1.10 g	Calcium Chloride (dihydrate)	Water Agt	Sparge
1 ml	Lactic acid	Water Agt	Mash

Yeast

Fermentis - Safale - American Ale Yeast US-05

Amount:	1 Each	Cost:	$ 2.99 / each $ 2.99
Attenuation (avg):	81%	Flocculation:	Medium
Optimum Temp:	54 - 77 °F	Starter:	No
Fermentation Temp:	68 °F	Pitch Rate:	0.75 (M cells / ml / ° P) 168 B cells required

$ 2.99 Yeast Pitch Rate and Starter Calculator

Priming

Method: co2 Amount: 10.69 psi Temp: 34 °F CO₂ Level: 2.65 Volumes

Target Water Profile

My Water Profile 1

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
0	0	0	0	0	0
Mash Chemistry and Brewing Water Calculator

Last Updated and Sharing

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Brews

Public: Yup, Shared
Last Updated: 2025-06-26 13:06 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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