Kölsch
BJCP 2021 – 05B
Batch #:
2025-17
Batch Size:
11.00 gallons
Boil Time:
90 min
Status:
Planned
Brew Date:
November 30, 2025
Statistics
OG:
1.050 12.4° P
Carbonation:
2.4 volumes
Color:
3.7SRM
IBU:
29.8
BU/GU:
0.6
Fermentables
| Amount | Fermentable | % |
|---|---|---|
| 15.00 pounds | Pilsner Weyermann | 71.4% |
| 3.50 pounds | Pale Malt, 2-Row Rahr | 16.7% |
| 1.00 pounds | Acidulated Weyermann | 4.8% |
| 1.00 pounds | Wheat Malt, Pale Weyermann | 4.8% |
| 0.50 pounds | Carahell Weyermann | 2.4% |
| 21.00 pounds | Total Fermentable Weight | 100% |
Hops
| Amount | Hop | Time | Use | Form | AA | |
|---|---|---|---|---|---|---|
| 3.00 ounces | Tettnang | 90 minutes | First Wort | Pellet | 2.1% | |
| 1.25 ounces | Magnum | 60 minutes | Boil | Pellet | 12.5% | |
| 3.00 ounces | Tettnang | 15 minutes | Boil | Pellet | 2.1% | |
| 7.25 ounces | Total Hop Weight | |||||
Non-Fermentables
| Amount | Non-Fermentable | Type | Use | Time |
|---|---|---|---|---|
| 1.50 g | Calcium Chloride (CaCl2) | Water Agent | Mash | 0 minutes |
| 3.50 g | Epsom Salt (MgSO4) | Water Agent | Mash | 0 minutes |
| 1.50 g | Gypsum (CaSO4) | Water Agent | Mash | 0 minutes |
| 2.50 ml | Lactic Acid | Water Agent | Mash | 0 minutes |
| 1.00 g | Calcium Chloride (CaCl2) | Water Agent | Sparge | 0 minutes |
| 3.00 g | Epsom Salt (MgSO4) | Water Agent | Sparge | 0 minutes |
| 1.00 g | Gypsum (CaSO4) | Water Agent | Sparge | 0 minutes |
| 2.00 ml | Lactic Acid | Water Agent | Sparge | 0 minutes |
Yeasts
| Name | Lab/Manufacturer | Product ID | Form |
|---|---|---|---|
| Dieter | Imperial Yeast | G03 | Liquid |
Equipment Profile Geoff's Electric Equipment
Batch Size:
11.00 gallons
Boil Volume:
12.85 gallons
Boil Time:
90 minutes
Evaporation Rate:
5.83% per hour
Hop Utilization:
100%
Trub Chiller Loss:
0.26 gallons
Mash Profile Step Mash - Hochkurz
Ideal Grain Temp:
68°F
Mash Steps
| # | Name | Time | Temp. | |
|---|---|---|---|---|
| 1 | Maltose Rest | Temperature | 40 minutes | 145° F |
| 2 | Dextrinization Rest | Temperature | 45 minutes | 158° F |
| 3 | Mash Out | Temperature | 10 minutes | 168° F |
Fermentation and Aging
Primary:
11 days @ 60° F
Secondary:
3 days @ 68° F
Tertiary:
3 days @ 34° F
General Info
Cologne water profile from Zymurgy May/June 2017, page 46. Water salts from Bru'n Water calculations.
