Czech Dark Lager
BJCP 2015 – 3D
Batch Size:
11.00 gallons
Brew Date:
January 20, 2025
Statistics
Attenuation:
72.9% Apparent
59.4% Real
Fermentables
Hops
| Amount |
Hop |
Time |
Use |
Form |
AA |
| 4.00 ounces | Saaz | 90 minutes | First Wort | Pellet | 1.7% |
| 1.90 ounces | Magnum | 60 minutes | Boil | Pellet | 12.1% |
| 3.50 ounces | Saaz | 20 minutes | Boil | Pellet | 1.7% |
| 2.50 ounces | Saaz | 20 minutes | Aroma | Pellet | 1.7% |
| 11.90 ounces |
Total Hop Weight |
Non-Fermentables
| Amount |
Non-Fermentable |
Type |
Use |
Time |
| 0.50 g | Epsom Salt (MgSO4) | Water Agent | Mash | 0 minutes |
| 8.00 ml | Lactic Acid | Water Agent | Mash | 0 minutes |
| 0.25 g | Epsom Salt (MgSO4) | Water Agent | Sparge | 0 minutes |
| 3.00 ml | Lactic Acid | Water Agent | Sparge | 0 minutes |
Yeasts
| Name |
Lab/Manufacturer |
Product ID |
Form |
| Pilsner Lager | White Labs | WLP800 | Liquid |
Equipment Profile Geoff's Electric Equipment
Batch Size:
11.00 gallons
Boil Volume:
13.38 gallons
Evaporation Rate:
8.22% per hour
Trub Chiller Loss:
0.26 gallons
Mash Profile Decoction, Single - Well Modified Malts - Batch Sparge
Mash Steps
| # |
Name |
Type |
Time |
Temp. |
| 1 | Low Sach Rest | Infusion | 35 minutes | 132° F |
| 2 | Decotion | Decoction | 45 minutes | 154° F |
Fermentation and Aging
Secondary:
3 days @ 62° F
Tertiary:
30 days @ 34° F
General Info
Start with RO water if possible or target a soft water profile (not Pilsen - that's too soft). Cold steep Carafa for 24 hours in 1 quart of water (use a grain bag). Add liquid to boil. If not using floor malted pilsner malt, use the well-modified decoction regimen (skip the protein rest and start at low saccharification temp of 132 - adjust decoction amount or step mash to target 153 full re).