Tmavé Pivo

Czech Dark Lager BJCP 2015 – 3D

OG
1.054
FG
1.014
SRM
23.6
ABV
5.5%
IBU
31.1
Batch #
2025-02
Batch Size
11.00 gal
Boil Time
90 min
Brew Date
January 20, 2025
Tap Date
March 20, 2025
Conditioning
Keg
BU/GU
0.58
Carbonation
2.5 vol
ABW
4.2%
Kcal
181 12 oz
Real Extract
5.4° P
Attenuation
72.9% apparent
59.4% real

Fermentables

Bohemian PilsnerWeyermann
14.00 lbs|57.7%
Type
Grain
Origin
Germany
Color
2.0 SRM
PPG
76.0
57.7%
Munich IIWeyermann
7.00 lbs|28.9%
Type
Grain
Origin
Germany
Color
8.5 SRM
PPG
82.2
28.9%
Caramunich IIWeyermann
2.25 lbs|9.3%
Type
Grain
Origin
Germany
Color
63.0 SRM
PPG
75.7
9.3%
Carafa Special IIWeyermann
1.00 lbs|4.1%
Type
Grain
Origin
Germany
Color
415.0 SRM
PPG
77.9
4.1%

Hops

4.00 oz
Saaz 1.7%
90 min First Wort
1.90 oz
Magnum 12.1%
60 min Boil
3.50 oz
Saaz 1.7%
20 min Boil
2.50 oz
Saaz 1.7%
20 min Aroma

Non-Fermentables

0.50 g
Epsom Salt (MgSO4) Water Agent
Mash
8.00 ml
Lactic Acid Water Agent
Mash
0.25 g
Epsom Salt (MgSO4) Water Agent
Sparge
3.00 ml
Lactic Acid Water Agent
Sparge

Yeasts

528 ml
Pilsner LagerWLP800
White Labs

Equipment ProfileGeoff's Electric Equipment

Batch Size
11.00gal
Boil Volume
13.38gal
Boil Time
90min
Evaporation Rate
8.22%per hour
Hop Utilization
80%
Trub Chiller Loss
0.26gal

Mash Profile Decoction, Single - Well Modified Malts - Batch Sparge

Ideal Grain Temp
68°F

Mash Steps

Step 1
Low Sach Rest35 min
132°F
Step 2
Decotion45 min
154°F

Fermentation and Aging

14 days
Primary
48°F
3 days
Secondary
62°F
30 days
Tertiary
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).

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