Geoff Humphrey's BrewBlog > BrewBlogs > Tmavé Pivo [{"NAME":"Czech Dark Lager","VERSION":"1","CATEGORY":"Czech Lager","CATEGORY_NUMBER":"03","STYLE_LETTER":"D","STYLE_GUIDE":"BJCP 2015","TYPE":"Lager","OG_MIN":"1.044","OG_MAX":"1.056","FG_MIN":"1.013","FG_MAX":"1.017","IBU_MIN":"18","IBU_MAX":"38","ABV_MIN":"4.4","ABV_MAX":"5.8","COLOR_FORMULA":"SRM","COLOR_MIN":"14","COLOR_MAX":"35","INFO":"A rich, dark, malty Czech lager with a roast character that can vary from almost absent to quite prominent. Malty with an interesting and complex flavor profile, with variable levels of hopping providing a range of possible interpretations. "}]

Czech Dark Lager
BJCP 2015 – 03D

Batch #:

2020-04

Boil Time:

120 min

Brew Date:

February 15, 2020

Tap Date:

April 25, 2020

Cost:

56.95

Statistics

OG:

1.050 12.4° P

FG:

1.010 2.6° P

Real Extract:

4.4° P

Attenuation:

79% Apparent
64.5% Real

Color:

24.8SRM

IBU:

29.9

BU/GU:

0.6

ABV:

5.1%

ABW:

4.2%

Calories:

166 12 oz

Fermentables

Amount	Fermentable	% of Grist
11.50 pounds	Floor Malted Bohemian Pilsner (Wyermann)	52%
7.25 pounds	Munich II (Weyermann)	32.8%
2.25 pounds	Caramunich II (Weyermann)	10.2%
1.12 pounds	Carafa Special II (Weyermann)	5.1%
22.12 pounds	Total Fermentable Weight	100%

Hops

Amount	Hop	Time	Use	Form	AA
1.50 ounces	Saaz	90 minutes	First Wort	Pellets	3.4%
1.00 ounces	Magnum	60 minutes	Boil	Pellets	10.8%
1.50 ounces	Saaz	20 minutes	Boil	Pellets	3.4%
1.00 ounces	Saaz	0 minutes	Aroma	Pellets	3.4%
5.00 ounces	Total Hop Weight

Non-Fermentables

Amount	Non-Fermentable	Type	Use	Time
0.01	Lactic Acid	Water Agent	Mash	60 minutes

Yeasts

Name	Lab/Manufacturer	Product ID	Form
Urkel	Imperial Yeast	L28	Liquid

Mash Profile Single Decoction

Mash Steps

#	Name	Type	Time	Temp.
1	Protein Rest	Infusion	35 minutes	122° F
2	Saccharification	Decoction	45 minutes	155° F
3	Mash Out	Infusion	10 minutes	168° F

Fermentation and Aging

Primary:

14 days @ 48° F

Secondary:

3 days @ 62° F

Tertiary:

7 days @ ° F

Age:

30 days @ 34° F

General Info

Recipe and mash schedule derived from:

Bob Hall’s 2015 NHC presentation
Mad Fermentationist article
Ivan Chramosil interview (U Fleku former brewer)
Make Your Best Czech Dark Lager - Beer and Brewing Magazine

Tmavé Pivo

Czech Dark LagerBJCP 2015 – 03D