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bohemian pilsner with simulated decoction 6-8-2025

Method: BIAB
Style: Czech Premium Pale Lager
Boil Time: 60 min
Batch Size: 6 gallons (fermentor volume)
Pre Boil Size: 7.15 gallons
Post Boil Size: 6 gallons
Pre Boil Gravity: 1.046 (recipe based estimate)
Post Boil Gravity: 1.055 (recipe based estimate)
Efficiency: 76% (brew house)
Hop Utilization: 97%
Calories: 182 calories (Per 12oz)
Carbs: 19.8 g (Per 12oz)

Created: Saturday June 7th 2025

Czech Pilsner

by AndrewS

OG: 1.057 FG: 1.014 ABV: 5.7% IBU: 40

Original Gravity:

1.055

Final Gravity:

1.015

ABV (standard):

5.3%

IBU (tinseth):

39.0

SRM (morey):

3.7

Mash pH

n/a

Cost $

n/a

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Fermentables

Amount	Fermentable	Cost	PPG	°L	Bill %
12 lb	Weyermann - Floor-Malted Bohemian Pilsner12 lb Floor-Malted Bohemian Pilsner		36.3	1.9	100%
12 lbs / $ 0.00

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
1 oz	Glacier1 oz Glacier Hops	Pellet	5.1	Boil	45 min	14.87	20%
3 oz	Glacier3 oz Glacier Hops	Pellet	5.1	Boil	15 min	24.11	60%
1 oz	Glacier1 oz Glacier Hops	Pellet	5.1	Dry Hop	1 days		20%
5 oz / $ 0.00

Show Summary View

Amount	Variety	Cost	IBU	Bill %
5 oz	Glacier (Pellet)		38.98	100%
5 oz / $ 0.00

Mash Guidelines

Amount	Description	Type	Start Temp	Target Temp	Time
7.96 gal		Infusion	100 °F	133 °F	10 min
		Infusion	--	144 °F	30 min
			--	160 °F	40 min
			--	170 °F	10 min
	simmer	Decoction	--	210 °F	30 min

Other Ingredients

Amount	Name	Type	Use	Time
0.25 g	Baking Soda	Water Agt	Mash	1 hr.
0.25 g	Gypsum	Water Agt	Mash	1 hr.
1.50 tsp	Lactic acid	Water Agt	Mash	1 hr.
0.50 each	Whirlfloc	Water Agt	Boil	15 min.
0.50 tsp	Yeast Nutrient	Other	Boil	15 min.
0.25 tsp	ALDC	Other	Primary	0 min.
2 L	O2	Other	Primary	0 min.
0.50 tsp	Gelatin	Fining	Kegging	0 min.

Yeast

Mangrove Jack - Bohemian Lager Yeast M84

Amount:	1 Each	Cost:
Attenuation (custom):	73%	Flocculation:	High
Optimum Temp:	50 - 59 °F	Starter:	Yes
Fermentation Temp:	49 °F	Pitch Rate:	1.5 (M cells / ml / ° P) 462 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

CO₂ Level: 2.52 Volumes

Target Water Profile

Pilsen (Light Lager)

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
7	3	2	5	5	25
Mash Chemistry and Brewing Water Calculator

Notes

put milled grain in at 100f and let rise to 133, then 10 minute rest.

pulled 2.5 L of wort off right after protein break and used as a starter for 24 hr on a stir plate.

chilled wort overnight to 49F.

drained off settled trube from fermenter 2 quarts

added yeast slurry, dry hops, ALDC and 2 L of O2 6-9-2025 9am.

let slow rise to 68 after fermentation finished started on 6-14-25.

Slow Cold crash starting 6-18-2025.

added gelatin

Kegged 2025

Last Updated and Sharing

Views

Brews

Public: Yup, Shared
Last Updated: 2025-06-18 20:26 UTC

System Default

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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