Grolsch Imperial Lager

Method: All Grain
Style: German Pilsner (Pils)
Boil Time: 90 min
Batch Size: 20.8 liters (fermentor volume)
Pre Boil Size: 28.4 liters
Pre Boil Gravity: 1.039 (recipe based estimate)
Efficiency: 70% (brew house)
Source: Gunnar Schie
Calories: 177 calories (Per 355mL)
Carbs: 17 g (Per 355mL)

Created Tuesday June 11th 2019

Original Gravity:

1.054

Final Gravity:

1.012

ABV (standard):

5.55%

IBU (tinseth):

36.69

SRM (morey):

4.2

Mash pH

n/a

Fermentables

Amount	Fermentable	PPG	°L	Bill %
4.64 kg	German - Pilsner4.64 kg Pilsner	38	1.6	91.3%
0.3 kg	American - Caramel / Crystal 10L0.3 kg Caramel / Crystal 10L	35	10	5.9%
0.14 kg	German - Munich Light0.14 kg Munich Light	37	6	2.8%
5.08 kg	Total

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
28.35 g	Northern Brewer28.35 g Northern Brewer Hops	Pellet	7.8	Boil	90 min	31.72	57.2%
14.15 g	Hallertau Hersbrucker14.15 g Hallertau Hersbrucker Hops	Pellet	4	Boil	15 min	3.77	28.5%
7.1 g	Saaz7.1 g Saaz Hops	Pellet	3.5	Boil	10 min	1.21	14.3%

Show Summary View

Amount	Variety	IBU	Bill %
28.35 g	Northern Brewer28.35 g Northern Brewer Hops	31.72	57.2%
14.15 g	Hallertau Hersbrucker14.15 g Hallertau Hersbrucker Hops	3.77	28.5%
7.1 g	Saaz7.1 g Saaz Hops	1.21	14.3%
49.6 g	Total

Mash Guidelines

Amount	Description	Type	Temp	Time
13.2 L	Varm vannet til 70 for mesk på 66	Infusion	66 °C	60 min
14.4 L	Varm vannet til 66 grader	Infusion	66 °C	30 min
11.4 L	Vannet skal være 66 grader	Sparge	66 °C	15 min
Starting Mash Thickness: 2.5 L/kg

Other Ingredients

Amount	Name	Type	Use	Time
1 each	Whirlfloc	Water Agt	Boil	15 min.

Yeast

White Labs - German Lager Yeast WLP830

Amount:	1 Each
Attenuation (avg):	76.5%	Flocculation:	Medium
Optimum Temp:	10 - 13 °C	Starter:	Yes
Fermentation Temp:	10 °C	Pitch Rate:	1.5 (M cells / ml / ° P) 416 B cells required

Yeast Pitch Rate and Starter Calculator

Priming

CO₂ Level: 2.25 Volumes

Target Water Profile

Balanced Profile

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
0	0	0	0	0	0
Mash Chemistry and Brewing Water Calculator

View Count: 207
Brew Count: 1
Last Updated: 2019-06-23 21:20 UTC

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