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The Doctor - yeast builder only

Method: All Grain
Style: Doppelbock
Boil Time: 90 min
Batch Size: 23 liters (fermentor volume)
Pre Boil Size: 37.25 liters
Post Boil Size: 31.25 liters
Pre Boil Gravity: 1.050 (recipe based estimate)
Post Boil Gravity: 1.064 (recipe based estimate)
Efficiency: 72% (brew house)
Source: Wolf Pack Brewing
Hop Utilization: 99%
Calories: 1 calories (Per 1.25ml)
Carbs: 0.1 g (Per 1.25ml)

Created: Friday August 27th 2021

Original Gravity:

1.064

Final Gravity:

1.009

ABV (standard):

7.2%

IBU (tinseth):

45.3

SRM (morey):

32.2

Mash pH

5.3

Cost $

7.25

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Fermentation History

Target 10°C
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Carbs: {{ stats.carbs | number:1 }} g / 1.25ml

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Fermentables

Amount	Fermentable	Cost	PPG	°L	Bill %
2 kg	Gladfield - Munich Malt2 kg Munich Malt		36.8	7.87	29%
2 kg	Gladfield - Pilsner Malt2 kg Pilsner Malt	$ 3.40 / kg $ 6.80	37.7	1.93	29%
2 kg	Gladfield - Vienna Malt2 kg Vienna Malt		37.4	3.45	29%
0.30 kg	German - CaraMunich I0.3 kg CaraMunich I		34	39	4.3%
0.25 kg	German - Carafa III0.25 kg Carafa III - (late mash tun addition)		32	535	3.6%
0.20 kg	Gladfield - Light Chocolate Malt0.2 kg Light Chocolate Malt - (late mash tun addition)		32.7	355	2.9%
150 g	Gladfield - Sour Grapes Malt Acid150 g Sour Grapes Malt Acid		12.4	2.03	2.2%
6.90 kg / $ 6.80

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
30 g	Charles Faram - NZ Pacific Jade30 g NZ Pacific Jade Hops	Pellet	13	Boil	60 min	42.43	60%
10 g	Charles Faram - NZ Pacific Jade10 g NZ Pacific Jade Hops	Pellet	13	Whirlpool at 90 °C	20 min	2.09	20%
10 g	Pacifica10 g Pacifica Hops	Pellet	5	Whirlpool at 90 °C	20 min	0.8	20%
50 g / $ 0.00

Show Summary View

Amount	Variety	IBU	Bill %
40 g	Charles Faram - NZ Pacific Jade (Pellet) 40 g NZ Pacific Jade (Pellet) Hops	44.52	80%
10 g	Pacifica (Pellet) 10 g Pacifica (Pellet) Hops	0.8	20%
50 g / $ 0.00

Mash Guidelines

Amount	Type	Start Temp	Target Temp	Time
23 L	Strike	56 °C	55 °C	15 min
	Infusion	55 °C	64 °C	30 min
	Infusion	64 °C	70 °C	30 min
	Infusion	70 °C	77 °C	15 min
19 L	Sparge	77 °C	77 °C	15 min
Starting Mash Thickness: 3 L/kg Starting Grain Temp: 18 °C

Other Ingredients

Amount	Name	Cost	Type	Use	Time
2.25 g	Wyeast - Beer Nutrient	$ 0.20 / g $ 0.45	Other	Boil	15 min.
1 each	Whirlfloc		Water Agt	Boil	15 min.
$ 0.45

Yeast

Fermentis - Saflager - German Lager Yeast W-34/70

Amount:	40 Grams	Cost:
Attenuation (avg):	83%	Flocculation:	High
Optimum Temp:	9 - 22 °C	Starter:	No
Fermentation Temp:	10 °C	Pitch Rate:	1.75 (M cells / ml / ° P) 631 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

Method: co2 Amount: 1.84 bar Temp: 20 °C CO₂ Level: 2.44 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

Ferment at 12C then when SG plateaus, raise to 15C to clean up

Directions from https://www.homebrewersassociation.org/homebrew-recipe/gordon-strong-czech-dark-lager/
Water treatment: RO water treated with ¼ tsp 10% phosphoric acid per 5 gallons
1 tsp CaCl2 in mash. Mash technique: Step mash, mashout, dark grains added at vorlauf

Mash rests: 131°F (55°C) 15 minutes, 147°F (64°C) 30 minutes, 158°F (70°C) 30 minutes, 170°F (77°C) 15 minutes.

Kettle volume: 7 gallons (26 L)

Boil length: 60 minutes

Final volume: 5.5 gallons (21 L)

Fermentation temp: 50°F (10°C) 2 weeks. 32°F (0°C) 12 weeks.

Last Updated and Sharing

804

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Brews

Public: Yup, Shared
Last Updated: 2021-08-30 05:31 UTC
Snapshot Created: 2021-08-27 10:35 UTC
Link To Parent Recipe

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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The Doctor - yeast builder only

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