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"Sphenodon" (Genus of the Tuatara) NZ Hopped Lager

Method: All Grain
Style: Premium American Lager
Boil Time: 90 min
Batch Size: 70 gallons (fermentor volume)
Pre Boil Size: 46.25 gallons
Post Boil Size: 43.85 gallons
Pre Boil Gravity: 1.061 (recipe based estimate)
Post Boil Gravity: 1.064 (recipe based estimate)
Efficiency: 78% (brew house)
Source: Genus Brewing & Supply
Hop Utilization: 93%
Calories: 129 calories (Per 12oz)
Carbs: 10.6 g (Per 12oz)

Created: Thursday June 26th 2025

Original Gravity:

1.040

Final Gravity:

1.006

ABV (alternate):

4.5%

IBU (tinseth):

20.9

SRM (morey):

2.6

Mash pH

5.8

Cost $

n/a

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Fermentables

Amount	Fermentable	PPG	°L	Bill %
70 lb	German - Pilsner70 lb Pilsner	38	1.6	70.7%
10 lb	American - Vienna10 lb Vienna	35	4	10.1%
15 lb	Flaked Corn15 lb Flaked Corn	40	0.5	15.2%
4 lb	Rice Hulls4 lb Rice Hulls	0	0	4%
99 lbs / $ 0.00

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
4 oz	Warrior4 oz Warrior Hops	Pellet	17.7	Boil	60 min	16.21	15.4%
8 oz	Yakima Valley Hops - NZ Motueka8 oz NZ Motueka Hops	Pellet	6.1	Whirlpool at 170 °F	15 min	1.51	30.8%
8 oz	Nelson Sauvin8 oz Nelson Sauvin Hops	Pellet	12.9	Whirlpool at 170 °F	15 min	3.2	30.8%
3 oz	Motueka3 oz Motueka Hops	Pellet	6.1	Dry Hop	5 days		11.5%
3 oz	Nelson Sauvin3 oz Nelson Sauvin Hops	Pellet	12.5	Dry Hop	5 days		11.5%
26 oz / $ 0.00

Show Summary View

Amount	Variety	IBU	Bill %
4 oz	Warrior (Pellet)	16.21	15.4%
8 oz	Yakima Valley Hops - NZ Motueka (Pellet)	1.51	30.8%
8 oz	Nelson Sauvin (Pellet)	3.2	30.8%
3 oz	Motueka (Pellet)		11.5%
3 oz	Nelson Sauvin (Pellet)		11.5%
26 oz / $ 0.00

Mash Guidelines

Amount	Type	Start Temp	Target Temp	Time
34 gal	Strike	164 °F	152 °F	60 min
31 gal	Sparge	168 °F	168 °F	15 min
26 gal	Sparge	--	--	--
Starting Mash Thickness: 1.25 qt/lb Starting Grain Temp: 65 °F

Other Ingredients

Amount	Name	Type	Use	Time
0.50 oz	WLN1000	Other	Boil	10 min.
5 each	Whirlfloc	Fining	Mash	15 min.
5 ml	ALDC	Other	Primary	0 min.
75 ml	Biofine Clear	Fining	Secondary	0 min.
6 g	Aromazyme	Other	Other	0 min.

Yeast

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

Amount:	14 Each	Cost:
Attenuation (avg):	83%	Flocculation:	High
Optimum Temp:	48 - 72 °F	Starter:	Yes
Fermentation Temp:	-	Pitch Rate:	0.35 (M cells / ml / ° P) 927 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

CO₂ Level: 2.65 Volumes

Target Water Profile

*Most Recent Genus H²O- Winter 2024

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
55	8	4	50	130	25
Mash Chemistry and Brewing Water Calculator

Notes

Water Adjustments:
Mash (Aim for 5.3pH)
Gypsum: 40g
CaCl: 17g
Epsom: 6g

Sparge (add to kettle)
Gypsum: 33g
CaCl: 14g
Epsom: 4g

Top Off (add at flame out)
Gypsum: 6g
CaCl: 3g
Epsom: 1g

Pre Boil Grav: 1.063 (at 49ish gallons)
Post Boil Grav: 1.065 (at 46ish gallons)

Pitch "7 & 7" Starter and packet combo as cool as possible. Add 5ml/12 droppers of ALCD.
Let it rip at 55°F
Rise to 58–62°F for Diacetyl Rest at 1.020ish
Dry hop and add Aromazyme at "finish temp". Close Blow off.
2–3 days on hops
Start Crash to 50 (set head pressure to 16psi)
Add Biofine. wait 24hours
Crash to 42 and carb
Keg

Last Updated and Sharing

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Brews

Public: Yup, Shared
Last Updated: 2025-07-27 19:04 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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