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ALTBOY

Method: BIAB
Style: North German Altbier
Boil Time: 60 min
Batch Size: 6 gallons (fermentor volume)
Pre Boil Size: 7.25 gallons
Post Boil Size: 6 gallons
Pre Boil Gravity: 1.040 (recipe based estimate)
Post Boil Gravity: 1.048 (recipe based estimate)
Efficiency: 75% (brew house)
Hop Utilization: 97%
Calories: 158 calories (Per 12oz)
Carbs: 16.4 g (Per 12oz)

Created: Tuesday March 31st 2026

Original Gravity:

1.048

Final Gravity:

1.012

ABV (standard):

4.7%

IBU (tinseth):

27.1

SRM (morey):

13.7

Mash pH

n/a

Cost $

n/a

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Fermentables

Amount	Fermentable	PPG	°L	Bill %
4.25 lb	Rahr - North Star Pils4.25 lb North Star Pils	36.3	1.7	40%
4.25 lb	Weyermann - Munich Type II (Dark)4.25 lb Munich Type II (Dark)	37	10	40%
1 lb	German - Caramel Pils1 lb Caramel Pils	35	2.4	9.4%
1 lb	German - CaraMunich III1 lb CaraMunich III	34	57	9.4%
2 oz	German - Carafa I2 oz Carafa I	32	340	1.2%
10.62 lbs / $ 0.00

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
28 g	Spalt28 g Spalt Hops	Pellet	4.5	Boil at 212 °F	60 min	14.97	33.3%
28 g	Spalt28 g Spalt Hops	Pellet	4.5	Boil at 212 °F	30 min	11.5	33.3%
28 g	Spalt28 g Spalt Hops	Pellet	4.5	Aroma at 212 °F	1 min	0.65	33.3%
84 g / $ 0.00

Show Summary View

Amount	Variety	Cost	IBU	Bill %
84 g	Spalt (Pellet) 84 g Spalt (Pellet) Hops		27.12	99.9%
84 g / $ 0.00

Mash Guidelines

Amount	Description	Type	Start Temp	Target Temp	Time
8 gal		Temperature	152 °F	152 °F	60 min
		Temperature	152 °F	168 °F	10 min

Yeast

Imperial Yeast - G02 Kaiser

Amount:	1 Each	Cost:
Attenuation (avg):	73%	Flocculation:	Low
Optimum Temp:	55 - 65 °F	Starter:	No
Fermentation Temp:	65 °F	Pitch Rate:	0.35 (M cells / ml / ° P) 95 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

CO₂ Level: 2.65 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

Last Updated and Sharing

Views

Brews

Public: Yup, Shared
Last Updated: 2026-03-31 18:53 UTC

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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