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Puna Imperial Stout

Method: All Grain
Style: Russian Imperial Stout
Boil Time: 60 min
Batch Size: 1000 liters (ending kettle volume)
Pre Boil Size: 900 liters
Pre Boil Gravity: 1.094 (recipe based estimate)
Efficiency: 73% (ending kettle)
Calories: 376 calories (Per 473ml)
Carbs: 36.4 g (Per 473ml)

Created: Monday March 23rd 2026

Original Gravity:

1.085

Final Gravity:

1.019

ABV (standard):

8.7%

IBU (tinseth):

31.6

SRM (morey):

42.5

Mash pH

5.4

Cost $

n/a

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Fermentables

Amount	Fermentable	PPG	°L	Bill %
275 kg	American - Pale 6-Row275 kg Pale 6-Row	35	1.8	71.9%
25 kg	German - CaraMunich III25 kg CaraMunich III	34	57	6.5%
12.50 kg	German - CaraAroma12.5 kg CaraAroma	34	130	3.3%
15 kg	German - Chocolate Wheat15 kg Chocolate Wheat	31	413	3.9%
10 kg	Weyermann - Special W10 kg Special W	33.6	115	2.6%
5 kg	Belgian - Biscuit5 kg Biscuit	35	23	1.3%
5 kg	Weyermann - Carafa III5 kg Carafa III	32	525	1.3%
5 kg	Weyermann - Roasted Barley5 kg Roasted Barley	29.9	432	1.3%
30 kg	Corn Sugar - Dextrose30 kg Corn Sugar - Dextrose	42	0.5	7.8%
382.50 kg / $ 0.00

Hops

Amount	Variety	Cost	Type	AA	Use	Time	IBU	Bill %
1,000 g	Barth-Haas - Pahto1000 g Pahto Hops		Pellet	18.5	Boil	60 min	31.56	100%
1,000 g / $ 0.00

Show Summary View

Amount	Variety	Cost	IBU	Bill %
1,000 g	Barth-Haas - Pahto (Pellet) 1000 g Pahto (Pellet) Hops		31.56	100%
1,000 g / $ 0.00

Other Ingredients

Amount	Name	Type	Use	Time
100 g	Chalk	Water Agt	Mash	1 hr.
330 g	Calcium Chloride (dihydrate)	Water Agt	Mash	1 hr.
100 g	Epsom Salt	Water Agt	Mash	1 hr.
130 g	Gypsum	Water Agt	Mash	1 hr.
17.58 ml	Phosphoric acid	Water Agt	Mash	1 hr.
7 g	Phosphoric acid	Water Agt	Sparge	1 hr.
50 g	Baking Soda	Water Agt	Mash	1 hr.

Yeast

Fermentis - Safale - American Ale Yeast US-05

Amount:	1 Each	Cost:
Attenuation (custom):	75%	Flocculation:	Medium
Optimum Temp:	12 - 25 °C	Starter:	No
Fermentation Temp:	-	Pitch Rate:	0.35 (M cells / ml / ° P) 7159 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

CO₂ Level: 2.25 Volumes

Target Water Profile

Abriles

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
110	10	40	120	80	80
Mash Chemistry and Brewing Water Calculator

Last Updated and Sharing

Views

Brews

Public: Yup, Shared
Last Updated: 2026-03-23 14:41 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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