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Puna Imperial Stout

376 calories 36.4 g 473 ml
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Beer Stats
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
1.085
1.019
8.7%
31.6
42.5
5.4
n/a
 
Fermentables
Amount Fermentable Cost 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
 
Other Ingredients
Amount Name Cost 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
Quick Water Requirements
Water Liters
WARNING: Boil kettle capacity (45.4 L) exceeded. Volume required: 1010.7 L. Suggest reducing initial water volume to 45.4 L and adding 965.3 L sparge/top-off.  
WARNING: Mash tun capacity exceeded. Volume required: 1290.15 L 1057.5
Strike water volume at mash thickness of 3 L/kg 1057.5
Mash volume with grains 1290.2
Grain absorption losses -352.5
Remaining sparge water volume 176.4
Mash Lauter Tun losses -0.9
Volume increase from sugar/extract (early additions) 19.5
Pre boil volume (equipment estimates 1010.7 L) 900
Boil off losses -5.7
Hops absorption losses (first wort, boil, aroma) -5
Post boil volume (equipment estimates 889.3 L) 1000
Estimated amount in fermentor 1000
Total: 1233.9  
Equipment Profile Used: System Default
"Puna Imperial Stout" Russian Imperial Stout beer recipe by josembini@gmail.com. All Grain, ABV 8.69%, IBU 31.56, SRM 42.47, Fermentables: (Pale 6-Row, CaraMunich III, CaraAroma, Chocolate Wheat, Special W, Biscuit, Carafa III, Roasted Barley, Corn Sugar - Dextrose) Hops: (Pahto) Other: (Chalk, Calcium Chloride (dihydrate), Epsom Salt, Gypsum, Phosphoric acid, Baking Soda)
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  • Last Updated: 2026-03-23 14:41 UTC