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Jack Hammer (Brewdog)

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Batch size

  • 20 liter(s)
    Expected quantity of finished beer
  • 60 min
    Boil time
  • 10 %/h
    Evaporation rate
  • 25.3 liter(s)
    Boil size
  • 10 %
    Boil loss
  • 16.6
    Pre-boil gravity BLG
  • 5 %
    Trub loss
  • 0 %
    Dry hopping loss

Mash information

  • 83 %
    Mash efficiency
  • 2.62 liter(s) / kg
    Liquor-to-grist ratio
  • 17 liter(s)
    Mash size
  • 23.5 liter(s)
    Total mash volume

Steps

Temp Time
65 C 75 min

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Fermentables

18.2 BLG
7.8% ABV
4.5 SRM
Type Name Amount Yield EBC
Grain Viking Pilsner malt 6 kg 92.3% 82 % 4
Grain Strzegom Pale Ale 0.5 kg 7.7% 79 % 6
Sum 6.5 kg

Hops

117 IBU

Bitterness ratio 1.56 Very bitter

Use for Name Amount Time Alpha acid
Boil Centennial 25 g 75 min 10.5 %
Boil Columbus/Tomahawk/Zeus 30 g 75 min 15.5 %
Boil Centennial 18 g 35 min 10.5 %
Boil Columbus/Tomahawk/Zeus 18 g 35 min 15.5 %
Boil Centennial 50 g 5 min 10.5 %
Boil Columbus/Tomahawk/Zeus 25 g 5 min 15.5 %
Dry Hop Amarillo 100 g 7 day(s) 9.5 %
Dry Hop Citra 100 g 7 day(s) 12 %
Dry Hop Simcoe 100 g 7 day(s) 13.2 %

Yeasts

Name Type Form Amount Laboratory
Safale US-05 Ale Dry 11.5 g Fermentis

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