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Dusseldorfer Altbier

  • Dusseldorfer Alt - Altbier (7 B)

    Description:
    Type: All Grain
    Batch Size: 23.0 l
    Pre Boil Volume: 29.6 l
    Pre Boil Gravity: 1.039
    Boil Time: 90 min
    End of Boil Vol: 26.2 l
    Final Bottling Vol: 22.5 l
    Fermentation: Cool fermented Ale 12-16 °C, plus lagering
    OG: 1.046
    FG: 1.009
    ABV: 4.9 %
    Bitterness: 32.5 IBUs
    Color: 14.7 SRM
    Mash: 65°C, 2.75 : 1 (water vs grain), no mash out
    Mash Step: Add 14.0 l of water at 72.7 °C,  60 min
    Sparge Water: 21.2 l
    Sparge Temperature: 77.0 C
    Brewer: !@MMi
    Equipment: Robobrew
    Efficiency: 70.00 %
    Est Mash Efficiency: 77 %
    Carbonation: 2.5 Volume of CO2, 150 gr dextrose

    Ingredients:
    3.20 kg Pilsner, Franco Belge, L=1.7
    0.60 kg Munich, L=8
    0.40 kg Caramunich-40, L=40
    0.40 kg Melanoidin, L=25
    0.40 kg Vienna, L=4
    0.10 kg BlackPrinz, L=500
    16 g Magnum [12.0 %] - First wort 90 min
    14 g Hallertau [4.8 %] - Boil 30 min
    1 tab Whirfloc - Boil 15 min
    14 g Hallertau [4.8 %] - Boil 15 min
    1 pkg German Ale (Wyeast #1007)
    1 pkg Nottingham (substitute)

Dusseldorfer Altbier is a style of beer that originated in the Dusseldorf-region of Germany. 
Altbier - which means 'old beer' in German - refers to the period before brewers started to make lager fermented beers. Alt is an ale fermented beer and after fermentation, the beer is lagered (cool stored), leading to a cleaner, crisper beer than is the norm for some other top-fermented beers such as British ales.