split a big brew

Discussion in 'General Brewing Discussions' started by Markbrew65, Jul 3, 2017.

  1. Markbrew65

    Markbrew65 New Member

    Joined:
    Jun 16, 2016
    Messages:
    16
    Likes Received:
    4
    Trophy Points:
    3
    Location:
    Brisbane, Australia
    I have a recipe that has just over 7kg of grain but use a robobrew.

    That amount of grain is too much for the robobrew.

    Was just wondering if splitting the brew to say 2x3.5kg grain and 15 lt strike water and 2 lt sparge. then do the brew twice and combine for the final boil.

    would be a long brew day but possibly a way to do a big brew.

    What are peoples thoughts on this ?
     
  2. jmcnamara

    jmcnamara Well-Known Member

    Joined:
    Aug 29, 2012
    Messages:
    2,457
    Likes Received:
    1,947
    Trophy Points:
    113
    Gender:
    Male
    Location:
    Rosedale, MD
    That seems perfectly reasonable
     
  3. J A

    J A Well-Known Member

    Joined:
    Jan 19, 2016
    Messages:
    3,473
    Likes Received:
    2,686
    Trophy Points:
    113
    Location:
    Austin, Texas
    #3 J A, Jul 3, 2017
    Last edited: Jul 3, 2017
    No matter what size system you have to do exactly that for bigger batches or normal size batches of extremely high gravity beer. Even craft breweries use this method. I know one local brewery with relatively large capacity has a 25 barrel mash tun/boiler system and 50 barrel fermenting tanks. Typical brew day is brew twice to fill a fermenter.
    I just got a 15 gallon fermenter and I'm planning a double brew day so I can ferment 2 kegs of beer in one go instead of one. I won't do every batch like that, but for beers that I'd like to keep on tap more regularly I'd like a extra keg on hand. My wife really is happier with my brewing activities when I have her session Pale Ale ready and waiting for her. ;)
     
    Markbrew65, jeffpn and Trialben like this.
  4. Mark D Pirate

    Mark D Pirate Well-Known Member

    Joined:
    Aug 21, 2016
    Messages:
    1,887
    Likes Received:
    1,280
    Trophy Points:
    113
    Occupation:
    Master carpenter , all round good guy
    Location:
    Radelaide SA , Australia
    A converted cooler / esky mash tun would easily handle that much grain if you can do a single boil in your robobrew
    What's the final volume into fermenter ?
     
  5. Markbrew65

    Markbrew65 New Member

    Joined:
    Jun 16, 2016
    Messages:
    16
    Likes Received:
    4
    Trophy Points:
    3
    Location:
    Brisbane, Australia
    The robobrew will handle the boil but its the large amount of grain that would be the issue.

    Thanks for the tips folks.

    I will either split the brew or replace some of the grain with some malt syrup.
     
  6. Mark D Pirate

    Mark D Pirate Well-Known Member

    Joined:
    Aug 21, 2016
    Messages:
    1,887
    Likes Received:
    1,280
    Trophy Points:
    113
    Occupation:
    Master carpenter , all round good guy
    Location:
    Radelaide SA , Australia
    Why not a reiterated mash then ?
    Mash 1/2- 2/3 of the grain but don't mash out , remove malt pipe and dump spent grain then add remaining malt into your malt pipe to use the enzymes to convert last of the grain and a single boil
     
    Markbrew65 likes this.

Share This Page

arrow_white