Mash Tun Drainage

Discussion in 'Homebrewing' started by Boonedog, Apr 11, 2013.

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  1. Boonedog

    Boonedog Initiate (0) Apr 10, 2013 Illinois

    Dumb noob question.

    Building a mash tun from an igloo cube cooler this weekend and the drain is not right at the bottom. Which I guess is OK seeing that others have used this cooler with success.

    So how do you get the wort that is below drain level out of a mash tun?
     
  2. epk

    epk Pundit (849) Jun 10, 2008 New Jersey

    I suppose you could tip it a little forward. Though I never worried about it. You'll get all the good stuff out as you sparge anyway.
     
  3. VikeMan

    VikeMan Grand Pooh-Bah (3,067) Jul 12, 2009 Pennsylvania
    Pooh-Bah

    Your false bottom or manifold or bazooka-type screen will be on or near the bottom, and will form part of a siphon that will drain most of the wort. There will still be some dead space though. Always is.
     
  4. Boonedog

    Boonedog Initiate (0) Apr 10, 2013 Illinois

    You know. I forgot about the batch sparge... Sure, that will push out any leftover from the first runnings.
    Thanks!!
     
  5. sergeantstogie

    sergeantstogie Initiate (0) Nov 16, 2010 Washington

    Not really. With a batch sparge you are adding water which mixes up with all the remaining wort. So your first, higher gravity runnings, will be diluted and incorporated into the sparge water.
     
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  6. epk

    epk Pundit (849) Jun 10, 2008 New Jersey

    How is diluting them into the sparge water not going to help wash them out? Or are you just saying it doesn't technically "push" them out?
     
  7. MADhombrewer

    MADhombrewer Initiate (0) Jun 4, 2008 Oregon

    The left over first runnings will essentially become second runnings with the addition of sparge water. I would suspect you will still have the same amount of left over wort no matter how many times you drain.

    To the OP: tip it a little to get the most out, there will be extra though.
     
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  8. Boonedog

    Boonedog Initiate (0) Apr 10, 2013 Illinois

    OK. Got it. obviously this works or else no one would do it this way.

    A bit of a tip at the end it is!
     
  9. tngolfer

    tngolfer Initiate (0) Feb 16, 2012 Tennessee

    Don't forget that space will be mostly grain so you aren't losing as much wort as you think.
     
  10. Soulrebel

    Soulrebel Initiate (0) Oct 15, 2008 California

    Use water to calculate the amount of liquid that is left behind. That way you still end up with the desired amount of beer. Add a gallon and drain it back into your jug. Then you will know how much additional sparge water to use.
     
  11. Boonedog

    Boonedog Initiate (0) Apr 10, 2013 Illinois

    So its experience. Do a batch. Take notes. Temperature, Sparge and mash water amounts. etc.

    Create a profile and tweak as you go. Sounds like a plan.
     
  12. sergeantstogie

    sergeantstogie Initiate (0) Nov 16, 2010 Washington

    Yep. I think what Soulrebel was suggesting, and I agree, is to just put water in your tun and drain it out and then measure what is left over then you add that into your batch size so you account for how much is lost so you still hit your desired amount into the kettle.
     
  13. VikeMan

    VikeMan Grand Pooh-Bah (3,067) Jul 12, 2009 Pennsylvania
    Pooh-Bah

    This is good advice. And for the OP: Don't forget to account for the water that the grain will absorb. I think I use 0.12 gallons per pound for that, IIRC.
     
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