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Thread: How much grain will a 100 gallon mash hold

  1. #1
    Join Date
    Oct 2012
    Location
    Midland, Texas
    Posts
    38

    How much grain will a 100 gallon mash hold

    I have a 100 gallon mash tun. Trying to get a good idea of how much it will hold before I run a test with it later this week

    Thanks in advance...

  2. #2
    Join Date
    Jul 2018
    Location
    Connecticut
    Posts
    4
    Quote Originally Posted by Mad Scientist View Post
    I have a 100 gallon mash tun. Trying to get a good idea of how much it will hold before I run a test with it later this week

    Thanks in advance...
    There are calculators available that will project your overall mash volume required. You can play around with it to determine the max weight of grain you can fit based on water:grain ratio.


    quick reference
    https://www.rackers.org/calcs.shtml

    brewing software like beersmith, promash, and brewers friend can also estimate the mash volume

  3. #3
    Join Date
    Sep 2012
    Location
    Moorhead, Minnesota
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    610
    I would guess about 250 lbs

  4. #4
    Join Date
    Dec 2013
    Location
    Danielson CT
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    117
    Quote Originally Posted by Junkyard View Post
    I would guess about 250 lbs
    that's a great guess. i have a 100gal mash tun and i think the most that i've done was 215 and had a tiny amount of room to spare, maybe not 250 but pretty close.

  5. #5
    Join Date
    Sep 2012
    Location
    Moorhead, Minnesota
    Posts
    610
    Quote Originally Posted by wlw33 View Post
    that's a great guess. i have a 100gal mash tun and i think the most that i've done was 215 and had a tiny amount of room to spare, maybe not 250 but pretty close.
    Lower your liquor to grist ratio and I bet you'd get 250 in there

  6. #6
    Join Date
    Mar 2003
    Location
    Minocqua WI
    Posts
    818
    .0027lbs/bbl hydrated
    Mash Volume @1/3gl to pnd ft/3
    Pounds of grain 200 2.24316
    Gal. mash water 66 8.844
    Total 11.08716
    Brewmaster, Minocqua Brewing Company
    tbriggs@minocquabrewingcompany.com
    "Your results may vary"

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