all grain in 5 gal mash tun?

Discussion in 'Homebrewing' started by homebrewer88, Feb 25, 2012.

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  1. homebrewer88

    homebrewer88 Initiate (0) Aug 18, 2011 Virginia

    I just purchased a 5 gal mash tun and a lot of people have been telling me that I cannot brew a 5 gal All Grain batch with it. Is this true? If not can anyone reccomend a good starter recipe?
     
  2. VikeMan

    VikeMan Meyvn (1,484) Jul 12, 2009 Pennsylvania
    Beer Trader

    You certainly can brew 5 gallon batches of low to mid gravity beer in a 5 gallon mash tun. Try the Can I Mash It? calculator at this page...

    http://rackers.org/calcs.shtml/
     
    meatballj626j and leedorham like this.
  3. homebrewer88

    homebrewer88 Initiate (0) Aug 18, 2011 Virginia

    Awesome thanks
     
  4. Homebrew42

    Homebrew42 Initiate (0) Dec 20, 2006 New York

    Whoever told you that is wrong, but brewing 5 gallon batches with a 5 gallon tun will limit you to a gravity of about 1.070, if you want somehing higher than that you'll either need to brew a smaller batch, suppliment with some extract, or get a bigger tun.
     
  5. bwiechmann

    bwiechmann Initiate (96) Nov 30, 2009 Minnesota

    I have a 5 gallon tun and brew 3 gallon batches typically. 5 gallons of one beer is too much to have on hand for my situation. When I want to brew a bigger beer I just reduce the batch size, but even with a 2.5 gallon batch you can brew a RIS that hits 1.120 OG with a little room to spare if you wanted to.
     
    HerbMeowing likes this.
  6. mnstorm99

    mnstorm99 Initiate (0) May 11, 2007 Minnesota

    1.070 is really pushing it...but with a thick mash, double sparge and good efficiency...yes it feasible.
     
  7. leedorham

    leedorham Defender (696) Apr 27, 2006 Washington

    Or you could fly sparge, as long as you have a couple inches of room at the top.
     
  8. Homebrew42

    Homebrew42 Initiate (0) Dec 20, 2006 New York

    13 lbs of grain mashed at 1.25 qts/lb will fill a 5 gallon tun right to the top, but it's doable, and at an efficiency of 75% will yield a 5 gallon batch with an OG of about 1.070. Not totally unreasonable.
     
  9. mnstorm99

    mnstorm99 Initiate (0) May 11, 2007 Minnesota

    75% efficiency took me quite some time to reach, so maybe I am basing it off of that
    Not completely unreasonable, but for years (before getting my own mill) I was working with about 65% efficiency. 65% seems to be the norm around my homebrew club as well...which they can't understand how I am getting 73-75%. 65% gives me about 1.062 OG, not to mention some malts like Golden Promise will have less potential sugar extraction.

    Not really disagreeing with you, I am just trying to look at it in a different light.
     
  10. mnstorm99

    mnstorm99 Initiate (0) May 11, 2007 Minnesota

    I don't know much about fly sparging, but doesn't the fly manifold take up space as well?
     
  11. leedorham

    leedorham Defender (696) Apr 27, 2006 Washington

    If it were a false bottom, yes. Not a whole lot though. The popular plastic ones for the orange round coolers can't take up much more than a pint.
     
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