Mash stirring

Discussion in 'Homebrewing' started by premierpro, Feb 14, 2013.

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  1. premierpro

    premierpro Savant (1,060) Mar 21, 2009 Michigan

    Out of curiosity. How often do you stir your mash per hour? Once I mash in I stir every 20 min.
     
  2. samtallica

    samtallica Initiate (0) Jul 22, 2010 North Carolina

    I don't. Probably doesn't hurt though.
     
  3. JackHorzempa

    JackHorzempa Grand Pooh-Bah (3,375) Dec 15, 2005 Pennsylvania
    Society Pooh-Bah

    I onlt stir at the beginning. I then 'set it and forget it'.

    Cheers!

    P.S. I have a theremometer with a long metal probe that I use to monitor the temperature during the duration of the mash.
     
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  4. Tebuken

    Tebuken Initiate (0) Jun 6, 2009 Argentina

    I usually stir every 15 mins to equate temp throughout the dough, then i take a temp read to know if i need to raise it,it is the way i hold a steady mash temp.
     
  5. psnydez86

    psnydez86 Initiate (0) Jan 4, 2012 Pennsylvania

    I'm in the stir in the beginning and let it rest for an hour club.
     
  6. AlCaponeJunior

    AlCaponeJunior Grand Pooh-Bah (3,452) May 21, 2010 Texas
    Society Pooh-Bah

    I stir about three times, just to make sure the temperature stays equalized and in range. It always does tho.
     
  7. bbarrows

    bbarrows Crusader (459) Sep 14, 2008 California

    In a cooler: never.
     
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  8. MrOH

    MrOH Grand Pooh-Bah (3,995) Jul 5, 2010 Virginia
    BA4LYFE Society Pooh-Bah

    same here, usually. Sometimes, I just stir the bejeesus out of it and then run a couple of quick errands, though. Haven't really noticed much of a difference.
     
  9. Naugled

    Naugled Pooh-Bah (1,944) Sep 25, 2007 New York
    Pooh-Bah

    It depends. If I nail my target temp right out of the chute I don't stir again until I'm ready to sparge. I I'm a tad hot I'll stir every couple of minutes until it cools. Or if I have to raise the temp I'll stir (while adding heat).
     
  10. MLucky

    MLucky Initiate (0) Jul 31, 2010 California

    At least once, about ten minutes in, and usually once more after that. I think it's good idea to re-check the temperature after 10 minutes or so, and when I do I figure I might as well give a stir. Sometimes I stir it once or twice more after that. I've never noticed any difference between the mashes where I've stirred once and those I've stirred 2-3-4 times.
     
  11. mnstorm99

    mnstorm99 Initiate (0) May 11, 2007 Minnesota

    Stir and forget. I don't worry about equalization because in my mind (crazy), opening the lid can have more effect on mash temp.
     
  12. barfdiggs

    barfdiggs Initiate (0) Mar 22, 2011 California

    Stir while mashing in, and then recirculate with a pump and sparge arm until temp is equalized (or I need more heat), after which I won't stir again, but will recirculate via the pump to add heat (via direct fire) if necessary.
     
  13. hopfenunmaltz

    hopfenunmaltz Pooh-Bah (2,635) Jun 8, 2005 Michigan
    Pooh-Bah

    Heat loss is probably the main concern for homebrewers.

    A large mash tun at a production brewery will have mash rakes to stir the mash.
     
  14. VikeMan

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

    I stir about every 15 minutes. I'd like to think I get 0 doughballs right off the bat. But if there are any hiding, they will break up easier the longer the grains soak.
     
  15. TheMonkfish

    TheMonkfish Initiate (0) Jan 8, 2012 Chad

    I stir like a champ at first, especially if the mash temp is a bit high. After that I'll do a quick every 15 minutes or so. Even though it's probably not a real concern I don't stir for the last 15 minutes of the mash rest (so I don't mess with the grain bed.) After that I don't touch it at all.
     
  16. jlpred55

    jlpred55 Initiate (0) Jul 26, 2006 Iowa

    I stir to mash in then I don't again until right before I take the first runnings That way I can look at the mash and tell when it is done if I am mashing for shorter than 60 minutes (fancy trick). When it is, I just stir like hell then run it off. I don't need to worry about disturbing my grain bed!
     
  17. Drucifer

    Drucifer Initiate (0) Apr 16, 2012 Illinois

    I use a cooler system and stir like mad at first until I hit my tempurature and feel no lumpy spots. Once the lid is closed it stays that way until the hour is up
     
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  18. atomeyes

    atomeyes Initiate (0) Jul 13, 2011 Canada (ON)

    the act of stirring causes heat loss.
    opening a lid for 1 minute causes heat loss.
    i'm sure it can easily be quantified. but I would argue that stirring every 15-20 minutes (i.e. 2-3 times during mash) causes a drop in temp by 1-2 F, in the very least.
     
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  19. MMAJYK

    MMAJYK Initiate (0) Jun 26, 2007 Georgia

    I stir when I mash in, then I stir right before I recirculate.
     
  20. WickedSluggy

    WickedSluggy Savant (1,129) Nov 21, 2008 Texas

    I stir during mash-in. I have a temperature probe in the output of my RIMS tube (I run a RIMS based mash heated by an electric RIMS tube) and one on the side of MLT. If those don’t read the same after a few minutes into the mash, I will stir again to ensure that my recirculation is not channeling.
     
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