proper crush

Discussion in 'Homebrewing' started by hopdog09, Jan 24, 2013.

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  1. hopdog09

    hopdog09 Initiate (0) Sep 6, 2012 Michigan

    after reading many posts on mills and how one sets the rollers on their mills...the question arises..what is the proper crush..what do you use and why.
     
  2. VikeMan

    VikeMan Meyvn (1,392) Jul 12, 2009 Pennsylvania
    Beer Trader

    IMO The proper crush is that one that, in your system, gets you reasonable and consistent efficiency, without stuck sparges, and without excessive astringency. IOW, YMMV.

    I couldn't tell you what my gap is set at. Well, I could if I remembered.
     
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  3. GreenKrusty101

    GreenKrusty101 Defender (679) Dec 4, 2008 Nevada

    I have been buying pre-crushed up to this point, but the mill I just got is factory set at .039" (1mm)
    Who knows what retailers are crushing at...seems to vary a lot.

    Might need to reset or grind twice for something like wheat.
     
  4. JackHorzempa

    JackHorzempa Poo-Bah (2,932) Dec 15, 2005 Pennsylvania
    Supporter

    Below is from the Schmidling website concerning the Schmidling Maltmill:

    “The MALTMILL is provided with a nominal spacing of .045" between the rollers. This produces an excellent crush on all commonly used malt. An adjustable version is available for those who perceive the need for additional flexibility . The roller journals ride in oil-impregnated bronze bearings, pressed into aluminum castings. A coarse textured surface on the rollers prevents the grain from slipping and is the key to providing an efficient mill at far less cost then conventional multiple stage roller mills.”

    Cheers!
     
  5. hopdog09

    hopdog09 Initiate (0) Sep 6, 2012 Michigan

    I'm not very hip..what's IOW, YMMV??
    But, I agree..it seems to be on a case by case basiis..I know if I get grains milled at my local HBS..it's too fine..I was always under the impression that all tha needed to happen is to break/crack the husk..not pulverize..so open up your gap to achieve that..does that sound about right?
     
  6. VikeMan

    VikeMan Meyvn (1,392) Jul 12, 2009 Pennsylvania
    Beer Trader

    "In Other Words"
    "Your Mileage May Vary"

    I'd say your description is on the right track.
     
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  7. Naugled

    Naugled Crusader (730) Sep 25, 2007 New York
    Subscriber

    Vikeman said it best... but to expand...

    Don't get hung up on "too fine" if you're getting good results. There's nothing wrong with flour if your not getting astringency or stuck mashes. I personally make flour, but my mill and my mash tun are different than yours.

    You have to find your own sweet spot for your mill and mash tun and preferences. Once you get to that spot you should have a reasonable efficiency that you can repeat and use to formulate recipes.
     
  8. hopdog09

    hopdog09 Initiate (0) Sep 6, 2012 Michigan

    it's kind of what I figured
    thanks!
     
  9. sarcastro

    sarcastro Disciple (332) Sep 20, 2006 Michigan
    Beer Trader

    inchrisin likes this.
  10. GreenKrusty101

    GreenKrusty101 Defender (679) Dec 4, 2008 Nevada

    Just make sure if you buy a Barley Crusher that you remove the O-ring that it looks like they used to set the gap. I didn't see it and milled a # of Caramunich that I should probably throw away now (even though the O-ring is still shiny and intact). Dooh!

    Looking at the instructions closely, the O-ring appears to be part of the roller that is attached to the handle...so maybe I shouldn't remove it. The pix in the instructions showed it way at the end opposite the handle, but mine came in the middle. Anyone know for sure?
     
  11. kjyost

    kjyost Initiate (0) May 4, 2008 Manitoba (Canada)

    It is on the side normally, and utterly irrelevant, as pulling grain through will cause it to spin the slave.
     
  12. GreenKrusty101

    GreenKrusty101 Defender (679) Dec 4, 2008 Nevada

    So...get rid of it?
     
  13. rlcoffey

    rlcoffey Initiate (0) Apr 20, 2004 Kentucky

    Leave it. Dont worry, it will eventual fall off. Then you just continue on just like you did before.
     
    kjyost likes this.
  14. GreenKrusty101

    GreenKrusty101 Defender (679) Dec 4, 2008 Nevada

    Don't particularly want ground up rubber in my beer though (even though it looks fine now with only 1# thru it).
    I've got 100#s of pre-milled grain to go thru anyway, so I guess it is RAHAHB
     
  15. kjyost

    kjyost Initiate (0) May 4, 2008 Manitoba (Canada)

    I didn't notice when I lost it. I am pretty sure it just rips in one place and falls into your grain in one piece. What is RAHAHB? I always thought it was RDWHAHB :slight_smile:
     
  16. GreenKrusty101

    GreenKrusty101 Defender (679) Dec 4, 2008 Nevada

    probably...but "relax and have a homebrew" works for me : ) Cheers, eh.

    Edit: forgot what the "DW" was for...drink whatever?...don't worry?...seems redundant : )
     
  17. inchrisin

    inchrisin Defender (654) Sep 25, 2008 Indiana

    I use the credit card gap. It's convenient. I guess you could use a half dollar or feeler gague.
    I just learned what SMH stands for tonight. :slight_smile:
     
  18. HerbMeowing

    HerbMeowing Aspirant (267) Nov 10, 2010 Virginia

    My mill is the infamous Barley Crusher.
    Factory gnomes set the gap @ 0.039" which just so happens to be the same priceless width as a credit card.
    39 does a decent job but IMO 36 is more better.
    IIRC YMMV!

    ROTFHAHB.

    Some day...take notice of the difference in crush character when the grains are milled using a high-speed power drill vice hand-cranking. The difference is noticeable.

    Power cranking produces more flour and GITMO-style husk.
    Hand cranking produces less flour and huskier husk.
     
  19. hopdog09

    hopdog09 Initiate (0) Sep 6, 2012 Michigan

    using lower RPM's on the drill helps too
     
  20. mattbk

    mattbk Devotee (467) Dec 12, 2011 New York

    we've all made an o-ring beer. it's a rite of passage for homebrewers.
     
  21. HerbMeowing

    HerbMeowing Aspirant (267) Nov 10, 2010 Virginia

    True'dat but my drill is old-school with two speeds - full-on and full-stop.
     
  22. hopdog09

    hopdog09 Initiate (0) Sep 6, 2012 Michigan

    understood...
     
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