how far in advance do you crush your grain?

Discussion in 'Homebrewing' started by smchenry75, Jul 29, 2015.

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  1. smchenry75

    smchenry75 Initiate (0) Jul 7, 2010 Indiana

    I typically crush my grain right before brewing. I'm brewing this Saturday and need to save some time in the process so I'm going to prep ahead of time (measure my water out in buckets, treat with Campden tablets, and crush my grain).

    How far in advance is safe to crush your grain before brewing... the night before? What about 3 or 4 days? Would you then refrigerate the crushed grain or is leaving it in a sealed food grade bucket at room temperature safe? Thanks! Sean
     
  2. GormBrewhouse

    GormBrewhouse Pooh-Bah (2,111) Jun 24, 2015 Vermont
    Pooh-Bah

    I've been told 3 weeks if it is sealed, but I believe your beer will be better with fresh or near freshly ground grains.

    I grind minutes befor mashing.
     
  3. Cadmando18

    Cadmando18 Initiate (0) Feb 14, 2015 Oregon

    We get 50lbs bags of milled malt at the brewery I help at. It's still good and lasts for weeks after we get it. If stored in a dry cool place it can store for probably a month. I'm guessing it could be stored longer but I have no experience with that.

    I have personally pre-milled a lot of grain in prep for a brew day. I was taking some crystal malt over to a friend's house and I got it milled Friday. We brewed on Sunday. No problem.

    No don't put it in the fridge. That will draw moisture and probably some other flavors and smells you don't want. Main thing is keep it dry, and keep it cool-ish. About 65 - 70F is fine.
     
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  4. scottakelly

    scottakelly Maven (1,487) May 9, 2007 Ohio

    I always do the night before. No issues and no difference from immediately before
     
  5. JohnSnowNW

    JohnSnowNW Initiate (0) Feb 6, 2013 Minnesota

    I always do so on brew day, but before I got my mill I had crushed them at the LHBS up to a week before...with no perceivable negative effects.
     
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  6. CurtFromHershey

    CurtFromHershey Initiate (0) Oct 4, 2012 Minnesota

    Another time saver to consider is to heat your strike water the night before to ~190* and then wrap the kettle with a few towels.

    As for the grains, the night before will be fine.
     
  7. smchenry75

    smchenry75 Initiate (0) Jul 7, 2010 Indiana

    Heat the strike water that far in advance? It will hold temperature that long?
     
  8. GreenKrusty101

    GreenKrusty101 Initiate (0) Dec 4, 2008 Nevada

    Depends on the humidity in your area. I usually mill grain a day or 2 before brewing, but given ideal storage variebles...6 months would probably be OK.
     
  9. CurtFromHershey

    CurtFromHershey Initiate (0) Oct 4, 2012 Minnesota

    You'll lose probably 2 or 3 degrees an hour if it's wrapped up. 190* might be too high to start with actually.

    This way, you'll only need to heat your water a little bit before mashing in, rather than taking it up from room temp.
     
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  10. VikeMan

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

    I crush my grains about a half hour, give or take, before the mash. I firmly believe fresh is better. And that the little things add up. YMMV.
     
  11. pweis909

    pweis909 Grand Pooh-Bah (3,250) Aug 13, 2005 Wisconsin
    Pooh-Bah

    I recently got a grain crusher and now crush while my strike water heats up. I used to buy pre-crushed grain and usually would use it within a week or two, but occasionally held on to it for months, as many as 6 months. If the beer was worse for wear, I couldn't tell. Although these results make me skeptical that advance crushing is problematic, if you can do it in close proximity to your brewing effort, why wouldn't you? It certainly wont seem less fresh than crushing a week or two in advance.
     
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  12. CurtFromHershey

    CurtFromHershey Initiate (0) Oct 4, 2012 Minnesota

    Completely agree, although crushing and sealing the grains the night before is probably one of the more minor offenses if you need to save time on a brew day
     
  13. GreenKrusty101

    GreenKrusty101 Initiate (0) Dec 4, 2008 Nevada

    Yes, fresh should be better, but your grist usually doesn't suffer too much from milling a little early...I want to believe too and sleep good, but I've made too many beers with leftovers that turned out exceptionally good : )
     
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  14. skivtjerry

    skivtjerry Pooh-Bah (1,865) Mar 10, 2006 Vermont
    Pooh-Bah

    I bought bags of crushed malt for many years. They will keep just fine for at least 3-6 months if storage is reasonably cool and dry (i.e. not in a garage in Texas, though obviously uncrushed malt will not survive long there either).
     
  15. GreenKrusty101

    GreenKrusty101 Initiate (0) Dec 4, 2008 Nevada

    F$#^@ing socialist homebrewer! ...or explain new avatar : ) ...OK, let's get a room : )

    Seriously BAs: I have a 3 gal mashtun (for 5 gal partial mashes or the whole enchilada 1gal+ batches) I'm willing to give away to a new brewer that can convince me they're worthy...I will also pay shipping (The Donald need not apply)...cheers All! : )
     
    #15 GreenKrusty101, Jul 30, 2015
    Last edited: Jul 30, 2015
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  16. ventura78

    ventura78 Pundit (972) Nov 22, 2003 Massachusetts

    I brewed up a big batch of my house beer in June that I ran through my grinder in December. Tried to get to it before that but couldn't. ( Came out good ) I wouldn't sweat a few days, or a few months.
     
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  17. JoeSpartaNJ

    JoeSpartaNJ Zealot (691) Feb 5, 2008 New Jersey

    I crush my grains then heat my mash water.
     
  18. GormBrewhouse

    GormBrewhouse Pooh-Bah (2,111) Jun 24, 2015 Vermont
    Pooh-Bah

    if you have a grain mill I believe you will see the difference grinding the day of the boil vs getting grains pre crushed then using months after you receive them, just my thoughts.
     
  19. psnydez86

    psnydez86 Initiate (0) Jan 4, 2012 Pennsylvania

    I've brewed with freshly crushed grain. I've brewed with months old crushed grain. Never noticed a difference.
     
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  20. MrOH

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

    I usually go with 1-2 days, and I condition the malt beforehand.
     
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