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Old 05-21-2012, 11:39 PM   #1
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Default Is this grain crush ok?

Hey Guys,

I've periodically been running into efficiency issues, and while i have it almost under control, i'm still coming in 0.010 or so below where i should be for my pre-boil gravity, and in turn my starting gravity. There are only a few things left to try, but one thing i'm not sure of is my grain crush. I get my grain pre-milled, usually from either more beer or northern brewer.

Here are some pics of the american pale and cara-pils i used in my last batch. Beersmith said i should come out around 1.078, i came in at 1.063 SG.

Let me know if you guys see anything wrong with it, or if i should look elsewhere.

Thanks

2012-05-20_13-38-07_72.jpg   2012-05-20_13-38-17_473.jpg   2012-05-20_13-38-22_830.jpg  
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Old 05-22-2012, 12:09 AM   #2
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I personally crush my grain far more than pictured above. I'm not afraid of a stuck sparge and haven't had one yet dispite the severe crush I inflict on my grain. I would recommend further crushing if you can. The crush is the single best way of improving your efficiency. I get about 85-90% using a good crush and about a 40 min. sparge time. Cheers!
mark
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Old 05-22-2012, 12:36 AM   #3
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That's an adequate looking crush though I like mine finer.

You said Beersmith predicted 1078 but you got 1063. Beer smith defaults to 75% eff I think. That means you hit about 58% assuming constant volume. That's pretty low but if you're hitting it consistently I wouldn't change anything. Just plan to buy a couple-three more lbs of grain per batch.

That crush may be reducing your eff a bit but I'd look elsewhere if you really want to pursue it.

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Old 05-22-2012, 02:01 AM   #4
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I think that is not crushed nearly enough. Looks like lots of whole grains there.

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Old 05-22-2012, 02:10 AM   #5
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Doesn't look crushed enough to me. I crush as .035" and never get stuck sparges with a copper manifold.

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Old 05-22-2012, 02:50 AM   #6
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I would crush it more, stuck sparge be damned

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Old 05-22-2012, 02:51 AM   #7
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Agree with the rest, tighten up your gap on the mill. It looks like a nice crush, but not nearly fine enough.

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Old 05-22-2012, 03:04 AM   #8
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Is that even crushed? I'd say crush is definatly your issue.

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Old 05-22-2012, 04:36 AM   #9
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Ideally there should be no uncrushed corns, although maximum intact husk to assist with wort separation, and not too much flour. Definately too coarse, mostly uncrushed in fact. Agree - must tighten the mill gap

Have a look at my crush
http://www.youtube.com/watch?v=UAE4Nd6T37k&feature=youtu.be

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Old 05-22-2012, 07:57 AM   #10
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Very poor crush, next time tell them you want a fine crush or better yet get your own mill and do it yourself.

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