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Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > First Time milling grains.. Are these fine enough? (pics)
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Old 05-29-2009, 03:01 PM   #11
SpanishCastleAle
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If/when you ever feel like it you could brew a batch and use Kaiser's Efficiency Spreadsheet (can be found in this article) to determine your conversion efficiency. As long as you get a really high number there then your crush is at least tight enough. Then you could loosen the crush until you see a drop in conversion efficiency. Or you could just watch your efficiency and see at what gap it starts to drop. As long as you get close to 100% conversion efficiency there is no need to go any tighter and going tighter than necessary could detract from wort quality.

I started on the loose side (looser than the factory BC setting of ~.039") and tightened until I got ~98%-99% conversion efficiency (which by the way was only a tiny bit tighter than the factory setting.)


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Old 05-29-2009, 03:07 PM   #12
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Quote:
Originally Posted by SpanishCastleAle View Post
Kaiser's Efficiency Spreadsheet
Good info here -^. Thanks!


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Old 05-30-2009, 12:18 PM   #13
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FWIW, the crush in your first picture looks about like the crush that I get from my Barley Crusher on the factory default settings. I consistently get between 70%-73% efficiency with that crush on every batch (batch sparging).
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Old 05-30-2009, 12:59 PM   #14
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Looks like a good crush to me.
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Old 05-30-2009, 07:09 PM   #15
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Originally Posted by StunnedMonkey View Post
FWIW, the crush in your first picture looks about like the crush that I get from my Barley Crusher on the factory default settings.
This is refreshing to hear, for a long time I have often thought the same. We're not splitting atoms here guys, just merely crushing some barley to free it from natures protective husk, that's all, no more, no less.

I would also guess the second finer crush, looks just about like the crush someone would get when they discover they can tighten up their Barley Crusher, and boost efficiency into the 80's.

Ok, I'll take my little black sheep Corona mill and get back in the corner now.



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