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-   -   How "fine" should I crush grain? (http://www.homebrewtalk.com/f36/how-fine-should-i-crush-grain-340693/)

samreese 07-10-2012 05:48 PM

How "fine" should I crush grain?
 
I use a Barley Crusher grain mill and set the roller gap to 0.35 inch for crushing base malts. Is this a "normal" crush?

I have been getting good efficiencies of about 80+%

Does anyone know what the factory default gap setting is?

Echeck 07-10-2012 08:15 PM

.039 is what they are originally set at. Just got one and haven't messed with it yet

tre9er 07-10-2012 08:17 PM

You're getting good efficiency, I'd leave it alone...but also check regularly. Different brands/types of grain can have slightly different kernel sizes, especially specialty malts, wheat, etc. Get to know what your crush should look like and monitor it.

Denny 07-10-2012 08:22 PM

Crush until you're scared.

tre9er 07-10-2012 08:49 PM

Quote:

Originally Posted by Denny (Post 4240491)
Crush until you're scared.

Then crush some more!

TyTanium 07-10-2012 08:53 PM

I just skip the whole crushing thing and brew with flour and rice hulls.

tre9er 07-10-2012 09:01 PM

Quote:

Originally Posted by TyTanium (Post 4240606)
I just skip the whole crushing thing and brew with flour and rice hulls.

I seriously wonder if anyone's ever done this...or some sort of filter like for coffee presses or a paper filter. Someone has to have tried it, right?

Denny 07-11-2012 03:36 PM

I've used flour in a mash, but I've never done all flour.

Pilgarlic 07-11-2012 03:43 PM

The "fineness" of the crush will effect sparging or lautering, it won't effect conversion so long as the kernels are broken and gelatinization temps are reached. The optimal crush for sparging or lautering on your system depends upon your system. In general, a coarser crush will drain better than a finer. Beyond that, you'll have to go by experience with your system and process.

Dan 07-11-2012 03:45 PM

Quote:

Originally Posted by tre9er (Post 4240641)
I seriously wonder if anyone's ever done this...or some sort of filter like for coffee presses or a paper filter. Someone has to have tried it, right?

Just an anecdote but I remember reading on this forum somewhere there are breweries that do this. Wish I could remember where I found this bit of trivia.

Where's the beef? :D


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