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2 roller vs 3 roller mill tested

PostPosted: Wed Nov 25, 2009 4:46 pm
by yeastmeister
My trusty CrankandStein 2 roller mill that I have been using since the beginning of all grain is not keeping up with my 20 gallon system. After much deliberation on mills, I decided to go with the Monster Mill 3 roller.

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I chose the 2 inch rollers heat hardened on the Monster Mill. The rollers come out a dark brown when heat treated.

Here is the original CrankandStein 2 roller next to the MonsterMill 3 roller.

Top:
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Side:
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Back:
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With Hoppers (front):
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With Hoppers (side):
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Down the throat of the 2 roller (factory sold kit):
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Down the throat of the 3 roller (factory sold kit):
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The base and the hopper from both companies costs $35. Overall, I like the monster mill hopper better. It allows grain to be fed in over the entire useable gap in the mill. The CrankandStein hopper holds 9 lbs of grain, the Monster Mill holds 11 lbs.

I started out with a cup of Pilsen for each mill to see what the difference in the crush may be. Both mills are set at 0.045" gap on the roller, although the 3 roller goes through a 0.060" gap first before it gets to the 0.045".
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The 2 roller mill took roughly 7 seconds at 173 RPM to chew through the grain. The 3 roller took 1.5 seconds at 173 RPM to chew through the same amount. Thats what I was mainly looking for.

The 2 roller does a nice job of crushing the grain. There is a little flower, and the husks are there, but they are a little tattered, being in smaller pieces overall.

Overview of 2 roller crush:
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Closeup of 2 roller crush:
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The 3 roller does a slightly better job (although its difficult to represent in these pictures), there is overall, less flour, and the husks are more intact. More intact husks should lead to a more efficient filter bed.

Overview of 3 roller crush:
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Closeup of 3 roller crush:
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Side by side comparison (2 roller on the left):
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Generally the 3 roller mill costs 2.5 times what the 2 roller mill costs. Its up to you to figure out if the 3 roller is worth the price to you. Both mills produce great crush for the 5 to 10 gallon range. I'd recommend going with a 3 roller for 20+ gallon batches. I found no difference in the quality of the build between the CrankandStein and the Monster Mill (listed in alphabetical order only). I can tell you the the 3 roller is indeed a monster. I'm very happy with the new mill.

Sorry guys, the 2 roller has already been claimed by someone else in the club. I expect it to give them years of dependable service.

PostPosted: Wed Nov 25, 2009 5:06 pm
by aleguy
Glad to see you got your hopper kit in. I'm looking forward to seeing it in action. I'm curious though, why you set the gap at 0.045 instead of the usual 0.039?

PostPosted: Wed Nov 25, 2009 7:17 pm
by yeastmeister
Because that's what my old mill was set at. I wanted a side by side. .045 is also the default for monster. Just a coincidence, but I checked and it was true.