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Old 10-31-2010, 12:33 PM   #1
passedpawn
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Default Paper Shredder Mill

This was attempted a year ago, but I thought the idea had merit and I gave it a try myself. I don't know what kind of shredder was used in the last attempt, but I had outstanding results.

I have a motorized MaltMill, so this was just a fun Sunday morning experiment.

A few notes:

  • 1st pass did a fair job, but there were still some (not many really) whole kernals, so I sent it through again.
  • Motor had no problem whatsoever with grain. Seemed like easy work for it.
  • Thin paper slot was about 1.5 grains wide, so feeding into it is a bit of a chore. I rigged a quick chute out of a paper weight and some electrical tape. It chews up the grain pretty fast. A custom hopper would make this a breeze.
  • I had to put a piece of opaque tape over the paper sensor (infrared LED) to keep the motor running.
  • DANGER! Don't kill yourself here.

Shredder...


Shredder, with field expedient hopper installed...


The working end...


Before...


After 1 pass...


After 2nd pass (click for closeup)...


Another (click for giant)...
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Old 10-31-2010, 12:55 PM   #2
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It's difficult to view grist in a bowl or in a pile. It would be much better to spread it out on something with a black background in a single layer. It looks much better than I would have expected and it may be better than it appears piled up in the bowl.

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Old 10-31-2010, 01:28 PM   #3
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It's difficult to view grist in a bowl or in a pile.
Right. Made an attempt. See edit to OP. It's shredded very well.
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Old 10-31-2010, 01:58 PM   #4
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That's much better. The grist looks pretty good. Many of the kernels are severed rather than crushed and there seem to be a lot of large chunks of starch, but I don't think either will be significantly detrimental. Next step would be to actually brew some beer with it ans see what happens. Someone is bound to get hysterical about the potential for contaminating the malt with toxins left behind by the shredded documents. Want to bet?

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Old 10-31-2010, 02:52 PM   #5
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Ok, here you go Catt22, here is the "hysterical" comment, the paper shredder blades have oil on them to help them stay sharp/cut "paper". If someone could figure a way to clean the blades of this oil used and use something like cooking oil to do the same trick it would be a good "oh crap my mill went out, what do I use" option.

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Old 10-31-2010, 10:52 PM   #6
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Ok, here you go Catt22, here is the "hysterical" comment, the paper shredder blades have oil on them to help them stay sharp/cut "paper". If someone could figure a way to clean the blades of this oil used and use something like cooking oil to do the same trick it would be a good "oh crap my mill went out, what do I use" option.
There is no noticeable oil on my shredders. I'd definitely file this under hysterical.
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Old 11-01-2010, 01:47 AM   #7
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Quote:
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There is no noticeable oil on my shredders. I'd definitely file this under hysterical.
Thats cause you don't take proper care of your shredder!

But seriously, the shredders at work get a line of oil on a page about every 100 sheets or so.
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Old 02-15-2011, 02:30 PM   #8
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So, care to brew a small batch with this and let us know what the efficiency is like?

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Old 02-15-2011, 07:33 PM   #9
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I wonder how much abuse the shredder can take. A moderate 5g grain bill could burn up that motor, continuously shredding. Plus there's the oil thing. You've already taken it this far, though, you may as well see what it's capable of.

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Old 02-15-2011, 08:39 PM   #10
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I wonder how much abuse the shredder can take. A moderate 5g grain bill could burn up that motor, continuously shredding. Plus there's the oil thing. You've already taken it this far, though, you may as well see what it's capable of.
+1, my paper shredder has a thermal cutout that shuts it down when the motor overheats. I would guess that every couple min of continuous operation this thing is going to just stop and you will have to wait almost that long for it to cool off. Although I would like to see you confirm or disprove my hypothesis.
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