WTB Corona Mill or Grain Crusher

HossTheGreat said:

For those of you who bought the discount tommy corona mill, what kind of tweaking or adjustments did you need to make to get a good crush?

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Scut_Monkey said:

1. I removed the handle and replaced the bolt that comes with the mill with a standard bolt from Home Depot with the head cut off. This way I can use my drill (you need a beefy drill also).

2. I added a larger hopper by cutting the top and bottom off of a round gallon juice jug and placing that into the already existant hopper.

3. I mounted it in a bucket to contain crushed grain and dust.

That's all I had to do to it to get the crush I want. I crush medium to fine and truthfully it dosen't shread to much husk materail. Like I said you do need a strong drill. I use my corded Ryobi drill and it likes to smoke so I crush in spurts letting the drill cool down in between.

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JKelleyLBI said:

Great thread containing everything you could possibly need on the subject:

https://www.homebrewtalk.com/f51/my-ugly-junk-corona-mill-station-90849/

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RunBikeBrew said:

Definitely check out that link. It has tons of great info.

I had to file down the surfaces on the "shank" to get the rotating plate to sit perpendicular. This sounds much more complicated than it actually was. In all, it only took about 10 minutes with a hand file. Also, I replaced the cotter pin with a machine screw and added washers to the two attachment screws (see link above). I added a hopper (5" stove pipe) and rigged my mill inside a couple of Homer buckets to control the dust.

With all these mods, my crush is excellent. My efficiency went up over 10% vs. store crush.

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