Based on conversations here, and some of my own research I made up 200 lbs of roach food. I'm going to have it available when I sell my orange head roaches at the expo I'll be vending at.
It took forever to grind up that much food
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I have so many roaches I go through over a lb a day. So 200 lbs isn't even a years supply for me. But I'm just going to have it at the expo. Maybe if I actually buy a mill it would be easier to mail stuff. I used my Nutrabullet to grind it all up and it took forever. To be honest I was surprised it didn't burn up the Nutrabullet, it's not intended to grind up dry stuff.
Would a malt mill work? They are relatively cheap at a homebrew store and are designed to crush 50lb bags of malt. You can run them manually or hook a drill up to them for bigger jobs.
Not sure Cooper, I'll have to do a bit of research tonight. A mill I was looking at was about $250 and figured I might invest in one if sales go well at the expo. But if the malt mill is cheaper and would work, it might be worth buying one.
Yeah the malt mill is cheaper. This is what I was thinking of http://www.austinhomebrew.com/Barley-Crusher-Grain-Mill-7-lb-Hopper_p_5255.html I use it for home brewing. You can get a version with a larger hopper if needed. They have adjustable rollers so you can fine tune the crush size. I'm not sure what specs you need but it might do the trick.
Did a bit of research, the really nice ones have adjustable rollers, but they are pretty expensive. However I did find a motorized grinder that holds 2.2 lbs of material for about $150. It has gotten pretty good reviews on Amazon, I'll probably order one eventually. My orange head colony eats well over 1 lb of food a day. So the grinder to would get used a lot and would be much quicker/easier than my Nutrabullet.