Oat Huller

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gjr
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I'm looking for information on building a small scale oat huller.

 

I have read that heating the oats to 140ºF makes it easier to get the hulls off. Commercial hullers drop the oats onto an impeller that throws them against the wall of a container to remove the hulls. My Dad said that when he was growing up they had an oat huller to make feed for the baby pigs.  It has been so long and he was pretty young so he does not remember how it worked.

 

Thanks

 

Greg

gjr
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oat dehullers

No word from Gene, but what I have found is that there are two types of oat dehullers that might be practical for home use. There is an impeller type that throws the oats against a housing to knock the hull off. It seems like these work best if the oats have been heated to 180F for 90 minutes. Back of the envelope calculations show that the rim speed needs to be about 2500 feet per minute. A disk with a 1 foot diameter would have to turn about 850 rpm.  There is a patent from the '30s that shows a machine of this type. http://www.freepatentsonline.com/1788686.pdf

 

The other is an older technology. The oats are rolled between two mill stones. there is a description of the stones at http://www.angelfire.com/journal/pondlilymill/flory2.html .

 

I think that the spinning disk type is more likely to  be useful on a home scale.

 

Greg

Glenn
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Threshing Oats

Have you tried the original method?  You know, beating them with flails on a paved threshing floor and then winnowing on a breezy day or the aid of a fan?

Glenn, Marrowstone Island

thomas.e.beeler
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Hulling Small Grains

 A fellow named Gene Logsdon has recently published the second edition of his book,  'Small-Scale Grain Raising: An Organic Guide to Growing, Processing, and Using Nutritious Whole Grains for Home Gardeners and Local Farmers'.  If there's an affordable method of threshing and dehulling, it's probably described in there.     In Carol Deppe's book,  'The Resilient Gardener',  she mentions that she's tried many different grains and is still looking for a good way to thresh oats on a small scale.  

gjr
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Small scale Grain Raising

I have the first edition of Gene Logsden's book and he touches on the subject, but does not know of any home scale equipment. I should send him an email. Steaming the oats and rolling them seems like it would make the hulls pop off, but I have not tried it.

 

Greg

sadie
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Good subject, I'm another in

Good subject, I'm another in the UK who has a pressure canner on my acquisition list.

One idea is - find someone who has a need to travel between the continents and ask them to bring one? I'd offer to pay the excess baggage and so on. I don't know many who get on the planes but might find someone at some point, I have friends and family over there.

Another idea - I used to use autoclaves in biology labs to kill potentially harmful bacteria and sterlize stuff. You can get special autoclave tape that tells you by changing colour when it has been subjected to high temp for > 15 minutes. Could you find a lab that would let you borrow an autoclave to experiment with?
pass4sure 70-351

Cathy McGuire
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Apparently hulling oats is hard...

I've looked into this too, and what I can find on the web says hulling oats is harder than other grains, but there is a species of hull-less oats that you can grow. That's not what the locals are growing, so I'm back to looking for a huller... if I find anything, I'll post it here...