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- From: "Teghtmeyer, Suzanne R" <srt175f@smsu.edu>
- To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
- Subject: RE: [NAFEX] Pistachio Huller
- Date: Fri, 12 Mar 2004 09:15:42 -0600
Bill,
I found this description of a dehuller in one of my
books. -Suzi Woodruff, Jasper Guy. Tree
Nuts: Production, Processing, Products. Vol. 2. “Dehulling Pistachio Nuts” Abrasive
peeling machines were found suitable for dehulling
pistachio nuts both in the fresh state immediately after harvest, or after
drying in the hull. These machines consist of an upright cylinder coated on the
inside surface with an abrasive; the bottom of the cylinder is a rapidly
rotating disc, also coated with an abrasive. The material to be peeled is
thrown by centrifugal force of the rotating disc against the abrasive wall
surface, while a stream of water introduced on top of the cylinder through a
perforating ring, soaks the material and flushes the disintegrating hulls, etc.
to a catch basket. The product recovered form the abrasive treatment and
subsequent separation and drying needed no additional labor for cleaning and
sorting. These
are continuous peelers available equipped with pairs of carborundum
coated rolls. These machines may hold some promise when larger capacities make
continuous machines desirable; their suitability for dehulling
pistachio nuts has not been established, however. Freshly
harvested pistachio nuts are freed from their hulls in 1.5 minutes, and
complete dehulling of those which adhere more tightly
to the shells require about six minutes. The nuts are not damaged by the
abrasive treatment, but polishing and cleaning action take place so that the
shells become attractively light in color, as compared to those dehulled by any other method. <end> -----Original
Message----- When
I lived out in processor
used forced air to blow nuts against a
concrete wall, I wonder if a
simple small centrifical air blower would work for a Another
crazy idea...... I knew there an old farmer (born in 1896) who had made
his own puffed wheat using a steel
cylander, compressed air, and a quick
release lid. The puffed wheat blew into gunny sack. Might just work for
nuts with a sealed shell, and no impact damage. Del
Stubbs http://www.pinewoodforge.com ag zone2/3 >I
expect to hear dead silence but I have to ask. A backyard grower in New > >trees
hulled at a commercial processor, asked us in CRFG where he could >find
a potato peeler or anything else that would work to remove >recalcitrant
hulls from the nuts. I assume he means one of those commercial >potato
peelers, which would probably run into major money as well. Does >anyone
have a suggestion for something that would work? > >Bill
Grimes >wagrimes@sonic.net |
-
[NAFEX] Pistachio Huller,
William A. Grimes, 03/12/2004
- Re: [NAFEX] Pistachio Huller, Lon J. Rombough, 03/12/2004
- <Possible follow-up(s)>
- RE: [NAFEX] Pistachio Huller, del stubbs, 03/12/2004
- RE: [NAFEX] Pistachio Huller, Teghtmeyer, Suzanne R, 03/12/2004
-
RE: [NAFEX] Pistachio Huller,
Brungardt, Sam, 03/12/2004
-
Message not available
- RE: [NAFEX] Pistachio Huller, William A. Grimes, 03/12/2004
-
Message not available
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