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Topic: Chaff removal tip (4 msgs / 76 lines)
1) From: Mike McGinness
A difference I noticed between the roasts of the same beans John & I shipped
to each other was his had noticeably more chaff. Thought I'd share a
de-chaffing technique I stumbled on quite by accident. The secret weapon is
Tupperware!
I'd been using an old freezer container to dump the beans from the Rosto
after the cooling cycle. It's a tall about 8x4x5" size. (Has a slightly
melted lip from some mishap years ago... Debi let me have it:-) Anyway, it
worked better for pouring the beans into the pint canning jars than pouring
from a bowl. I noticed that chaff would stick to the inside of the
container. One day it hit me to take advantage of the static cling of the
Tupperware. Now I dump the roast into the container after the cooling cycle,
shake the beans around to dislodge stuck to bean chaff, then pour into a
second Tupperware container - pouring in front of a fan to blow loose chaff
away. The container no longer containing the beans will have chaff clinging
to the inside, I then blow it out. (This can be a challenge 'cuz it wants to
stick and blows back in your face! Compressed air solved this one...) Next
repeat the bean shake in the 2nd container, pour back to the first. Usually
still some chaff clinging and usually much less than the first cycle. Repeat
a couple times, depending on the bean, 'till no more chaff blows from
pouring in front of the fan or clings to the side of the container. Takes
about a minute and chaff is virtually reduced to nothing.
Off to get ready to leave for NASCORE...
MM;-)
Variable Variac Rockin' Rosto Roasting in Vancouver, WA USA
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2) From: John
The residue chaff is a MAJOR problem with the Hottop. I have begun doing
a pour from one bowl into another, outside of course. The chaff
collection tray comes out filled - but the drum retains about 30% of the
total. I guess I didn't "sift" the Hueheu.  I thought for a long time
that the chaff introduced a salty taste - but I was challenged to
collect some in a cup and make a tea of it and give it a taste - almost
no taste but not salty.  So now my only concern is that chaff isn't
really a great thing for the grinder.
I guess I'll give some design consideration to the chaff removal system
(or lack therein).  
Thanks for the procedure Mike.
John - sippin a ISH (down to six pounds)
On Sat, 2002-09-21 at 11:03, Mike McGinness wrote:
<Snip>
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3) From: M.G.Rich
 > I thought for a long time
<Snip>
Hmm ... sounds like some kinda CSA initiation hazing ritual. 
M.G. Rich, sticking by his beans
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4) From: John
Well considering the fact that it was HV correcting my misconception
from the Netherlands, It could have been :))
On Sat, 2002-09-21 at 12:40, M.G.Rich wrote:
<Snip>
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