HomeRoast Digest


Topic: Turbo Crazy Observations. Long! (3 msgs / 122 lines)
1) From: Ryuji Suzuki -- JF7WEX
From: Bob at classicalcup 
Subject: +Turbo Crazy Observations. Long!
Date: Tue, 18 Jun 2002 20:43:18 -0700 (PDT)
<Snip>
To be fair, Turbo part is me, but other people in the list tried the
Stir Crazy part (without the Turbo Oven) first. I did the work to put
them together, but on the idea side, I deserve a half credit.
Anyway, I was a bit worried about how accessible it is to others
because it's definitely not an idiot home roaster, and requires
regular amount of try and error to get a good handle on the apparatus.
<Snip>
This is exactly how I have been doing. It seems that I will need a
ventilation port if I insert the tube (cake ring). If you attach a
metal net like a tea strainer, you can make a nice silver skin
collector.
<Snip>
I use 1/8" armature wire from art supply store. It is made from
aluminum but withstands the roasting temperature well. As batch size
increases, this extra stirrer seems to improve roast evenness.  I like
beans like Mandheling and Harar, and therefore I'm not (and I can't
be) very ultra-super picky about roast evenness. So this extra stirrer
is more to get closer to perfection, and as a hot abstract art, and
unnecessary for 350g batches unless you are super picky about evenness
(why you should be?).
<Snip>
<Snip>
Preheating I do for consistency across batches also helps to maintain
my shorter roasting time. That is, I only have to wait for the
apparatus to cool to 150C before starting second session if I preheat
to 150C all the time. Also, at this point, ambient air temperature has
little effect and I never consider it as a roasting factor.  You might
not need to do this if you have two separate setups to alternate
between. But maybe I should try your roasting profile next time
without preheating.
<Snip>
Is it because you intentionally roast unevenly?  (I sometimes pour in
beans of half the batch size first, and then the second half 90
seconds later for this purpose. Also, when I'm blending, provided I
collected enough data from previous separate sessions, I can start
with the longest roasting bean, and add others as time difference
elapses. It's analogous to a typical college dorm life, when you have
a half box linguine and one full box of spaghetti to cook together.
Anyway, this is something Alpenroaest can't do :-)
<Snip>
I recall there are two models of Stir Crazy. One is 6qt and another is
8qt. Do you know which one is yours? If yours is 8qt, this might be
the difference but otherwise I see no reason why my larger batch sizes
tend to be less even while yours are stellar roasts, except your Stir
Crazy power on-off schedule.
<Snip>
Thanks for your detailed insights!
Ryuji
--
Ryuji Suzuki
"Don't play what's there, play what's not there." (Miles Davis)
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2) From: Ryuji Suzuki -- JF7WEX
From: europachris (Chris Beck)
Subject: +RE: +Turbo Crazy Observations.  Long!
Date: Wed, 19 Jun 2002 09:03:03 -0400
<Snip>
  mount a small gear motor under the bowl, and run a shaft up inside
  the Turbo for a stir rod?  Take a round cake pan, drill a hole in
  the middle, and place over the center shaft, and then put a stir
  crazy style rod on the shaft.  You'd need to figure how to mount the
  motor (maybe a board base under the whole unit) and how to construct
  the stirring arrangement, but it would basically be like a stovetop
  popcorn popper with a turbo oven head on it.
Like I said in my previous posts, this idea is simple and very
workable, but I would like to have a separate bowl to avoid smell
contamination. (Maybe $70 for another Turbo Oven is a cheap purchase
for many people here.) I've eaten almost anything from cow's tongue to
pig's ear, but I'm yet to try coffee flavored salmon fillet. (The real
trouble is that oil from salmon will make smoke during roasting. Before=
Stir Crazy realized, I kept a bottle of degreaser and sponge by my
Turbo Oven.)
<Snip>
  tile bit?) and a drill press.  Just be slow and easy at it.
Doing it in water may also help.
<Snip>
  don't think that would be tough to do.  Maybe with the right sized
  cake pan, the chaff would fall down between it and the outside of
  the pyrex bowl?
Yes, especially if the cake pan is lifted from the bottom of the bowl,
this will work out nicely.
--
Ryuji Suzuki
"You're crazy man, there's no one here but me and my machines!" (Neil Y=
oung)
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3) From: Ryuji Suzuki -- JF7WEX
From: Simpson 
Subject: RE: +Turbo Crazy Observations. Long!
Date: Thu, 20 Jun 2002 22:40:17 -0400
<Snip>
That's where I'm looking at, though I have no urge to do that too
soon.  I had to bend agitating wire slightly to minimize the motor
stopping because of bean stuck between the wire and the plate (either
bottom or edge). With stronger motor, we shouldn't have to worry about
this small technical nuisance. Since I have added my bigger agitator,
evenness improved but the motor is just like before, and can't handle
stuck beans too well, though I have more control to minimize it.
--
Ryuji Suzuki
"I'll hurt my lips." (George Harrison, when asked why he doesn't smile)
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