From: Bob at classicalcup
Subject: +Turbo Crazy Observations. Long!
Date: Tue, 18 Jun 2002 20:43:18 -0700 (PDT)
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.
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
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?).
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
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 :-)
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.
Thanks for your detailed insights!
"Don't play what's there, play what's not there." (Miles Davis)
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