HomeRoast Digest


Topic: How should I try to plan the cracks with i-Roast 2 ? (2 msgs / 50 lines)
1) From: Ton van Rijn
At first a Merry Christmas to you all.
My results with the i-Roast 2 are improving little by little, but I am 
still experimenting with different profiles. Most of the times I also 
can clearly hear the 1st and 2nd crack now.  I use a thermocouple with a 
digital multimeter  now so that I can see the temps.
What I would like to know however is, if there is a general consensus on 
the duration of the pause between the 1st and the 2nd crack. I don't 
mean exact numbers, but more generally spoken. Should it be rather long 
(for instance a few minutes) or rather short (around 1 minute or so) ?
Ton

2) From: raymanowen
I don't even remember where I put my thermocouple pyrometer. The last time =
I
had it out, I found the TV brew water was coming out about ten degrees too
cool, so I cleaned it out.
When I roast, I could try to match somebody else's numbers, which is
impossible, or listen for the cracks. Trying to do both would be
counterproductive for this guy with mental deficit and a heat gun.
You can get to First Crack more rapidly if you set the temperature up beyon=
d
400 F.
If you stay on the throttle and keep going up like a popper does, the first
beans to hit First will go thermonuclear and pass Starbucks on the way to
Oblivion before the main body catches up.
Some of the other beans, in a bit of a thermal shadow, will just be hitting
First. Reduce power, lower heat and let the stragglers catch up. There is n=
o
specific temperature for a Paisley roast. But I could show you how.
A  Five pound sample size will let you experiment on a single lot of coffee
to see how it cups best for you. I think every coffee lot has a sweet spot,
in addition to your roast preference. Different roasting, aging and brewing
methods means you better be sure just what you want to do with a 0.5 or 1
pound sample of coffee.
Cheers -RayO, aka Opa!
-- 
"When the theme hits the bass, I dance the Jig!" - -Virgil Fox at the Might=
y
Wichita (ex- NYC Paramount) WurliTzer- 1976


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