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Topic: Did I stall this roast? (3 msgs / 65 lines)
1) From: Bill
I put a TC into my BM to watch temps climb during the roast.  I did three
roasts tonight, Sulawesi Toraja, Nicaragua Pacamara PB, and Ethiopia WP
Koratie.
My typical action is that I back my HG down around 1st crack.  The Sulawesi
was headed for FC+, so I turned the heat down at about 1 minute after the
begininng of 1st crack.  no problems with roast progression.
The Koratie was headed for C, so I turned it down at 380.  again, no
problems.
The Nicaragua was headed for C+, so I turned it down at 385.  1st crack was
pretty indistinct with this one, but at about 394, it started to back-track.
 It bounced between 393 and 394, then held solidly on 393, then went back to
394, then started to go back up again.
Would this be considered stalling a roast?  Is there any way to know if this
might happen (this is a pretty standard profile I have).  Is this just
something that I need to experience with every bean?  Or is it just
something that I shouldn't worry about?
Any thoughts would be appreciated.
bill in wyo
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2) From: raymanowen
The orientation of the TC in the [roasting] process causes variations in the
temperature indicated.
Need proof? Get two of the digital TC meters and use them both on the same
roast. They will not read the same, even if you put new batteries in both
meters. Even with the two TC's fastened together, they won't read the same
numbers. Close but no cigar.
The IR meter is a good measuring device. Aim it at unobstructed beans
because it will read exactly the targeted surface, not interior beans. Get
used to one measuring device, because each tells its own lie. Multiple lies
generate grief if you start believing one over another.
Cheers, Mabuhay -RayO, aka Opa!
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3) From: Jim Gundlach
Bill,
      I would not worry about it.   I've had stalls for up to a minute  
with no noticeable damage to the coffee.   Might not have been quite  
as good as it could have been but not a real problem.
        pecan jim
On Aug 21, 2008, at 10:22 PM, Bill wrote:
<Snip>
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