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Topic: my espresso roast profile, and results. how is it? (42 lines)
1) From: Leo Zick
This is a multi-part message in MIME format.
well, made an attempt to extend my roast today. using my toastmaster, a fan,
a chopstick, and turning it on and off allows me to control temp, well,
within ~30 degrees. its difficult to maintain a tighter delta T with this
method since turning the switch on each time starts the internal fan but the
heating element is still warming up, so this drops the temp ~10degF, then
causes a rapid temp gain.  either way, its staying within my 'profile
limits'.
 
let popper warm up to 300, add beans, start timer.  it takes around 20
seconds to get back up to 300F.
 
1st roast:
minutes 0-4: 310-350F
minutes 4-6: 350-375F
minutes 6-8: 375-400F
minutes 8-12: 400-440F
 
2nd roast:
minutes 0-4: 310-350F
minutes 4-8: 350-400F
minutes 8-12: 400-440F  (got to ~450 but i stopped it)
 
immediately dump into colander, then put fan directly over.  cools to the
touch in under a minute.
 
the first roast had better temp control, i guess b/c the popper was cold
when starting.  i couldnt keep a 25degF differential during minutes 4-6 on
the 2nd roast, so i let it swing a bit higher and joined it with minutes
6-8.
 
this is prolly my 6th roast, so i have a lot to learn still..  sounds were
interesting - first crack started around 340-350, and was really slow, and
extended into the beginning of 2nd crack, which started around 430?  it
didnt sound like it went all the way through 2nd crack when i stopped it.
 
so, am i on target?  i can attach a pic if its allowed, or just link to one.
 
thx :)


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