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Topic: - roasting for espresso (4 msgs / 81 lines)
1) From: Aaron Boothe
Hey,
I have been roasting on my HotTop B for a long time and have enjoyed it very
much.  I have come to the stage however, where I would like to start
roasting for espresso, but I do not really know how.
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a Full City (at least).  However, that is the extent of my knowledge.  Is
the entire roast stretched out?  Are there simply certain parts that are
stretched? Is there a general guide for how much time between 1st and 2nd
crack and EOR?
Your help is greatly appreciated.
Aaron
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2) From: Barry Luterman
Aaron this is the profile I use on my Hot top P for Monkey blend. I take it
20 seconds into 2 nd crack. It uses a fast ramp up and there is about 2 min
plus between first ans second crack.
  Used for Espresso Type 20 sec into 2nd crack
Segment    Time    Temp    Fan
1                    2        245        off
2                    1:30    291        off
3                    2:30    333        off
4                    1:30    351        off
5                    1:30    369        off
6                    2:00    392        2
7                    2:00    400        2
8                    3:00    405        2
On Sun, Mar 2, 2008 at 4:49 PM, Aaron Boothe  wrote:
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3) From: Hugh F
I roast Daterra Reserve in my HotTop P and see an indicated 212 C (414 F) before EOR without noticeable oil on the beans, not into rolling second crack. So a final stage into second crack at just 405 F is really puzzling. 
I thought the HotTop display readings were a bit wrong but consistent between different KN8828P's. I believe yours is an early "P", mine is less than a year old, maybe that makes the difference.
Are your temp readings from a thermocouple rather than the HotTop's display?
If so, could you possibly give some idea of the displayed temperature when you finish the roast, please?
I checked Tom's "roasting stages" page at :http://www.sweetmarias.com/roasting-VisualGuideV2.htmlI realise these temps won't directly compare with the HotTop though. I've also taken another look at Randy G's HotTop P review comparing his displayed temps with thermocouple readings but still can't quite match this up even allowing for that difference.
Thanks for your help - I'd be interested in trying this and others of the 3 profiles you posted on 1st March 2008 as it's taken me a LOT longer than I expected to adjust to using the "P" after running a KN8828D for 2 years or so.
Hugh
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4) From: Barry Luterman
Mine is an early P The chamber temps are probably different. I really don't
pay much attention to the chamber temps. I roast by smell and sound. I used
to roast using the Hot Top disposable filters. About a year ago I switched
to using a metal computor fan filter. The chamber temps changed
dramatically. However, there was no real change in the roasts and how they
acted. I will roast some Monkey next week and mark down the actual read
outs.
On Sun, Mar 2, 2008 at 8:31 PM, Hugh F  wrote:
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