HomeRoast Digest


Topic: My first decaf (3 msgs / 91 lines)
1) From: Martina Augustinova
This is a multi-part message in MIME format.
Hi everyone,
I've just tried to roast my first decaf beans with half the screen
covered with a silver foil as recommended instead of leaving old chaff
in. The profile I used is the same I use for normal beans.
 
3 min - 160 F
3 min - 390 F
6 min - 415 F (stop usually with 2 minutes remaining)
 
It seems to me that the roast went faster than usual - have you tried to
roast decaf without either leaving the chaff in or partly covering the
screen and with what results - meaning in a normal way? I wonder whether
the fist and second cracks would be so much delayed without blocking the
chaff collector. With blocking the screen they happened about 2 minutes
earlier with the decaf/partly covered screen than with normal roast.
 
Thanks,
Regards,
Martina 

2) From: David Echelbarger
This is a multi-part message in MIME format.
I think you need to block the collector.  The only failed roasts I had in
the I-Roast when I was using it was from a chaff-less bean and decaf.  Decaf
will roast faster.  Try reducing how much you use --  I dropped from 150
grams to 130 when doing decaf.  That helps.  
From: homeroast-admin
[mailto:homeroast-admin] On Behalf Of Martina
Augustinova
Sent: Thursday, March 23, 2006 7:12 AM
To: homeroast
Subject: +My first decaf
Hi everyone,
I've just tried to roast my first decaf beans with half the screen covered
with a silver foil as recommended instead of leaving old chaff in. The
profile I used is the same I use for normal beans.
3 min - 160 F
3 min - 390 F
6 min - 415 F (stop usually with 2 minutes remaining)
It seems to me that the roast went faster than usual - have you tried to
roast decaf without either leaving the chaff in or partly covering the
screen and with what results - meaning in a normal way? I wonder whether the
fist and second cracks would be so much delayed without blocking the chaff
collector. With blocking the screen they happened about 2 minutes earlier
with the decaf/partly covered screen than with normal roast.
Thanks,
Regards,
Martina 

3) From: Demian Ebert
I've done it both ways (blocked half the chaff collector, and open) and
haven't really noticed much of a difference in my iRoast v1. I think it
comes down to the differences in iRoasts and how each one tends to function=
.
I'd recommend you try a roast w/o covering the screen. If it seems slow, yo=
u
can always put something over the vent from the outside during the roast to
restrict the airflow. For example, a piece of foil can be crimped around th=
e
handle to the chamber then folded up over the top in a flap kind of
arrangement. By raising and lowering this flap you can alter airflow throug=
h
the roast chamber during the roast. Careful though, it gets hot up there. O=
r
wrap some foil around a hotpad or towel and hold that over part of the
vents. If you've got a thermocouple in the roast chamber, you'll be able to
see the temperatures change in response to what you do to change air flow.
That's my nickel's worth this AM.
Demian
On 3/23/06, David Echelbarger  wrote:
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