[Homeroast] Roasting Jimma

Tom Ulmer tom at transtate.us
Mon Nov 8 07:12:07 CST 2010

Jimma has the most prolific first crack of any coffee I can remember
roasting and it rolls into first hard. I was fortunate in reading here on
the list that you had to hit the brakes hard and used the fan in the midst
of the rolling first. I keep a small turbo fan near my roasting assembly.
Agreed that too high of a temperature at first and you lose what makes this
one special in my opinion. 

-----Original Message-----
From: homeroast-bounces at lists.sweetmariascoffee.com
[mailto:homeroast-bounces at lists.sweetmariascoffee.com] On Behalf Of Charlie
Sent: Sunday, November 07, 2010 10:10 PM
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todiscuss home coffee roasting. There are rules for this list
Subject: Re: [Homeroast] Roasting Jimma

Don't feel bad. I've been roasting coffee for 35+ years and I went through
50 lbs of this before I could get the roast I was looking for,with all the
special flavors I'd read about in reviews. I watched it race through first
crack right into second even using my usual DP Ethiopian profile that takes
into account the delicate nature of the extra dryness of a whole dried
coffee. I kept roasting with less and less heat as first crack approached,
and beyond, but only got less overoasted FC++, then FC+, then FC-finally-the
city+ roast I wanted. Mostly I was roasting 5 lb batched in my RK drum/gas
grill, lowering the gas more before 1st started, then opening the grill lid
a bit after 1st started, then opening the lid all the way and leaving it
open as 1st started and cutting the gas until end of roast-that worked. In
my Behmore it went the same way. Best roast was P1 until 1st started, then
opened the door all the way-good cracking for 2 minutes hit cool.
 After a few days rest a sublime cup. Hard to compare with Misty Valley
which was much easier to roast and very fruit forward in your face powerful,
but very very balanced mix of fruits and more, very well liked by everyone
who tried it. I wish I could get more now that I finally can roast it.


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