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Topic: Behmor + IMV => WEIRD LIGHT ROAST ??? (74 lines)
1) From: David Morgenlender
I recently roasted Ethiopia Organic Idido Misty Valley DP from 9/2006 (I know
it's old!).  I roasted some of this a few months ago & it was great.  A couple
of weeks ago, before going on vacation, I roasted some of this in my Behmor to
bring with me.
I roasted 340g.  I used the settings I use most ... 1 lb, P2, increasing roast
time to max. pre-roast (23:30).  I was aiming for C+.  Based upon previous
roasts, I expected 1st crack at about 17:00.  I heard nothing resembling a crack
sound until 17:15, which actually sounded more like 2nd than 1st.  I opened the
door a crack to see if there was any smoke & there was none.  Before I know it,
I hear a rolling 2nd crack & quickly hit cool at 18:30.  By this time the roast
was very smokey & there were some sparks from burning chaff, which lasted a few
minutes into the cooling cycle ... fortunately there was no fire that I could
detect.  
The beans came out with no chaff that I could detect whatsoever.  But they
looked VERY light for a roast which seemed to be at least an FC+ ... they even
looked a little light for a C+!  Then while on vacation, I tried brewing this in
my fairly new Bistro Mug Press (which I like a lot!).  First off, the beans had
hardly outgassed & barely had an aroma (which was at least coffee-like).  I knew
there was a problem as soon as water hit the grounds ... the brew looked
incredibly light & weak ... & weak is exactly how it tasted ... what taste there
was was ok, but there was barely any.
This was the first roast of the session.  I had done 4 roasts since the previous
cleaning cycle, one of which was a decaf.  The roaster had been vacuumed out
before this session.
Any idea what could have happened???  (Fortunately, I was able to come up with
enough beans from a previous roast session, which I had brought along just in
case!  Definitely beyond prime time, but still reasonably good.)
BTW, I used this profile, including almost the exact same amount of beans, in 3
roasts of the previous session without running into these problems:
- Nicaragua COE #3 - El Cipres 9/2006:  Goal was C, which I think I hit.  First
crack was very quiet, but it last from about 16:45 to about 18:02, when I hit
COOL.  After 2 days rest this was very good.  But after that it was
disappointing ... just an ordinary cup of coffee (i.e. still much better than
Starbucks :) ), but none of the special flavors.
- El Salvador PN Las Ranas WP DECAF 1/2007: Goal was C+ - Vienna.  I think I hit
FC - FC+, more or less.  1st crack was 15:18-18:30 (much longer 1st crack than
usual).  At 19:20 I hit COOL - darker beans, pungent aroma, no smoke.  Then a
minute or so into the cooling cycle I get a rolling 2nd crack!!!  I opened the
door & after awhile 2nd disappeared.  The beans look good, but I haven't tried
them, unfortunately.
- Kenya AA Auction Lot 434 - Kithungururu 8/2006:  I had decided to pretty much
not buy any more Kenya beans, even after reducing my stash.  I just wasn't
getting a roast that I liked.  To me Kenya beans seemed very finicky.  This time
I really nailed it!  Absolutely fantastic roast!  At 1 day rest brewed in my
Technivorm, it was delicious although needed more rest to smooth things out.
<Snip>
goal was C+, which I hit.  1st crack 15:35-almost 17:35.  Hit COOL at 17:37:
dark beans & pungent aroma.  
Do you have any ideas why the IMV roast turned out the way it did?  (Any idea
why the El Cipres went downhill fast after 2 days of rest?)
Thanks for your help!
Dave
=======================================================
Dave Morgenlender
e-mail: dmorgen
=======================================================
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