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Topic: Odd Batch and 'Instant Coffee' (3 msgs / 89 lines)
1) From: Jason Brooks
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Just finished my weekly roasting.  4 batches, but the third was a bit
curious.  It was the end of my Colombia Perros Bravos de Huila 3 star.
My guess is that it's about 60 grams final weight, whereas I usually
have around 100-110 grams final weight.  During the roast, the temp
progression really slowed after the 350F point.  It took a good long
while to get to 400F, where my target was 435F.  I stepped out of the
workshop for a moment and don't clearly recall a crack.
In the end, after I dumped them and they cooled a bit, I did the test
batch.  Popped one in a chewed.  First time I'd done that and the flavor
was great.  Very reminiscent of a nice stout.  All in all, I think it'll
be a good batch.  Had me wondering though.
Jason
- --
Jason Brooks
jbrookshttp://javajeb.wordpress.com- -------------------------------
Enjoying good coffee in the Heart of Virginia
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2) From: Brian Kamnetz
Jason,
Do you use an air roaster? If so, smaller batches heat up much more
slowly. In fact, if roasts are going faster than you want them to, the
standard "fix" is to roast less at a time. Conversely, if you want a
roast to go faster, the standard "fix" is to roast more at a time.
Brian
On Sun, Nov 16, 2008 at 6:56 PM, Jason Brooks  wrote:
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3) From: Jason Brooks
Yep, hot air popper.  The final mass of the Colombia was 72 grams and the
temp rise between 350 and 400 was extremely slow.  I brewed it all in a
Chemex this morning.  Besides being a bit strong, the cup was nice.  The
aged cup in my Nisan/Themos cup was very nice and the harshness of the
stronger brew was gone.
May be some time for playing in the near future.  One thing I've yet to
concretely quantify is my pre-roast batch.  With some careful calculations,
I might be able to find the right mass.  Assuming a beginning mass of 90
grams, I have a slow baseline.  I normally have a finished roast mass around
100 grams, give or take.  So, saying 104g finished, that's 130g start.  So,
there's my window.  Maybe 5g steps?
Thoughts? I have a pound to roast for a friend this Thursday.  No planned
roasting until then, so maybe I'll do a more precise batch by batch
pre-weigh in.
Jason
On Sun, Nov 16, 2008 at 8:26 PM, Brian Kamnetz  wrote:
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Jason Brooks
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