HomeRoast Digest


Topic: GC Cleaning (10 msgs / 216 lines)
1) From: Kevin
Does anyone have experience cleaning out a Gene Cafe? The GC works fine on
my first roast but sometimes on batch 2 and always on batch 3 I've noticed
the machine struggles to maintain a setting of 458F on the thermostat.  The
temp will drop as low as 441 and stay there resulting in baked beans (and
they don't compliment hot dogs).  I'm thinking maybe the temperature sensor,
chafe collector, intake register and exhaust needs to be cleaned.  Has any
one done this and if so, any guidance?
-- 
My home coffee roasting blog:http://homecoffeeroastblog.blogspot.com/Kevin
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2) From: Poutinen, Jay
To clean any parts you can put into your kitchen sink, use OxyClean.  Use very hot water.  The roasted on residue will wipe right off.
Jay

3) From: Coffee
I just knock out the chaff collector, clear any chaff from the drum,  
and make sure the air intakes on the bottom are clear.
-Peter
On May 6, 2008, at 10:57 AM, Kevin wrote:
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4) From: Kevin
any ideas on why the GC can't hold 458 on batches 2 and 3?
-- 
My home coffee roasting blog:http://homecoffeeroastblog.blogspot.com/Kevin
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5) From: Coffee
Do you clean out the chaff collector between each roast? It gets  
pretty full and would definitely restrict airflow if not cleaned.
-Peter
On May 6, 2008, at 11:04 AM, Kevin wrote:
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6) From: Kevin
Peter,
Come to think of it...I think I have been getting a bit lazy with my roasts
and haven't been emptying the chafe collector after each roast.  That's
probably it.  I'll clean out the exhaust and intake with compressed air (cpu
cleaner) and empty the chafe collector.
This little bit of laziness cost me some Costa Rica La Magnolia.  I didn't
ruin the roast, it's drinkable.  The batch 2 went to the start of 2nd crack
whereas batch 1 was stopped just after 1st crack.  I blended them together
but the brightness and floral aromatics of the bean were lost.  Let this be
a lesson not to get complacent and forget roasting fundamentals!
Kevin
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7) From: Coffee
Don't use the compressed air (which really isn't air) if it is  
flammable and your roaster is hot!! Check the can.
-Peter
On May 6, 2008, at 11:33 AM, Kevin wrote:
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8) From: Kevin
I planned on cleaning the GC with the compressed computer cleaner prior to
roasting.  the chemical is extremely volatile so if the GC is aired out for
a bit after cleaning I should be okay.  Hopefully it's just a matter of
emptying the chaff collector between roasts...I'll soak the chaff collector
tonight as well.  Thanks.
On 5/6/08, Poutinen, Jay  wrote:
<Snip>
-- 
My home coffee roasting blog:http://homecoffeeroastblog.blogspot.com/Kevin
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9) From: David Daeschler
Kevin, list,
<Snip>
I was going to use the "cans of air" computer cleaner to clean my
grinder until I read some of the warnings on the can.  It seems a lot of
"cans of air" contain chemicals designed to irritate your lungs and
other bad things.  I wasn't sure if any of the contaminants left a
residue or not, so I ended up getting a refillable aerosol spray can.
It has just enough force around 80 - 90 PSI to clean out my grinder
really well, and might also work for cleaning your GC.
You can fill it with a bike pump or compressor.
linkhttp://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber02- Dave
On Tue, 2008-05-06 at 15:22 -0400, Kevin wrote:
<Snip>
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10) From: John Despres
Kevin, you should actually clean in between every roast. At least I =
do... I cool in a vacuum/colander so the vac's right there. I vacuum the =
bottom air intake vents, I vacuum the hot air feed and, with the chaff =
collector removed, vacuum the exhaust port. Then I dump and vacuum the =
chaff collector and the drum. I do this between every roast and it takes =
more time to talk about it than it does to do it.
This should help. I'd suggest not using canned anything, air or =
otherwise. Often they are too cold, and given the temps the roaster gets =
to those changes in temp may stress the hardware even if you're blowing =
out the roaster after it's cooled.
Hope this helps.
John
Kevin wrote:
<Snip>
r,
<Snip>
<Snip>
-- =
John A C Despres
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