HomeRoast Digest


Topic: Gene Cafe Cleaning (10 msgs / 181 lines)
1) From: Frank Parth
About a year ago my GC was just not heating up properly. I contacted Tom Skaling, and he suggested that the outflow 
filter was probably clogged. He suggested boiling it in hot water to remove all the gunk that accumulates in there. It 
worked perfectly.
Now I'm wondering about the chamber itself. It's gotten pretty gunked up over the hundreds of pounds of coffee I've 
roasted, and simple cleaning won't work.
Since it's heat resistant glass (Pyrex?), plastic, and a couple of screws, would it hurt to boil it also? Would that 
remove the brown crud on the inside?
Frank Parth
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2) From: Coffee
Since we roast at 450-ish degrees and boiling is 212* I don't imagine that heat would be a problem... Can't speak to the water though.
-Peter
*At standard pressure
On May 30, 2010, at 9:37 AM, Frank Parth wrote:
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3) From: Steven Van Dyke
I use SimpleGreen on a paper towel to clean the inside of my chamber.
Oh yeah - and the ever-indulgent wife's dainty little hand that will 
actually *fit* into there.  If she's not available I push it around 
as best I can with a chopstick.
At 11:37 AM 5/30/2010, you wrote:
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4) From: Phil Palmintere
By outflow filter do you mean the removable chaff collector? Or something
else?
I've been soaking the chamber in the kitchen sink with diswashing
liquid/water & using a bottle brush inside.
I also use latex gloves on my hands to create an imperfect gasket over the
two end holes... that way I can have soapy water inside & literally shake it
without the liquid leaking out.  
I have only roasted about 15 pounds with the GC so I am still a novice.
phil
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5) From: John A C Despres
Hi, Frank. Ain't the Gene Cafe a grand machine?
Cleaning with Simple Green will work very well. If there are stubborn
stains, a little soaking will help.
What "outflow filter"? As routine maintenance, you should vacuum out your
chaff collector after every roast, vacuum the intake port on the bottom
right of the roaster. Then every 20 roasts or so, disassemble the chaff
collector and scrub it out.
Once you get the chamber cleaned out, you'll notice a difference in the
flavor of your fresh roasted coffee.
Hope this helps.
John
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6) From: Frank Parth
Tried it. Didn't work. Simple Green didn't even touch it so I'm looking for something stronger. But thanks for the idea.
Frank
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7) From: Frank Parth
Yup, the removable chaff collector.
I've been using my ShopVac to clean it out and this wasn't enough. Tom Skaling is the go-to person for GC 
questionsbut I thought I'd get the experience of the list.
My friends on Tortola bought a GC last year based on my recommendation. The chaff collector was totally different than 
on my machine, so apparently the design has changed. My chaff collector is relatively small, theirs is much large 
andrises up.
Frank
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8) From: Frank Parth
Hi, John.
Simple Green didn't even touch the crud inside the chamber. That's why I'm looking for something more assertive.
By outflow filter I meant chaff collector (just got back from a trip to Saudi Arabia and my mind isn't back in a 
California time zone yet. Sorry). I use a ShopVac to suck out the chaff regularly, but there's still buildup that 
vacuuming didn't remove. So based on Skaling's recommendation I boiled it for awhile and that worked perfectly.
Frank
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9) From: raymanowen
The roaster parts can certainly withstand temperatures higher than boiling
water, so mix a solution of Simple Green in your pressure cooker.  Soak the
parts for an extended period at higher temperature in it.  Simple Green =
stronger when hotter  Try Ethyl alcohol or Acetone to dissolve the gunk,
too.
Water is an easy rinse for any of these cleaners and solvents.  A swab with
Simple Green solution after every few roasts would prevent the miasma of
oils and chaff from building up on the roasting surfaces.  Then you won't
have to excuse the trash buildup as "seasoning."
Air is maybe 0.9999 of the bean's contact with heat in any roaster, plus
some IR in a drum. The air and the IR don't "season," so the gunk buildup
must have its own following. Po' beans.
Cheers, Mabuhay -RayO, aka Opa!
Got Grinder?
On Mon, May 31, 2010 at 8:26 AM, Frank Parth  wrote:
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10) From: Frank Parth
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Good points, Opa,
I'll try it.
Frank Parth
Also AKA Opa
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