HomeRoast Digest


Topic: Roaster Options (7 msgs / 136 lines)
1) From: Greg's Gmail Address
I built a gas grill system recently (Christmas-ish 2008) and love it.  The
build was pretty easy, fairly cheap (not RK drum, but it still is working
fine) and the quality of my roasts are OK by me.  I have not figured out how
to get an easy system for bean mass temperature, so I roast by gut instinct
and audible clues - so far no real screwups and lots of awesome batches.  ~1
lb is my usual batch size, and have done double that a few times - never
more than ~2 lbs, though (even though the drum an d grill BTUs can proabably
handle up to 4-5 lbs).
I love cooking outdoors, though, so this is just as much about me having fun
as it is making good coffee.  Friends and family are hooked and pay me cost+
for my beans, too.
I researched SM website (in Tom's link below) and others for suggestions and
tips on constructing the roasting system and rotating motors, by the way.  I
currently use a portable hand drill (w/ low speed gear) rahter than a fancy
electric motor, etc.  To get an even roast you do have to get the RPMs
between 30 and 60.  For cooling I use a shop-vac and bucket w/ colander
system.  My tip here is to find or craft a vacuum hose that can withstand
the heat mass of 1-2 lbs of 300+ degree F beans (mine has melted a few times
and is getting shorter and shorter).
Anyway, I had a lot of fun making it and even more fun using it.  And of
course drinking the rewards is great.
Greg Gearheart
On Wed, Apr 15, 2009 at 12:03 PM, Tom Ulmer  wrote:
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2) From: Hank Perkins
Sorry about the multiple posts.  I did not think I was getting through.
On Wed, Apr 15, 2009 at 2:03 PM, Tom Ulmer  wrote:
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3) From: Hank Perkins
Mike,
I love my Hot Top but now I have several people I am roasting for.  If I do
the grill thing, it will be dedicated and I need more volume.  3 pounds at
once is better than 3-4 hours with the Hot Top. I did the Popcorn and Fresh
Roast before I got the Hot Top.  There is no question thermocouples and
digital timers are required to do the grill thing properly.  What kind of
drum did you use?  Ultimately, if I do the grill thing I hope to make it PID
controlled.
Hank
On Wed, Apr 15, 2009 at 4:18 PM, Mike Koenig  wrote:
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4) From: Hank Perkins
Well, I got engineers that work for me that can handle the programming, a
machine shop that we do tons of business with, and my best friend is a
certified gas guy who does blacksmithing as a hobby.  So, I come up with the
concept, they implement.  Should be fun.  Thinking about not using a
rotisserie but a drive shaft to allow one end to be open.  This allows the
thermocouple to go in the drum, and lets me sample during roasting.  I know
I can build a unit with commercial capabilities without spending 10 grand.
On Wed, Apr 15, 2009 at 4:54 PM, Mike Koenig  wrote:
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5) From: Brian Kamnetz
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SWQ9NzgyMA==

6) From: Michael Dhabolt
Hank,
Sounds like an interesting project.  If you would be interested in
documenting your efforts as you implement your plans, I'm sure a bunch
of us will be following the project with a lot of interest.  A good
place for real in-depth documentation (beyond what you  post here)
would be a thread at this address:http://homeroasters.org/php/forum/viewforum.php?forum_id2Mike (just plain)
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7) From: Hank Perkins
Talked with the engineers today, they said no big deal on learning to
program the PID.  Hope to be able to take this to computer control for ties
and temps.  it will be a work in progress.
On Wed, Apr 15, 2009 at 2:19 PM, Greg's Gmail Address wrote:
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