HomeRoast Digest


Topic: Bean Cooler / Chaff Removal (7 msgs / 194 lines)
1) From: Larry Dorman
Does anyone have any good plans for something I can use to
simultaneously cool my beans and deal (remove) the chaff?  I've
traditionally dumped my beans on elevated cookie sheets with a fan
blowing over them for initial cooling and then use a pair of colanders
to dump the beans back and forth in front of the fan for further
cooling and chaff removal.  However, I'm moving my roasting setup into
my garage and this process is too messy...  I'd like to keep the chaff
more contained where I can get it with my shop vac.
I'm fairly handy with projects, so building something won't be a
problem. The real issue would be that I don't have much in the way of
a budget for the project...  Thanks for any input!
LarryD
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2) From: kevin creason
I'm currently using a giant tamale steamer pot, pile of ice, and a shop vac.
In the bottom section of the pot I cut a hole to put in the hose from my
shop vac. Ice goes in the bottom of the pan, and the screen sits above the
ice and the hole. The beans get dumped on the screen and the shop vac draws
air down through the beans while I stir them with a metal scoop. This knocks
chaff loose which mostly gets sucked into the shop vac.
The cubes cool the hot air from the beans (and melt in the process) and
prevent the plastic shop vac from catching on fire.
It's just another kind of mess, but slightly easier to contain mess.
I've been working on a different method but it isn't finished.
I've got a metal trash can with an attic fan mounted to the lid. I cut a
hole in the lid above the fan where I will set a perforated pot like the
steam pot. The fan pulls air through the beans and grabs the chaff blowing
it into the can. The can will have a perforated side (much smaller so as to
keep the chaff in the can) to let the hot air escape. The attic fan is rated
for about 2000 CFM, but I'm not really sure this enough. I think the shop
vac is more than twice this and it works REALLY well at cooling the beans
down, even when ambient temperature is in the 90s.
-Kevin
/* Never argue with an idiot. They drag you down to their level and beat you
with experience. */
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On Fri, Dec 18, 2009 at 2:14 PM, Larry Dorman  wrote:
<Snip>
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3) From: Brian Kamnetz
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4) From: Steven Van Dyke
Larry,
Pretty good and simple:  Take a bucket with a lid, a colander (the 
kind without too many holes), and a shop vac.
Cut a hole in the bucket's lid to fit the colander.
Drill a hole about 1/3 up from the bottom for the shop vac hose.
To use, turn on the shop vac, dump the beans in the colander and 
stir. A unit like this will cool a pound of beans in a very few minutes.
*CAUTION* - the initial heat can warp / distort / outright melt the 
shop vac hose so keep an eye on it.  If you can rig something heat 
resistant it's better.
At 02:14 PM 12/18/2009, you wrote:
<Snip>
Enjoy!
Steve:->
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5) From: Yakster
What I did before Behmor was pair the steamer basket for a double boiler
(you know, stainless steel insert with a bunch of holes in the bottom) that
I picked up at a thrift store and found that it fit snugly in a plastic
canister I'd bought at Smart and Final years ago.  I took a box cutter and
cut a crude hole near the bottom of the side that took my shop vac hose.
I'd dump the popper roast into the steamer basket and turn on the shop vac.
The beans were cool in about 30 seconds and it did remove some of the
chaff.  More if you stirred.  Look for JavaCool-CRC for a commercial
version.
I liked that the popcorn popper fit inside the container for storage.
Someone sells these setups, but it was pretty easy  piece together,
especially for someone like me who has a bad habit of buying parts and
pieces at thrift stores with hopes of making something out of them.
I see that while I'm writing this Steven advises the same method.
For the Behmor, I found a mesh letter tray at a thrift store (shaped to fit
over the top of a cubicle wall, I think) that I was going to bend into a
cylinder to make into a BBQ roaster, but I found that it fits and stand up
in front of the Behmor sitting on top of the open door.  Now after about a
minute or two, I open the door of the Behmor and put this in front to catch
the flying Chaff (sometimes putting my bean pan (aluminum pan I use to weigh
and cull my beans) over the top to keep the chaff from escaping that way).
There's a hole cut in my Behmor chaff screen to give better bean visibility
that the chaff flies out of.  When the Behmor chaff tray is cool enough, I
pull it out completely and just use the letter tray and I get a pretty quick
cool.
I posted about this on Home-Barista with a photo here:http://www.home-barista.com/home-roasting/alternative-cooling-techniques-with-behmor-t11929.html#p142764.
-Chris
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6) From: Jim Gundlach
Larry,
    Combine the cooling and cleaning tasks.  Use the shop vac to both  
pull air over the beans and pick up the chaff.  As you learn the  
procedures you may vacuum up some of your beans buy you sound like you  
have the sense to figure out a method that does not waste your beans.
        pecan jim
On Dec 18, 2009, at 2:14 PM, Larry Dorman wrote:
<Snip>
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7) From: John A C Despres
I have an old pasta pan with the strainer - I cut a hole in the side of the
pan and riveted a fitting for the shop vac hose in line with the hole. Now I
dump the beans into the strainer and turn on the vac and cool air is drawn
over the beans. I stir a bit and all chaff is collected while the beans
cool.
Interestingly, a few broken bits may fall through the holes, but there's the
occasional stone or bit of concrete in the bottom of the pan as well.
You've got lots of suggestions here. Let us know which one you go with.
John
On Mon, Dec 21, 2009 at 4:20 PM, Jim Gundlach wrote:
<Snip>
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