HomeRoast Digest


Topic: To get rid of chaff (3 msgs / 81 lines)
1) From: Ray Owen
This is a multi-part message in MIME format.
Re: +How NOT to get rid of chaff- - - or - - Hello! 
Yeah, but the chaff left, didn't it?
Wot you mean? What's wrong with that? That's the way I do things.
    * Or, you could build a Bean Collector *cyclone**. Suck up the hot
      beans with it. The air stream would quickly cool them, and the
      much lighter chaff would follow the airstream on through to the
      shop vac.
    *  You could use the shop vac normally 99 percent of the time, just
      hook it to the BCC when you roast. The cyclone would be dedicated
      to coffee beans. A slight air bleed could be introduced to the
      funnel where the beans collect at the bottom if they need further
      cooling-
                     -<  Problem Solved >-
The Syndrome at work.
Cheers -RayO
"When the theme hits the bass, I dance the Jig!" - -Virgil Fox

2) From: Gary Townsend
On 4/21/05, Ray Owen  wrote:
[snipped]
Or, you could build a Bean Collector cyclone*
OK Ray, what is a BCC Cyclone? 
( I am always looking for another little shop project involving home
made roasting )
This sounds interesting, do you have a link, or pics?? 
:-) Gary (-;

3) From: Ray Owen
Hi, Gary-
I'm about out of Guat HHT roast, so I'll crank up the FreshRoast in a 
while -
BCC = Bean Collection Cyclone*. I forgot the reference in my post.
Carpenter shops usually have a dust collection cyclone to separate the 
heavy particulates generated in a woodworking operation. The filters in 
the vacuum system only have to trap the finer sawdust particulate- the 
chips fall out of the airstream in the cyclone where the airspeed slows 
drastically.
Picture a 55 gallon barrel supported vertically on a stand, with the 
open end down. A large funnel is sealed to the open end to empty into a 
container.
The shop vacuum is connected to a hole in the middle of the upper flat 
end. Most of the airflow and all the hot beans enter the cyclone 
tangentially in the side near the upper end. A small flow enters up 
through the open funnel neck past the beans that are falling out.
You could probably get a 5 gallon empty metal pail from a paint store- a 
closer size for home roasting. Rather than fabricating funnels, you 
might find a large one at a farm/ ranch supply store like the Double 
Circle Co-ops.
This thing doesn't exist but if you build one, it will. At the end of 
the roast, dump the beans into a screen mesh colander and vacuum them up 
with a hose to the tangential cyclone inlet. *Maybe BCC = Bean Cooling 
Collector.
Cheers -RayO aka Opa


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