HomeRoast Digest


Topic: Drum superior to Fluid Bed > RE: Zip/Vac/Cloth > RE: +newbie ? (26 lines)
1) From: Ken Mary
<Snip>
In a closed drum, much more heat is transferred by radiation from the drum
wall than by contact of the beans with the drum. Contact with the hot drum
wall is not a problem unless the wall reaches 520F or greater. That is how I
interpret Carl Staub's maximum environment temperature. My oven temperature,
the heat source for the drum, seldom goes above 550F. In the important
"roast" portion of the profile, it is less than 500F.
There are many satisfied drum roasters on this list including myself. I
remember while drinking my popper roasts feeling that no other method could
do better. After I learned to drum roast properly, I left my poppers in the
dust. But now I am going back occasionally trying some drum profiles on the
popper.
One advantage to the popper is being able to put a lot of heat into the
beans in a short time. I can get ramps more than 3 times faster than my
drum. You can really "force" some brightness into beans like Brazils or
Sumatras without scorching.
Both poppers and drums now have a place in my roasting repertoire.
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