On 15 Mar 2004 at 18:58, Abraham Carmeli wrote:
The simplest way is to plug the FR into the Variac and run the
Varaic at maximum voltage to get the largest load possible (tilt
the roaster). The roast will go fast, since the heat is high.
When you hear the first pop of the first crack, turn the variac
down until the beans are barely moving and leave it there a
minute. If you catch it right the first crack won;tstart and the
beans will even up in color. Raise the voltage to normal (110)
until the the first crack is well under way, then reduce to
around 100 till the end of the roast.
You're shooting for 5 minutes from the start of the first crack
to the end of the roast. The forst crack thermometer reading
will be 385F to 405F, your desired roast level will be at around
455F to 465F. So you want to set the voltage to get about 15F
This will gove you a mellow roast, but is not quite a drum roast
profile. A drum profile requires that the fan is wired
separately from the variac, and the heat is used for the variac
alone. That will allow you to control the heat from the start of
the roast. A drum profile would be a roast that takes 10 to 15
minutes, with most of the roast time before the first crack from
250 to 380, and a shorter time from there to end, about 3 1/2 to
I have some instructions for doing the split wiring athttp://briefcase.yahoo.com/jim_schulmanIf you know nothing about electrical wiring, have someone who
does help you,
since there's a few gotcha's involved.