HomeRoast Digest


Topic: Update: West Bend 4-quart hot air corn popper (product No 82400) (36 lines)
1) From: Ryuji Suzuki -- JF7WEX
Since I don't like to use my oven too often during summer, I like this
small toy. My most frequent drink has shifted to Guiness
(statisticians drink Guiness to honor William Gosset) and bloody mary,
and my coffee consumption has declined too...
In order to make this popper usable for coffee roasting, I needed to
jump the 150C thermostat. Then the roast progressed too fast.
1. Dropping the voltage to the entire circuit to 100V to 110V worked,
but air flow also weakened and roast capacity dropped.
2. I made a separate circuit for motor. The bridge diode rectifier had
20.5V across it. (RMS voltage before rectification) I took it away and
give it 22V AC (RMS). 120V for heater still results in roast being too
fast, but 115V a bit too slow. I find this roaster quite sensitive to
voltage across circuit, as well as the amount of bean. Somewhere
between 115 and 120V, with 3/4 cups of green bean, I got nice full
city around 8 to 9 minutes. When roast seems to be too qucick, I
simply shut off heater circuit for a few seconds about every half
minute.
3. I suspect the easiest mofification may be to drill holes to
increase air flow without increasing motor voltage (if it is indeed
possible) as someone suggested earlier, and use it as-is at 120V. Has
anyone tried this approach?
--
Ryuji Suzuki
"I can't believe I'm here.
People always say that I'm a long way from normal."
(Bob Dylan, Normal, Illinois, 13 February 1999)
homeroast mailing listhttp://lists.sweetmarias.com/mailman/listinfo/homeroast


HomeRoast Digest