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Topic: poppery II capacity - aka roaster envy (4 msgs / 89 lines)
1) From: Michael Rasmussen
One downside to being at PNWG came about the next day as I was roasting batch
after batch after batch in my Poppery II style roaster.  After watching folks
roast half and full pounds the small batch size of the popper was a drag.
If I set out on fully modifying the beast (or the Poppery I on the shelf) what's
the maximum size batch I can hope for?
By fully modify I mean tweak the vents, put the fan on a separate always full on
power supply, power the heat control through a variac.
-- 
   Michael Rasmussen, Portland, Ore, USA
  Be Appropriate && Follow Your Curiosity
       http://www.patch.com/words/

2) From: Bill Morgan
My tweaked Poppery I routinely handles 1/2 pound batches and could probably
be pushed a bit further.
That's just right for my needs, to keep several varieties roasted and ready
to brew.
Bill
On 6/18/07, Michael Rasmussen  wrote:
<Snip>

3) From: Randall Nortman
As one data point, I usually do 1/3lb (150g) batches in my modified
Poppery I, and I figure I could do 180g but I haven't felt the need
yet, as I'm still learning the basics of profiling different beans and
I wouldn't want to ruin more than 150g at a time.  Smaller batch sizes
means more opportunities to experiment.
The mods I've done are to split the heater and fan circuits, put the
heater on a 1500w dimmer and the fan on a 0-140v variac.  I usually
run the variac at about 90-95% and it gets quite a lot of bean motion.
With the variac at full output, some airflow-enhancing case mods, and
a different chimney to hold the beans in, I figure I could probably
get up to 250g (1/2lb).
On Mon, Jun 18, 2007 at 11:46:33AM -0700, Michael Rasmussen wrote:
<Snip>

4) From: John Moody
I run a vent modified P1 with 0-140V fan.
I _did_ roast 1/2 lb once, but felt the bean motion was a little sluggish
for even tanning.  Roasting 1/3 lb (150 gm) is no trouble with those
relatively minor mods.
John


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