HomeRoast Digest


Topic: Beginner with WB Poppery II (3 msgs / 68 lines)
1) From: Mark Neuhausen
This is a multi-part message in MIME format.
I am a newbie roaster, although a long-time espresso maker and grind =
your own roasted beans coffee drinker.  I bought a Poppery II on-line =
and have been having erratic results with home roasting.  I bought a =
thermometer from Sweet Marias and find that the temperature of the beans =
gets to 350* quickly, and continues rising to the low 400s, but then =
stalls and will not get hotter.  When I opened the Poppery II, I see =
what looks like a bi-metallic strip that likely is an overtemperature =
protection that cuts off one of the two heating elements at higher =
temperatures.  
I always watch the roast.  Do I need to bypass this overtemperature =
sensor?  Is it an overtemperature sensor?  My roast times for 1/2 cup =
are about 8 minutes to get to 400 degrees, and then no amount of =
roasting gets over about 415 degrees.  The roast tastes good, but does =
not produce the darker fuller toasts that I like best.
- Mark 

2) From: AlChemist John
Sometime around 06:10 10/19/02, Mark Neuhausen typed:
<Snip>
That is indeed what that is.
<Snip>
The "proscribed" solution to stalling roasts on a WBII is to remove that 
bi-metallic strip.  Once you are inside though, I also find that a switch 
to turn the heat on and off is very handy.  Otherwise you may find that 
instead of your beans getting to 350 "quickly", they may try for 500 
"quickly" :-(.  Anyway, good luck and welcome aboard.
--
John Nanci 
AlChemist at large
Roasting and Blending by Gestalt
homeroast mailing listhttp://lists.sweetmarias.com/mailman/listinfo/homeroast

3) From: Chris Beck
Pull out the little silver flat spring UNDER the top contact.  That's 
the bimetallic strip that pushes the top contact up when it's too hot. 
 You may need to bend down the top contact to assure a good connection 
after you remove the little spring.  Test the popper before you put it 
completely together or you'll have to take it apart again.
I also second the recommendation of adding a switch.  It works nicely.
I've got some links to wiring diagrams on my website...http://www.execpc.com/~n9zesLook under Homeroasting
Chris
Mark Neuhausen wrote:
<Snip>
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