HomeRoast Digest


Topic: Bread machine thermocouple (7 msgs / 186 lines)
1) From: K W Matley
I went back to the HG/DB roasting method when my Gene Cafe had its 
little accident and after a couple of weeks went out and bought a bread 
machine. I've been very pleased with my roasting results with the bread 
machine,so much so that even though my Gene has been back from the shop 
for weeks I haven't bothered to crank it up.
I know that some HG/BM roasters install a thermocouple in the bread 
machine bowl for monitoring roast temperature. I ordered one of the 
digital thermocouples that Tom sells and I'm wondering what the best 
way to mount it in the bowl is. Should I just drill a hole in the bowl, 
run the wire in, and fix it with a clamp or something? I'd appreciate 
any suggestions, or leads on where I can find pictures of such a setup. 
Thanks.
Ken
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2) From: Bill
Ken,
haven't had much of a chance to mess with it but I'm planning on the same
thing.  I think I read from someone over at homeroasters.org that he drilled
a hole and found a brass tube that matched the size of the TC.  The hole in
the bread pan fit the brass fixture, then he ran the TC lead through it...
I'm thinking of doing the same thing, but that won't happen til August.
 Life is about to get nice and interesting!
Am curious what you do, Ken.  Please keep us informed.  they seem to be
modding BMs more at homeroasters.
peace
bill in wyo
On Wed, Jul 2, 2008 at 8:10 PM, K W Matley  wrote:
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3) From: John Grubbs
Bill and Ken,
I haven't yet done anything towards adding a thermocouple to my HGBM, but
what I've been pondering is...
Using the brass tube as Bill referred to, bend it into a right angle (with a
curved bend) and arrange it so that it goes in horizontally through the side
of the BM, then turns vertically before it goes through a hole drilled in
the bottom of the BM. The end of the TC sticks straight up into the bottom
of the pan. This way, the pan can be pulled out after roasting without
having to retract the TC.
John
On Wed, Jul 2, 2008 at 10:29 PM, Bill  wrote:
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4) From: David Morrow
I drilled a hole in my BM pan for the thermocouple from the SM digital
meter.  I put the hole in the corner so I could insert the thermocouple
about an inch and still avoid the paddle.  I put it about 1/2 inch above the
bottom of the pad so it would be covered by the bean mass even when I roast
a half pound.  It seemed to work well for three roasts on Saturday, and made
it easier to determine when to slow the roast as I approached first crack at
just over 400 degrees.
The blue tape on the end of the thermocouple melted a little, and rather
than inserting a metal tube that would also conduct heat, I ordered some
heat resistant tape to wrap around the thermocouple.  With shipping, it came
to $2.32 here:http://www.aircraftspruce.com/catalog/appages/heatprooftape.phpThe tape looks to be rather thick, and I will probably have to redrill the
hole in the pan to accommodate it.  I will let you know how it works when I
receive it.
I have only been roasting for a couple of months, first with a Poppery II
and now with the HG/BM, but I'm having a great time.  I have been getting
some sour roasts when trying to hit City or City+, so I hope that stretching
out the length of the roasts will help.  My darker roasts have been great,
but I am more of a medium roast drinker.
Dave M

5) From: K W Matley
I got some brass tubing, and in the course of fooling around with it 
got that brassy smell and taste all over my hands. Seems that I'm 
particularly sensitive to that taste and although I know that it will 
probably burn off in a roast or two, I don't want to risk having my 
coffee taste of brass. I saw a video from a link at homeroasters.org 
http://www.youtube.com/watch?v=oW_Ogv8FvLs)in which the thermocouple 
was just poked through a hole in the bread machine pan. A simple clamp 
screwed to the outside of the pan held it in place. I've drilled the 
hole and installed the thermocouple, but haven't tried it out yet. 
On Sun, 6 Jul 2008 14:13:29 -0500, John Grubbs wrote:
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6) From: K W Matley
Weird, I thought I'd saved this to finish and post later, but I see it 
made it to the board.
I roasted a batch with the thermocouple installed. The roast progressed 
a bit quicker than the temperature reading suggested--I got first crack 
at about 390 rather than 405--but I brought it to Full City without 
difficulty. I'll see how it goes for a couple more roasts and post my 
results....
On Mon, 7 Jul 2008 18:09:28 -0700, K W Matley wrote:
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7) From: raymanowen
" ...heat resistant tape to wrap around the thermocouple."   -ro
Congratulations, you win.
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