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Question regarding installing a thermocouple
scarter11
I've got a TC on the way, and have a quick question concerning it's installation. I will be installing it in my breadmaker. My concern is that since I use the internal BM heating element, will it affect the temperature readings. It is mounted at the bottom of the pan, and I wanted to have the tip of the TC mounted through a hole there to be within the bean mass. I guess the better question is, does the entire length of the TC detect temperature, or just the tip that will be within the bread pan?

Thanks,
 
Koffee Kosmo

Quote

scarter11 wrote:
I've got a TC on the way, and have a quick question concerning it's installation. I will be installing it in my breadmaker. My concern is that since I use the internal BM heating element, will it affect the temperature readings. It is mounted at the bottom of the pan, and I wanted to have the tip of the TC mounted through a hole there to be within the bean mass. I guess the better question is, does the entire length of the TC detect temperature, or just the tip that will be within the bread pan?

Thanks,


The answer is only the tip records temp of a thermocouple probe be bit wire or shaft style
Best entry point is by drilling a hole from the side

Point to note ! Normally the BM cuts out in 18 minutes so it is best to disconnect this feature

KK
I home roast and I like it. Designer of the KKTO
Roaster Build information
https://homeroast...ad_id=1142

https://docs.goog...lide=id.i0
Blog - http://koffeekosm...gspot.com/

Bezzera Strega, Mazzer Robur Grinder, Pullman Tamper Convex,
(KKTO) Turbo Oven Home Roaster.
 
scarter11
Thanks for the reply. The BM has been completely rewired for continuous motor use and a switchable internal heater combined with 1000 watts of IR halogen radiant heating. There is a thread here:

http://forum.home...post_22108
 
Koffee Kosmo
I like one I saw sometime ago

A piece of timber of just the correct thickness is attached to the side of the BM
The probe is inserted in the guide hole
The thickness of the timber does 3 things
1] Guides the probe true every time
2] Insulates
3] The stop point of the plastic handle is also the perfect position in the bean mass

It takes the guess work out of it

I found a picture of it and have inserted it for you

KK
Koffee Kosmo attached the following image:
corretto_mk11.jpg

Edited by Koffee Kosmo on 08/03/2010 8:48 AM
I home roast and I like it. Designer of the KKTO
Roaster Build information
https://homeroast...ad_id=1142

https://docs.goog...lide=id.i0
Blog - http://koffeekosm...gspot.com/

Bezzera Strega, Mazzer Robur Grinder, Pullman Tamper Convex,
(KKTO) Turbo Oven Home Roaster.
 
scarter11
Nice! I like the HG mount with height ajustment as well.
 
Koffee Kosmo
Now you know why I was drawn to this particular design

I like simple things that work well ThumbsUp

KK
I home roast and I like it. Designer of the KKTO
Roaster Build information
https://homeroast...ad_id=1142

https://docs.goog...lide=id.i0
Blog - http://koffeekosm...gspot.com/

Bezzera Strega, Mazzer Robur Grinder, Pullman Tamper Convex,
(KKTO) Turbo Oven Home Roaster.
 
scarter11
Got my TC installed, and it worked beautifully. Being only a $17 unit, it is sensitive to movement, but if left alone, tracked the temp perfectly. I don't have my log here with me at work, but FC happened at 406f, just like in Tom's "Visual Guide to the Roast Process".

It is amazing how blind I was as far as temperature when I was just using a oven thermometer that was well above the bean mass.
 
Dan
On the Homeroasters.org home page you can see the "Degrees of Roast Pictorial" I did many years ago when I setup the website. I think this predates Tom's page you mention, since I hadn't seen this until now.
 
seedlings
The key in temperature is repeatability... then you can use environment temperature (way above the beans) or bean temperature.

CHAD
Roaster: CoffeeAir II 2# DIY air roaster
Grinder: Vintage Grindmaster 500
Brewers: Vintage Cory DCU DCL, Aeropress, Press, Osaka Titanium pourover
 
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