Quest M3s Thermocouples - Page 2

Discuss roast levels and profiles for espresso, equipment for roasting coffee.
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#11: Post by jammin » Nov 10, 2018, 3:20 am

tyfabes wrote:Reacting/responding to excess noise doesn't teach you anything, either. For someone starting out, delayed information is better than faster, but possibly incorrect information.
Delayed information is in no way helpful & this is a baseless statement.


#12: Post by tyfabes » replying to jammin » Nov 10, 2018, 8:50 am

Please help the clearly uneducated understand why reacting to incorrect information is better than reacting to delayed information?

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#13: Post by jammin » replying to tyfabes » Nov 10, 2018, 11:37 am

You are making some false assumptions:

- smaller probes provide incorrect information
- laggy feedback from thicker helps you make better roast adjustments
- that you need some sort of apprenticeship before graduating to probes that provide real time feedback


#14: Post by ejs3j » Nov 13, 2018, 9:15 am

tyfabes wrote:Yep, using MET. Ordered the MET TC directly from Molly at Quest.

I am running everything through a Phidget 1048.
Tyler, what are the specs of this TC you ordered (price, length/diameter, etc.)? Also, contact info for Molly/Quest?


#15: Post by tyfabes » replying to ejs3j » Nov 13, 2018, 11:56 pm

I didn't get specs from Molly, just a picture. But based on the picture (and basing off my current TCs), I believe the probe length is 50mm, diameter appears to be 2/3mm, and it is terminated with a connector.

Molly's email is If you order from her/Quest, it will ship from Taiwan, so be prepared for longer ship times relative to ordering something domestically.


#16: Post by ejs3j » replying to tyfabes » Nov 14, 2018, 1:14 pm

Ok great. Thanks for sharing.


#17: Post by badperson » Nov 14, 2018, 3:57 pm

I think coffee shrub also has probes, looks like they are out of stock though... ... t-m3s.html


#18: Post by roasterman » Nov 14, 2018, 7:47 pm

Thanks everyone for the feedback. Looks like over time, I can upgrade to 2/3mm probes.
ejs3j wrote:Tyler, what are the specs of this TC you ordered (price, length/diameter, etc.)? Also, contact info for Molly/Quest?
I received an email from Molly two days ago.
Here it is, so you'll can read it.

Thank you for your letter.

K Type thermocouple: USD25/PC(in stock)
Analogue thermometer: USD25/PC(in stock)
And your need would be 3 pcs k type thermocouples?

Freight via Post to the USA is about: USD12; takes about 7~10 days to deliver.

If the destination is not the USA, kindly advise where to send to, I can check freight cost for you.

For directly ordering, please advise your info below for our issuing invoice for you
1.Paypal mail address
2.Consignee address
3.Postal code
4.Phone number

Let me know if there is anything I can assist.

Best regards,


#19: Post by tyfabes » Nov 14, 2018, 10:45 pm

Curious why Molly is saying you need an analogue thermometer? With the 3 thermocouples, you remove the analogue thermometer and do not use it.


#20: Post by roasterman » replying to tyfabes » Nov 15, 2018, 10:35 am

Molly might have included the analogue thermometer price because I just asked for thermocouple prices.