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Why are all temperature values negative on Roasting Intelligence

This article will explain why temperature values appear negative on Roasting Intelligence and how it impacts coffee roasting techniques.

Written by Nikolett Takacs

Updated at July 18th, 2025

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Table of Contents

The issue The solution Congratulations! You have successfully learned how to resolve temperature value issues in Roasting Intelligence (RI).

The issue

All temperature readings on Roasting Intelligence (RI) are showing negative values.

The solution

Negative temperature readings indicate that the leads in your Cropster Connector may be incorrectly connected.

 

Check the wiring again. 

You need to make sure that the positive wire (+) is connected to the respective number port (+) and the negative wire (-) leads into the G-port of your Cropster Connector (-). 


Congratulations! You have successfully learned how to resolve temperature value issues in Roasting Intelligence (RI). 

Your opinion matters. If you have further questions, feedback, or concerns, please submit a support ticket directly from support.cropster.com. 

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