Equipment & Workspaces     PID on 1kg reflecting significantly lower temperature?

2023-06-02 18:56

PID on 1kg reflecting significantly lower temperature?

Odd thing I've run into when heating my machine, and when charging a roast:

  • My BT probe will read around 400º
  • My ET probe will read around 400º
  • Yet the PID on the machine will read around 300º-310º

Is this normal, or is there some kind of discrepancy here that needs to be corrected? I found this issue when looking at roast logs from the roast-along videos. The BT at the beginning of those roasts reflects a temperature that's around 400º. I typically charge my roasts at around 390-400 PID, which in turn reflects 480º-515º BT on roast path. My roasts are, on average, between 7:30 and 9:30. Any thoughts?

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2023-06-08 22:41

Totally normal!

The PID uses a different thermocouple, usually much thicker than the BT or ET probes.

don't stress!

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