Before You Start
How and where you hold the probe changes the reading, so good technique matters. Before you start:
Your Cooking Oil Tester (TPM) is connected to the Squizify app (see How to connect the Cooking Oil Tester (TPM) to the Squizify app).
The oil is between 40°C and 200°C. Oil below 40°C may be partly crystallized and will read wrong.
The probe is clean and the cover is off.
Please turn off induction cookers and other equipment as the electromagnetic field distorts the reading.
Steps
In the Squizify App select the probe icon on the row you're testing for.
Lower the probe into the oil, keeping the tip between the Min and Max depth marks on the rod.
Keep the probe still and away from the pan wall, frying baskets, and any metal objects.
Wait for the reading to settle. The value steadies and HOLD appears on the screen.
Read the TPM % and note the background colour (see Cooking Oil Tester (TPM) colour guide: when to change your frying oil).
Record it in Squizify by pressing Capture.
When taking several readings, wipe the probe between each one. If you are re-testing the same oil, wait about 5 minutes before measuring again. If a reading reaches the change-the-oil point, take a second reading to confirm before discarding.
If the screen shows "Auto Hold TPM"
Your Cooking Oil Tester (TPM) has an Auto Hold function that's on by default. Once a reading settles, it locks the TPM % on screen so you can note it down, even after you take the probe out of the oil. This is normal — it isn't stuck.
If the number on screen doesn't match the oil in front of you (for example, the temperature reads 0.0°C because the probe isn't in oil), you're looking at a held reading from earlier, not a live one. To take a new reading, press H to release the hold, then immerse the probe in the oil you want to test.
Still Need Help?
If a reading looks wrong, see Cooking Oil Tester (TPM) readings look wrong, show zero, or won't settle, or contact the Squizify support team.