- Joined Jun 11, 2013
I have a couple of (what are supposed to be) 'instant' read thermometers. None of them seem to be 'instant' and I stand there waiting. Some are better than others; however, what qualifies as 'instant' read?
There is no such thing as "instant" because you can't defy the laws of physics. All contact thermometers need time to have the heat from the item being measured transmitted to the probe then measured. The slowest will be the mechanical thermometers that have a bi-metallic spring that winds and unwinds moving a pointer on a dial. Electronic ones are much faster, but it still takes a few seconds for the probe tip and thermister inside of it to be heated then the electronics to calculate and display the temperature. So there really is no such thing as an instant read, it's only in comparison to the mechanical ones.I have a couple of (what are supposed to be) 'instant' read thermometers. None of them seem to be 'instant' and I stand there waiting.
I recently did this and found my Mechanical instant read thermometer was off by quite a bit, as I had suspected. I think I de-calibrated it by holding the meter head and wiping the probe. Now I don’t wipe the probe using a gorilla grip.