ANSWER Hi, the manufacturer states to calibrate "frequently" and is quick, using a 2-point procedure. Thank you.
By: rosetta From: orlando, fl Date: Sep 05, 2013
QUESTION Is this meter appropriate for measuring the ph in a tomato sauce?
ANSWER Rosetta,
I just checked the web site and it does not give specific type of food it will work on. It does say that it provides reliable measurements of the pH levels of foods and liquids. I hope this helps.