pH

Definition: Stands for Potential of Hydrogen. It's the measure of the concentration of free hydrogen ions in a solution, which is a measure of its acidity. The scale ranges from 0 to 14, with the most acidic solutions rating 0 and the most alkaline (basic) solutions rating 14.

Benefits (Why Bother?): pH levels affect how food tastes and feels, as well as its susceptibility to microbes. Monitoring pH is crucial when homebrewing, gardening, canning, etc. 

Method (How to Do It):Using pH meters. Shop - Products - pH/Humidity - ThermoWorks