Define Classification of foods based on pH?

Of these, the nature of the food, primarily the pH of food, is the most significant determinant of how severely the food will be processed. Based on the pH, therefore, all foods can be divided into three categories as highlighted in Table.

Table: Classification of foods based on pH

It is also important to note that to determine a heating process for a particular food, we must determine the:

A. Destructive effects of heating on target organism (and food), and

B. The rapidity of food heating up.