You will find there are a lot of different models of pH meter ranging from simple pen devices to high end bench top meters and not to mention the large choice of electrodes to choose from. Here's an overview of what you need to know about pH: What is pH? pH meters measure the degree of acidity or basicity of a solution which is proportional to the amount of Hydrogen ions there are in ...
The quality of water used has a huge effect on the quality of the beer produced. Several different parameters are key when brewing, all of which have different effects on the final product. For example Sulphate brings out the bitterness in hops, Chloride can enhance the flavour in low concentrations, but can give a medical taste in high amounts, and Calcium lowers the pH which contribute...