As part of investigation into all-grain brewing, I looked for information on water quality here in Madison. Data is available in the form of the city’s water report here. According to How to Brew by John Palmer, the most important properties of brewing water are Calcium (Ca+2), Magnesium (Mg+2), Bicarbonate (HCO3-1), Sulphate (SO4-2), Sodium (Na+) […]