||Water is an important raw material in the brewing process, so the brewery is dependent
on a reliable supply of good quality water. Historically, breweries were established at
sites where good quality water was available, i.e. Pilsen, Munich and Burton-on-Trent.
However, water is becoming a limited resource at an increasing price, controlled by local
authorities. Pure water has a flat unpleasant taste. A balanced content of inorganic salts
is preferable. This is achieved at the water treatment plants of the breweries and
controlled by water analyses using sophisticated instruments such as:
- Atomic Absorption Spectrophotometer for the determination of metal ions, such as Na+,
K+, Ca++, Mg++, Fe++(+) and Mn++.
- Dionex Ion Chromatograph for the determination of inorganic anions, such as chloride,
nitrate, phosphate and sulphate.
- Gas Chromatograph to ensure the absence of trihalomethanes, originating form the
chlorination of surface water.
- Gas Chromatograph coupled to a Mass Spectrometer to ensure the absence of pesticides
polluting the water.
See also Pesticide Analysis