P 5.04 – Recap and Glossary

Recap

• Water has the potential to cause scale and/or corrosion of brewing equipment.
• Cafe water needs to be carefully monitored to ensure it is balanced between too soft and too hard.
• It is possible to use a Langelier Saturation Index calculator to ascertain if you water is balanced.
• To maintain good water, it is necessary to perform regular tests for general hardness (GH), and carbonate hardness (KH), potential of Hydrogen (pH) and total dissolved solids TDS.
• Limescale, is not as thermally conductive as copper or aluminium; scale buildup has the effect of encasing heating elements in an insulating layer.
• Some authorities require pressurised equipment to undergo regular pressure testing.