Conflicting advice for coffee machines during boil water notice

Thousands of households and businesses in parts of Hillsborough, Mt Roskill, Royal Oak and Three Kings were under a boil water notice after a test showed water contamination. It turned out to be a tap, that has been replaced. But during the notice Watercare's advice was to boil water, so that's a hundred degrees celcius. If boiling on the stove it needed to be for a minute. A supplier of coffee machines and a separate coffee company told Checkpoint most machines do not boil the water and hit a maxium of about 94-95 degrees. Jim Graham the Chief Advisor Water Science at The Water Services Authority - Taumata Arowai spoke to Lisa Owen.