Food preservation has been a major challenge throughout Australia's history. In Victoria James Harrison invented a process of refrigeration that could make artificial ice on a commercial scale. In New South Wales, Thomas Mort and Eugene Nicolle, adapted and improved on Harrison's technology to build the world's first freezer works to produce artificially frozen food. In Western Australian Arthur McCormick came up with the Coolgardie food safe that ran on evaporative cooling, and in South Australia Tom Angove invented the wine cask.

• Elissa McKeand

• Anja Coleby
• Matt Parkinson
• Sally Dominguez