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Ms Amato, of Toronto, will talk about the science of beer during the three-day ScienceTeller Festival, which runs from October 25-27 and will be held mainly at the Otago Museum.
Ms Amato said beer was not only ''delicious'' but was also a ''multifaceted beverage''.
There were many ways to appreciate it and a great deal of science was involved in ''crafting the perfect pint''.
The biennial international festival celebrates storytelling and science communication in Dunedin, and is hosted by the University of Otago Centre for Science Communication.
Ms Amato, a qualified beer judge, is also one of only seven Master Cicerones, certified by the Craft Beer Institute in the United States.
Her Dunedin talk will be held at the Lone Star Cafe and Bar, in George St, and is linked to an evening beer-tasting session on Sunday, October 27.
She will also attend a later ''Literature and Lager'' public event at 7.30pm, also at the Lone Star, during which readings will be given by science historian Prof Naomi Oreskes and sceptic Guy Harrison, both based at San Diego, as well as by senior science communication students.