Matcha is a finely ground processed powder used as a flavouring agent, mainly in tea. It’s popular as a sweet treat in cakes and pastry, as well as on Instagram with its aesthetically-pleasing green shade. Dr.Evangeline Mantzioris is the Program Director of Nutrition and Food Sciences at the University of South Australia, and she’s on the line now to talk about the skyrocketing cafe craze sweeping the nation, as well as its global shortages as a result.