How to pass one of the world's toughest exams

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Master sommeliers are the elite of the global wine industry - only a few hundred people have claimed the title over the last 50 years. It can take decades of training and cost thousands of dollars, and the final exam has been described as one of the hardest in the world. Master sommelier Fernando Beteta tells Tamasin Ford why it's so difficult. (Picture: Master sommelier Fernando Beteta. Credit: Fernando Beteta)