Anna von Bertele Move over, Sauvignon. Try New Zealand Riesling Last weekend I was flicking through a second-hand wine encyclopaedia that was published in 1994. My attention was grabbed by the section on New Zealand. I couldn’t believe that all it contained was one map, two pages of text and no differentiation of regions, just a simple description of the country and emphasis on the fact that their main grape of production is Sauvignon Blanc. This made me start thinking about the change that New Zealand has seen in the past ten years. Ever since Cloudy Bay came in to the spotlight, people fell in love with the fresh, crisp,…