The head of the Chiayi County Tea Producers Association, Chang Chin-neng, points out that the quality of tea depends on the weather. He gives last year's winter tea as an example. "Last year produced two short spans of weather suited for growing excellent tea: November 6-7 and November 13-14, when north-easterly winds brought a cold front through the area," Chang says.
嘉義縣製茶業職業工會理事張金能指出，茶的品質好壞，得「看天吃飯」，他以去年的冬茶為例，去年三波好茶分別在十一月六、七日和十一月十三、十四日東北季風和寒流過境時。