However, the latitude and convection currents present in Fu---jian ’ s growing areas create higher levels of soil moisture. This gives Fu-jian-ese oolongs higher levels of theophylline, which makes them more astringent than their Taiwanese counterparts.
但福建因緯度、空氣對流等關係，土壤的含水量比台灣高，茶葉中茶鹼含量相對也較高，吃起來較「麻嘴」。