铁观音香气来源

安溪位于东南沿海和戴云山脉之间，海洋性气候和山地气候交织，来自漳平的西北风与泉州湾的东南风对流形成昼夜温差大；同时，安溪红黄壤呈酸性，ph4.5-6.5，矿物质和微量含量高。此外，安溪的无霜期长，降雨量适宜，内安溪海拔高。以上这些独特地理位置都为铁观音香气物质的形成构成优越的条件。而离开这个地方条件就改变了，就不具有产生高香铁观音的条件了。

有了铁观音香气的物质基础和地理条件，没有精湛的加工工艺也产生不了铁观音的高香气。在所有的茶类加工工艺中，铁观音是最难也最复杂的之一。做青过程是铁观音香气形成的关健，它是在傍晚日光萎凋后，夜间交替进行多次摇青和凉青，通过酶促氧化，使茶叶芳香物质不断形成，直至次日杀青。在整个铁观音釆摘、萎凋、摇青、凉青、杀青、揉包、烘干过程中，全部无需添加外来物质，便可产生香高味醇的铁观音。

Anxi is located between the southeastern coast and the Daiyun Mountains. The oceanic climate and the mountain climate are intertwined. The northwest wind from Zhangping and the southeast wind convection from Quanzhou Bay form a large temperature difference between day and night; at the same time, the red-yellow soil of Anxi is acidic, ph4.5-6.5 , high in minerals and traces. In addition, Anxi has a long frost-free period, suitable rainfall and high altitude in Inner Anxi. The above-mentioned unique geographical location constitutes superior conditions for the formation of Tieguanyin aroma substances. But leaving this place, the conditions have changed, and there are no conditions to produce the high-fragrant Tieguanyin.

With the material basis and geographical conditions of the aroma of Tieguanyin, the high aroma of Tieguanyin cannot be produced without exquisite processing technology. Among all tea processing techniques, Tieguanyin is one of the most difficult and complex. The process of making green tea is the key to the formation of the aroma of Tieguanyin. It is after the sun withers in the evening, and alternately shake green and cool green for many times at night. Through enzymatic oxidation, the aromatic substances in tea are continuously formed until the greening is completed the next day. In the whole process of picking, withering, shaking green, cooling green, fixing green, kneading bag and drying, all without adding foreign substances, Tie Guanyin can be produced with fragrant and mellow taste.