One place's environment nurtures its people, one landscape has its own charm, and one part of Yunnan cultivates excellent tea!

Where does tea aroma come from? There has never been a truly definitive answer. Although there is a lot of information online about the aroma of Pu-erh tea, it is fragmented and chaotic, lacking a standard... To explore the origin of Pu-erh tea's aroma, the editor specifically consulted some experienced tea masters and reviewed literature, striving to present the most authentic aspects of tea aroma's origin.

The formation of tea aroma is influenced by multiple factors, including region, fixation (kill-green), sun-drying, etc. Today, we will first explore the influence of region on the formation of tea aroma.

Regional influence generally includes climate, geology and soil, altitude, temperature, rainfall, etc. Yunnan is the birthplace of the tea tree in the world. The roots of various teas from across China and even the globe mostly lie in Yunnan's Pu-erh tea producing areas. Its long history is sufficient proof that this land of Yunnan can nurture all kinds of fine tea! Xishuangbanna is an important producing area for Pu-erh tea and the most significant distribution center for Pu-erh tea, both historically and today. The main climates in this region are southern subtropical humid climate and northern tropical climate types, with an average annual temperature of 17-22°C and annual rainfall between 1200-1800 mm. These superior climatic conditions create suitable growth environments for the Yunnan large-leaf tea species planted in this area, laying a solid foundation for the quality and aroma formation of Pu-erh tea.

Why does region have a significant impact on the formation of tea aroma? One might draw an analogy between Pu-erh tea and red wine, and the questions in mind will naturally be resolved! French red wine is world-renowned and famous far and wide. The wine produced in the French regions is of excellent quality and possesses a unique aroma distinct from others. This is exactly the same as how region influences Pu-erh tea's aroma.

Borrowing from the Chinese theory of Yin-Yang and the Five Elements, the regional factors affecting Pu-erh tea's aroma can be explained thusly.

"Yin" refers to the earth, namely soil, topography, and water content. "Yang" refers to the heavens, namely sunlight, climate, and weather. The interaction of Yin and Yang represents the coordination and combination of natural conditions, promoting the healthy development of tea trees.

"Metal" can refer to the Pu-erh tea tree's deep roots absorbing various minerals and trace elements from the soil, which will influence the characteristics of the Pu-erh tea maocha (rough tea), its future substance, and aroma.

"Wood" can refer to the absorption of nutrients by the Pu-erh tea tree; the supply levels of nitrogen, phosphorus, and potassium directly affect the plant's growth and development.

"Water" can refer to the rainfall in the Xishuangbanna region and the composition of the local water quality, or it can refer to the moisture content within the tea leaves themselves, which has a significant impact on the later processing of Pu-erh maocha into finished tea.

"Fire" can refer to the light intensity, amount of sunshine, and temperature during the tea tree's growth process. These conditions play a crucial role in the tea tree's growth and the content of substances within the leaves.

"Earth" can refer to the influence of regional altitude, topography, landforms, and soil on the tea tree. Different tea mountains within Xishuangbanna possess different tea aromas and flavors.

The reason ancient tree tea is said to have a deep, heavy, and long-lasting aroma is partly due to the significant influence of its region!