The element dissolves rate of tea leaves are influenced by multiple factors like soil texture, geography condition, climatic conditions and so on. Hangzhou green tea are bred in beautiful mountain and scenery of west lake, growing in an advantageous natural ecological environment, Hangzhou suburb has fertile soil, the sandy soil with high organic phosphorus and slight acidity contains, periphery mountains range overlaps, forests luxuriantly green, north topography higher then south , thus can not only prevent north cold current, but also intercept warm south current, it congeals fog on tea-growing region airs all year round , which is advantage to synthesis and accumulation of tea ingredient like aromatic substances, amino acid, this predominant geographical position, guarantee the superior quality and unique flavor of green tea.