水仙茶最早產於擁有千年歷史中國貢茶之鄉的建陽、建甌等閩北一帶，按不同產地，分別為武夷水仙、閩北水仙、閩南水仙。
一茶軒的水仙屬武夷水仙，此茶本源於閩北水仙，又以得天獨厚的自然生長環境以及獨特的岩茶製作工藝比閩南水仙和閩北水仙更加有名。水仙的品質特徵最為突出的當是「醇」字，總體表現為「香氣醇正、滋味醇厚」。一茶軒引入的水仙茶葉外形肥壯，色澤綠褐油潤，葉基主脈寬扁明顯，香氣幽長，沖泡後湯色濃艷呈深橙黃色，帶有獨特的「蘭花香」，「木香」，味濃醇厚，喉韻明顯，喝起來口腔似有豐富的咀嚼物，水質細膩、順滑、綿柔、甘潤，所以有云「水仙茶質美而味厚，果奇香為諸茶冠。」。

It was in northern Fujian – the production hub of tribute teas sent to the emperors – where Jasmine tea was first made. Based on the origin, it can now be categorised into Wuyi Shui Xian, Northern Fujian Shui Xian and Southern Fujian Shui Xian.
Among the three branches, One Teahouse selects the more revered Wuyi Shui Xian, which benefits from the mountainous location of cultivation and unique rock tea making technique. The most outstanding quality of Shui Xian is mellowness, meaning
that it tastes and smells rounded and smooth. Our Shui Xian tea leaves are especially plump with an olive colour, defined veins and an elegant aroma. The brew is deep orange-yellow, carrying a unique bouquet of orchid and wood. Soothing and rich, drinkers can feel the sip of tea coating the throat.