Biluochun (Chinese: 碧螺春) is a famous green tea originally grown in the Dong Ting mountain of Tai Hu, Jiangsu Province, China. Also known as Pi Lo Chun, it is renowned for its delicate appearance, fruity taste, floral aroma, showy white hairs and early cropping.

The name Biluochun literally means "Green Snail Spring". It is called so because it is a green tea that is rolled into a tight spiral, resembling snail meat, and is cropped early spring.

Its original name is Xia Sha Ren Xiang (simplified Chinese: 吓煞人香; traditional Chinese: 嚇煞人香; pinyin: xiàshàrénxiāng; "scary fragrance"). Legend tells of its discovery by a tea picker who ran out of space in her basket and put the tea between her breasts instead. The tea, warmed by her body heat, emitted a strong aroma that surprised the girl.

According to the Qing Dynasty chronicle Ye Shi Da Guan, Emperor Kangxi visited Tai Hu in the 38th year of his rule. At that time, because of its rich aroma, local people called it "Scary Fragrance". Kangxi decided to give it a more elegant name - "Green Snail Spring".

Tea is an aromatic beverage prepared by pouring boiling hot water over cured leaves of the Camellia sinensis plant. The term also refers to the plant itself. After water, tea is the most widely consumed beverage in the world. It has a cooling, slightly bitter, astringent flavour which many people enjoy.

Consumption of tea (especially green) is beneficial to health and longevity given its significant antioxidant, flavanols, flavonoids, and polyphenols content.

Consumption of green tea is associated with a lower risk of diseases that cause functional disability, such as “stroke, cognitive impairment, and osteoporosis” in the elderly.

Tea contains L-theanine, and its consumption is strongly associated with a calm but alert and focused, relatively productive (alpha wave dominant), mental state in humans. This mental state is also common to meditative practice.

The phrase herbal tea usually refers to infusions of fruit or herbs made without the tea plant, such as rosehip tea or chamomile tea. Alternative phrases for this are tisane or herbal infusion, both bearing an implied contrast with "tea" as it is construed here.