Matured teas were developed in the early Tang dynasty (618-907 CE) in the Yunnan province. They differ from black tea in their specific preparation, requiring successive stages of a very long fermentation process in cellars specially designed for this aging.
A half-way stage between green and black tea. The leaves undergo a brief oxidation.Blue teas envelop the palate with gentle and velvety notes. Their liquor can vary in shades of green, from yellow to blue, and each cup may be different.
Immediately after harvest, the young leaves are gradually dried. They keep their natural form, large and slender, while the taste of white tea is subtle and refined.