Banlan black tea is a fully fermented tea. Banlan black tea is a fully fermented tea refined from suitable new buds and leaves of the tea tree through a series of processes such as withering, rolling (cutting), fermentation, and drying. Withering is an important process in the initial production of black tea. Black tea is called "black tea" when it is first produced. Black tea is named after the red color of the tea soup and leaves after brewing from dry tea.