The diagram presents the procedure for manufacturing five different types of tea, namely white tea, green tea, oolong tea, large leaf black tea, and small leaf black tea.
Overall, while all the teas are produced from the same leaf, the differences in the processing stages result in five distinctive tea products.
Focusing first on the similar steps, the first three of the manufacturing procedure are the same for all five kinds of tea. Initially, the leaves are grown before being plucked, and following this, they are wilthered. The final stage of the process is also universal, with all the teas being dried in an oven before turning into finished products.
Turning to the in-between stages of the process, differing methods are employed, leading to divergent outcomes. White tea has the simplest procedure, for it involves no other processing. In stark contrast, rolling is a shared step among green, oolong, and large leaf black teas. While green tea is steamed before being rolled and remains unfermented, the other two types undergo the rolling step before fermentation, which is slight for the former but full for the latter. Also fully fermented is the small leaf black tea; however, compared to the large one, it is crushed rather than rolled beforehand.