The illustration depicts the process of transforming tea leaves into five tea types, namely white tea, green tea, oolong tea, large leaf black tea, and small leaf black tea.
Overall, the process comprises three main stages, commencing with the leaf prepartion, followed by a series of processing leaves according to different types, and culminating in final tea products.
In general, the tea-making process begins with leaf growth, followed by plucking and wilting (also known as withering). At this point, the process diverges depending on the type of tea produced. In terms of White Tea, after being plucked and wilted, it goes directly to the drying stage without any external steps, providing the final tea. However, green tea, after overcoming three first steps, it undergoes steaming stage in order to forbid fermentation and maintain the green color. After that, it is rolled and dried in the oven, giving the final green tea.
As for the remaining tea leaves, Oolong leaves have to undergo a slight fermentation after being rolled, then go to the drying stage before providing the final result. In contrast, large black leaves and small black leaves are fully fermentated, with the crush process of small black leaves.