The provided flow chart exhibits two specific methods of producing black tea. An overview reveals that the diagram recorded tea has to experience two main stages before putting through one of two different processes, the traditional method and renovating method with the same number of manufacturing steps, three stages.
Regarding the chart, the first step is that fresh tea leaves are harvested to prepare to be processed. Noticeably, only bud and two top leaves are picked to get the high-quality products. Following that, the air passed through leaves by the racks, the total amount of moisture is taken out by 60 percent in this stage.
As regards the traditional way whose results are loose tea, withered tea leaves are flattened by a rolling machine to contribute the enzymes lauching from tea leaves before attending the oxidation period. Whilst tea leaves are put into a cutting device to be cut, torn and curled in the modern way. At this moment, leaves are processed into small particles to be ready for the fermenting stage.
Turning to the fermentation, both kind of results are spread on tiles or cement. Notably, the colour of tea is transformed into copper colour due to enzymes react with the air. Moving on the final step, all results are fired to be dry in ovens or hot air dryers, which can remove 97 percent of moisture in total, to generate the flavor and aroma taste before being ready to utilize.