The chart provided shows how to produce black tea in two different ways. Obviously, the production process of black tea includes five steps, from picking tea leaves to processing dry tea leaves. In the first step, people only harvest the doll and the top two leaves to ensure the required tea quality. In the next stage, leaves are placed on shelves so that air can pass through and remove 60% moisture. After the leaves wither, they can be treated by traditional methods or modern methods. According to the traditional method, tea leaves are flattened and chopped to produce separated tea, and enzymes are released from the leaves at this stage. On the other hand, modern methods are used to produce filtered tea bags. This process is expected to be faster, and smaller granular fragments will be produced when leaves are cut, torn and curled. In the next step, the leaves undergo oxidation or fermentation. In this step, the leaves are spread on a flat surface, such as brick or cement, so that the enzyme can react with the air. As a result, the color of the leaves turned copper. Finally, the leaves are dried in an oven or hot air dryer, resulting in obvious water loss (ninety-seven percent). In addition, the taste and aroma of the leaves are released.
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