The waster of tea stems
The following diagram briefly illustrates the basic process of the tea industry. In entire tea industry produces two types of waste: tea stems and tea residue. Tea residue is often disposed of as wet waste in retail outlets and individual households.
Tea stems, however, will be treated as processing waste during the initial processing (stems can lead to a loss of tea taste), and based on China's tea market, the number of tea stems generated in China each year is huge (normally more than 1/2 the weight of the harvested tea leaves is lost after being de-stemmed), and this processing waste is mainly incinerated as a waste product of now.