Withering Process
A type of tunnel, called a withering
trough, is used to wither the leaves. It has fans, which blow air in
the trough, causing the leaves to wither. The tea leaves are turned over two
or three times to even up the withering process.
Rolling and Grinding
Process
After withering, the leaves are rolled and ground to break their cells, so
that the process of fermentation can be evenly carried out.
Drying Process
The drying process is carried out using an ECP drier (Endless Chain
Pressure) and a Fluid bed drier. The Black Tea produced has a water
content of 3 - 5%