The withered leaves are rolled under mild-pressure between metal plates which results in twisting of the leaves. Due to the pressure, the cells in the leaves rupture, thereby releasing the juices in the leaves, rendering the rolled leaves to moisten.
Sorting of different grades is done by sorting machines which are fitted with wire mesh trays that revolve or vibrate. The tea is passed over wire mesh of varying sizes so that the whole leaf, broken leaf, fannings and dust grades fall at different places. These sorted teas comprise the different grades.