Karigane is a term specific to tea, to describe the inclusion of tea tree stems in with the tea leaves. One may think that this lessens the strength or quality of the tea, but it actually refines the flavor and changes it slightly. The inclusion of Karigane in a tea can also add efficiency to brewing, as the stems insure an even separation of the leaves. Inclusion of Karigane marks a more mature tea as well. (The method of infusion used for Karigane varies depending on the type of tea with which it is blended. Please see Gyokuro Karigane, Houjicha Karigane, or Sencha Karigane for more information.)