Pu-erh tea

„Ripened or aged raw pu-erh has occasionally been mistakenly categorised as a subcategory of black tea due to the dark red colour of its leaves and liquor. However, pu-erh in both its ripened and aged forms has undergone secondary oxidization and fermentation caused both by organisms growing in the tea and free-radical oxidation, thus making it a unique type of tea. This divergence in production style not only makes the flavour and texture of pu-erh tea different but also results in a rather different chemical makeup to resulting brewed liquor.“

„hui gan; 回甜 - Hui 回- return, come back, reply. 甜, gan-sweet. Together - sweet return, sweet aftertaste. Used generally to refer to the aftertaste of tea, be it sweet or not.“