Production methods are roughly the same for oolong tea and black tea, with both going through drying, rubbing, splitting, fermenting, and drying. However, black tea produced during the summer and autumn is of better quality than oolong tea: because of the strong summer sun and high levels of catechu, the tea is stronger and more fragrant.
紅茶與烏龍茶的生產製成大致相同，都要經過萎凋、揉捻、解塊、發酵、乾燥等程序，但與烏龍茶相反的是，夏秋的紅茶品質較好，因為夏秋陽光強、兒茶素含量高，製成的紅茶水色強、滋味濃。