Dejeng Oolong Tea #TWTC Project is a cafe in Taipei's Xinyi District that sells oolong tea and bubble tea. Customers choose among spring oolong, light oolong, and roasted oolong, which differ in roast level, and can add tea jelly or chewy pearls. The tea ranges from a light fragrance to a deep roasted aroma depending on the type, and orders can include tea jelly or pearls. There have been cases of hair and pieces of plastic found in the drinks, so hygiene management is lacking.