Jianghua bitter tea variety, also known as Gaojiao tea, is one of the sexual groups of tea trees. Jianghua bitter tea is produced in Niuguling, Tao Wei Town, Jianghua. It is a green healthy drink without alcohol except cocoa and coffee, and its "tea polyphenols" content is the highest in tea in the province, so it is quite famous. It has the effects of quenching thirst, relieving summer heat, refreshing and lowering blood pressure. Its taste is bitter first and then sweet, and its fragrance is overflowing.