Changsha rice noodle is one of Hunan's delicacies, but the hot and sour powder is not Hunan's delicacies. What is really good is Sichuan's hot and sour powder. Here I list all Hunan's specialties for your reference:

Hunan's specialties are generally related to spicy: salted duck, stinky tofu and Mao Mao fish. Hunan is rich in agricultural and forestry specialties, mainly including Xianglian, Xiangcha, Camellia oleifera, pepper, ramie, citrus, Xianghuang chicken, Xupu goose, Ningxiang pig, lake flour and Hunan rice flour. Xianglian is a famous specialty with a history of more than 3, years in Hunan. It is rich in starch, protein, fat, carotene and inorganic salts. It has the effects of invigorating spleen, nourishing heart, astringing intestines and solidifying sperm. It is an important export material of Hunan, and its output ranks first in the country. Almost all cities and counties in Hunan produce tea, which is one of the four major tea-producing provinces in China and the largest black tea producing area in China. Silver needle tea in Yueyang Junshan tea was once designated as tribute tea by Emperor Qinggan Longdi. Famous Hunan teas include Dayong Guzhang Maojian Tea, Changsha Gao Qiao Yinfeng Tea, Hubolu Tea and Yuanling Jietan Tea. Hunan is the largest producing area of China's specialty Camellia oleifera, with the largest number in Xiangjiang River basin. Hunan seedless tangerine contains many vitamins, most of which are found in Shaoyang, Huaihua, Lingling, Changsha, Yiyang and Yuanjiang. Famous specialty varieties include Jiyang, Blue Mountain Kumquat, Xuefeng Tangju, Qianyang Sugar Orange, Anjiang Xiangyou and so on.