The steamed stuffed bun with hemp thread is the stuffing of hemp thread, vermicelli and radish.

"Haima steamed stuffed bun is the memory of many old Dalian people. Now many young people come to our store to buy steamed stuffed bun, but more customers say that they buy it back and take it to the old people at home." An employee who works in a steamed bun shop specializing in Haima Line told reporters.

Haima steamed stuffed bun is a local traditional food in Dalian, and it is a "fresh taste" for many old Dalian people. Every time Haima steamed bun is on the market, local old people in Dalian will buy Haima steamed bun in the seafood market and pack it with instant noodles at home.

Haima thread is the main ingredient of Haima thread steamed stuffed bun. Haima thread, also known as camel hair and hemp rope vegetable, is a kind of Phaeophyta, Phaeophyta, Fucoidea, Fucoidaceae and Fucoidea. The algae body is yellowish brown to dark brown, tubular, membranous, clustered and 2-5 cm high.

As a local traditional food in Dalian, Haima steamed stuffed bun is a "delicious taste" for many old Dalian people, and now many steamed stuffed bun shops have been cooking this traditional food. Every season when Haima Line goes on the market, many local elderly people in Dalian will go to the seafood market to buy Haima Line and make Haima Line steamed buns with hot noodles at home.

Haima steamed buns can be summarized as "thin skin and big stuffing": the scalded noodles are rolled into a dough with a thickness of about 2mm, which is full of stuffing. When steamed in a cage, the fragrance will come out. The steamed buns and dark stuffing can be seen through the skin of the buns. After a bite, the smooth and soft stuffing is full of "fresh" flavor, and the diced meat in the buns stuffing not only adds fragrance.

The scientific name of Haima Line is Xuanzao, which is mainly distributed along the Yellow Sea and Bohai Sea. The algae body is yellowish brown to dark brown, single unbranched, tubular, membranous, clustered and sticky. Born on rocks or marshes in the middle tidal zone, it also grows on rocks and reefs in the high tidal zone and low tidal zone. China is distributed from Liaodong Peninsula in the north to Hailing Island in Guangdong Province in the south, with the peak growth period from April to June.

Xuan algae is delicious, which is called Haima Line in Dalian, Haima Line and Camel Hair in Shandong coastal area and Haitong Grass in Zhejiang coastal area.