Yantai City, Shandong Province.

Longkou Vermicelli, a specialty of Yantai City, Shandong Province, is a national geographical indication agricultural product. In the late Ming and early Qing dynasties, people in Zhaoyuan created a new technique of making mung bean vermicelli. Due to the geographical environment and climate advantages, Zhaoyuan vermicelli is famous for its "even threads, flexible texture, smooth and transparent". In 1860, Zhaoyuan vermicelli began to be shipped and shipped to Longkou Port. In order to distinguish it from vermicelli in other areas of Yantai, the words "Longkou vermicelli" and "Zhaoyuan base" were marked on the packaging, and it was first called "Longkou vermicelli". ".