San sá is a traditional famous food in Linyi, Shandong Province. Including the formula of ingredients, etc., but Linyi is the most famous, and many famous people have benefited from it. Generally speaking, beef grits are the main ingredients, and in recent years, grits based on chicken grits have also appeared.

San Tang is a traditional snack with local characteristics in China. It has won the title of Top Ten Gold Medal Tourist Snacks in Shandong Province and the First Gold Medal Tourist Snacks in China, and has been selected as the intangible cultural heritage of Henan Province and Suzhou City, Anhui Province.

There are two kinds of soup. One is "Black Naan" in Linyi area. When cooking, a large amount of black pepper is added and bones are added for cooking, so the soup is dark and thick, fresh, spicy, mellow and memorable. Later, it was introduced to other places from Linyi. Because the color of Naan was too dark to be accepted by local people in some areas, it was changed to white pepper, which is another kind of "white Naan" in Zaozhuang and Jining areas.