What does the narrow side of the leek box mean?

Leek box is a very popular snack in northern China. Traditionally, it is made of leeks, pork and mushrooms wrapped in dough and baked. As an authentic northern snack, leek boxes are especially loved by local people. The meaning of "narrow edge" in the name is considered to be a feature of this snack.

In the process of making the leek box, the wrapping paper is only sealed on both sides, and the top and bottom are not sealed. The leek box made in this way has narrow sides and round top and bottom. This morphological feature is very different from the closed shape of ordinary steamed buns, and it is also one of the most easily recognizable signs of leek boxes.

"Narrow edge" has some cultural connotations besides its morphological characteristics. In the rural areas of northern China, every family has its own oven. People use local materials in the market, choose leeks, pork, mushrooms, green onions and other ingredients, and then bake them in the dough of leek boxes. This snack is not only delicious, but also represents the diligence and perseverance of the people in the north. The unique "narrow edge" of the leek box has also become an important symbol of this snack culture.