There are many kinds of grass lines used to wrap zongzi, such as palm trees, rushes and straw grass. The leaves of palm trees are torn into long strips, which are more resilient and not easy to break when cooked. It is a kind of plant that is widely used for making zongzi. Rush stems are smooth and slender, moderate in hardness, long and elastic in fiber, good in tensile strength and rich in fragrance, and it is one of the excellent natural green plant fibers.

It is not advisable to wrap the dumplings with bean paste too tightly to prevent rice grains from squeezing into the bean paste. If it is not cooked thoroughly, it will be sandwiched. Salted pork dumplings with pork stuffing should not be tied tightly, and the tightness should be moderate.

The dumplings filled with lean pork need to be tied tightly, and the lean meat will shrink during cooking, which will easily lead to the leakage of the fat juice of the dumplings into the water, thus failing to keep the dumplings fat and waxy.