2. Wash it after cooking, then dry the leaves and remove the water. There must be some dust and bacteria on the newly picked leaves, and if the leaves are boiled first, the bacteria left on the leaves can be killed in a high temperature environment, which has the effect of sterilization and antivirus.
3. Some zongzi leaves are too hard and not flexible enough, so they need to be folded when wrapping zongzi. If the toughness is not good enough, it is easy to cause the zongzi leaves to break, so sticky rice will be missed. Therefore, boiling zongzi leaves can also strengthen the toughness of zongzi leaves and make it more convenient to wrap zongzi later.