Back in an era with scant resources, hawkers would use large tree leaves to wrap their food. When wrapped with these leaves, the kway teow contained within would be imparted with the faint fragrant of the leaves, further enhancing its taste. Today, due to an abundance of resources, kway teow is usually packed using cellophane. Although the food is kept warm for a longer period of time, the noodle no longer has the fragrance of the leaves.
(Lianhe Zaobao, 10/12/2018)