Qingtuan, or green rice balls, is a Chinese snack that is widely consumed around Hanshi Festival (Cold Food Day) and Qingming Festival. 

The glamor of Qingtuan lies in its mugwort puree, which gives it a distinctive green color and herbal flavor.

Once a sacrificial offering during Cold Food Day, Qingtuan has evolved into a seasonal delicacy and cultural symbol, representing both a love for spring and the continuity of tradition.

Foreign tourists said the unique taste and cultural significance of the snack left them with a strong impression.