In the last days of the year, people who are far away from home hope to finish their work early to reunite with their families. Because everyone wants to gather with their family to wrap banh chung to offer to their ancestors and grandparents. For many generations, Banh Chung (Vietnamese square sticky rice cake) is the joy of Tet reunion and reunion, and it is Tet and Banh Chung is indispensable. Because of that meaning, the custom of wrapping Banh Chung on Tet has become a traditional custom. Every year on the 27th, 28th and 29th of Tet, families are busy preparing to wrap Banh Chung. At this time, grandparents, parents, brothers and sisters gather together, each helping to make beautiful and delicious cakes to offer to their ancestors on the day of reunion.