Sweet in the south and salty in the north, spicy in the east and sour in the west. The zongzi in the south is mainly salty. In the food culture, there are many foods that are very different between the north and the south, such as tofu. Southerners like to add some sugar to make it sweet, while northerners like to add some salty water to make it salty. Whether sweet or salty, they all have their own characteristics and charm.