Burning the bottom of the pot when moving is a traditional custom, and the specific time schedule varies from place to place.

Some places "burn the bottom of the pot" before moving, with the purpose of offering sacrifices to the kitchen god and praying for his safety and smoothness. In other places, people will burn the bottom of the pot after moving, that is, after moving to a new house, relatives and friends will come to congratulate, and the host family will hold a banquet to worship the kitchen god to celebrate the opening of the new house.

Generally speaking, the exact time of the custom of "burning the bottom of the pot" may vary from region to region and family.