The ceiling is mostly gypsum or gypsum board, and the hot pot is easy to regain moisture, especially when the indoor temperature is low. It is best not to eat hot pot, even when the temperature is high in summer, you should open the window for ventilation, which is in the absence of air conditioning in the northeast home.
If there is air conditioning at home, the indoor temperature will be very low, especially gypsum. When the temperature is low, it is easier to regain moisture when encountering steam, so it is best not to eat hot pot at home.