Secondly, because firewood itself has the smell of natural wood, this delicious smell will be transmitted to food with the bottom of the pot when burning, which makes the food more or less endowed with the unique smell of natural wood. Moreover, this fragrance will form a unique odor memory in people's minds, which is particularly warm to eat, just like the taste of mother.
Finally, from a scientific point of view, because gas combustion cooks food through heat conduction, firewood combustion cooks food through heat radiation. In addition, because firewood is burned in the furnace cavity, it will be reflected to the bottom of the pot for secondary thermal radiation during the combustion process, thus making the food cooked more thoroughly. Therefore, the smell of firewood is naturally different from that of gas.