Why is the food cooked by the earthen stove particularly fragrant?

Rural earthen stoves are very simple, but the food they make is very fragrant. This is because the stove can adjust the temperature, and it also has the smell of firewood. Moreover, it is very convenient to use earthen stoves in rural areas, which can not only control the temperature, but also the ingredients we use are all planted by ourselves, so there is a natural smell, and the meals made are of course very delicious.