Regardless of whether it was the air intake or the array patterns, the main function was to help the spirit apothecary adjust the temperature of the deviant flame during the pill refinement process.
Only by heating it at the right temperature at the right time could the medicinal pill be guaranteed to exert its greatest medicinal effect.
However, the Devil Clan's alchemy furnace was not so complicated. There was only one air intake. Moreover, the array patterns on the furnace body were also very simple. There were only a few basic array patterns that helped the flame burn.
This was mainly because they did not need such a complicated structure.
The pills of the Devil Clan were obtained by refining living spirit beasts, gods, or humans. Because they were all living creatures, the efficacy of the pills mainly depended on the cultivation strength of the person who was refined before his death and the degree of pain before his death.
