The diagram depicts the overall structure of a home smokery and the sequence of steps involved in operating it.
Overall, this procedure encompasses three key steps, commencing with delivering the fresh air into the ground level and culminating in heating it and transferring the hot smoke back to the fish box.
Looking first at the preparatory steps, fresh air enters the underground system through a half-opened lid, which is placed farthest from the box . Subsequently, the flow of the fresh air travels through an underground passage before undergoing a heating phase, where a pile of wooden logs is fired up beneath the ground to heat the air gradually until it turns into hot smoke. Meanwhile, the closest lid is constantly closed to enhance the effectiveness of this transformation.
Turning to the processing stages, the hot smoke is later transported up to the fish box through a pipe to maintain a consistent level of heat and smoke inside the box.