The illustrated picture represents the structure of home smokery and the way it is used. It is a process that includes various steps and each of them should be discussed.
Overall, it is clearly visible that the prevail majority of steps are done deeply under the ground level. Moreover, air streams are highly necessary during all stages.
Looking through all the details, during the first stage cool air goes through the open lid and flows down. Later cool air goes through the thin tube and enters a special space. There is a huge number of logs that are later burned. It is remarkable that during this stage the lid should be closed. Then the heated air rushes through the special pipe into the smokery box. However, before entering this box the air has to go through the couple of bricks. In the box fish and meat are hung under the ceiling. The heated air rises and reaches food which is later becomes smoked. Finally, after all these steps products are ready to be sold or consumed by people.