Diagram : cooking equipment

The diagrams below show stages in the development of simple cooking equipment. Summarize the information by selecting and reporting the main features, and make comparisons wherever relevant.

The diagram illustrates the upgrowth of cooking equipment.

In general, this equipment undergoes three stages of development from basic to advanced ones. 

To specify, in the first stage, cooks use stones and put them under the vase before small pieces of wood are inserted between stones and fired to heat the food inside the vase.Subsequently, the device changes with the support of a clay shield covering stones and wood to keep the fire and fasten the process of cooking. 

In the final stage, there are significant improvements in the structure of cooking equipment. This item contains two parts which play a different role. While the upper part includes support for port, a handle to carry, clay lining and grate for charcoal, the lower one made of metal is designed with a door to let air come in and ash go out during the process of firing. 

Strikingly, only by dint of the appearance of new sections added to the cooking equipment can cooks find it easier to cook.