The shape of pottery becomes to be various and color tone, hardness show fundamental changes from in Honam area the Proto-Three Kingdoms to Three Kingdoms Period. These chenges in pottery production come from work technique of advanced kiln. This writer, therefore, intended to restore work form of pottery kiln operated in Honam from the Proto-Three Kingdoms to Three Kingdoms Period in this paper. For this, this study closely investigated relics excavated and tested firing of pottery with making kiln in person.
The test result for firing is that although pottery was experimented in same kiln, it was tinged with red line in the case of oxidizing atmosphere in firing pottery and tinged with gray line in case of reducing atmosphere in firing pottery. It is analysed to be result that color tone of firing production in the kiln was influenced not by firing devices, but by treatment of intercepting fire. Pottery of red line can be also possible to be hard firing like hard porcelain. That is to say, the highest firing temperature is important for hardness of pottery, and color tune can be regulated as one wishes.
Analysis for pottery excavated in kiln showed that pottery of soft red line was excavated much more than pottery of gray line in the first stage and this proportion became to be reverse in the second stage. The quantity pottery of gray line with hard porcelain grows at exponential rate in the second part of the second stage.
Through this result, pottery kiln in Honam from the Proto-Three Kingdoms to Three Kingdoms Period indicates changes in color tone and hardness of pottery, developing from first stage to second stage. It is estimated that firing mode of pottery became to be active and be developed in this course. In short, pottery which don’t need firing in kiln uses open firing structure. It is guessed that this make firing mode stable, compared with early days kiln appeared, and technical changes were made in kiln work as well. It is suggested that this also controlled firing atmosphere in kiln work, and these techniques were adjusted by the subject of that technique, pottery producer’s need.