Long burning period, it takes several months to burn the works completely.
We burned the 85m Klin for 107 days(24hrs a day) continuously.
In usual cases of Bizen, it takes 1 to 2 weeks. Other ceramics in Japan are normally completed in 1 to 3 days.
Huge amount of woods burning makes very thick and complicated natural glaze.
Huge internal space leads to very complicated colors and patterns of ceramics by natural.
Need to assemble various skills of many professionals. It is completely different from the current individual smaller Klins.