No, according to official website, who inquired about Taobao, the Japanese Eternal Roasted Casserole has been screened by layers of quality inspection in Japan, and all the indicators are up to standard, so you can buy and use it with confidence. Wan Gu Shao, especially the casserole produced in Yang City, Mie Prefecture, Japan, is made from purple mud at a high temperature of 1200℃ to 1300℃, which has the advantages of high heat resistance and high heat preservation.