Monochrome pure red glaze porcelain to the Ming Dynasty Yongle, Xuande North Korea, the only real success! Due to the high temperature red enamel firing is extremely difficult, folk circulating with "kiln hard to burn a" and "if poor, burning red" language. In ancient times to burn high-temperature pure red glaze porcelain, you must, regardless of cost, at any cost (using a lot of manpower, material and financial resources, and very rare ruby into the glaze for firing), such material conditions and firing process Only then was the "Royal Imperial Kiln" capable of accomplishing any civil kilns are impossible.
