Qing dynasty thick and vitreous deep bright red glaze, often featuring crackle or thick drops around the foot, turning red due to its copper content when fired in a reducing atmosphere.
Developed at the Kangxi imperial kilns at Jingdezhen, under the supervision of Lang Tingji (1663-1715) during the period from the 44th to the 51st year (1705-1712) of the Kangxi reign (1662-1722) of the Qing dynasty.
The Lang yao hong and its red monochrome variations appears to have been attempts directed at recreating the lost formula of the famous Ming dynasty Xuande period (1426-35) monochrome red. The different outcomes are known under many different names depending of it characteristics.
Langyao hong pieces are present in the Palace Museum collection.
While very successful in itself. an almost perfect version of the jihong was created as the Sacrificial red of the Qianlong period