After the Revolution of 1911, there was a massive loss of old collections and palace relics in the Forbidden City. At this time, these used to be almost unknown outside China, even ordinary Chinese themselves do not know much about the official kiln porcelain continue to show in the world. 
when some tourists visit several foreign museums and see some official kiln porcelain in the collection, they take it for granted that the lofty evaluation of Chinese porcelain in western history is aimed at the official kiln. This is really a historical misunderstanding.
The spread of official kiln porcelain among the folk