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|Halacha - kashering of used 'china' dishes|
|Submitted by Shmuel of Tzfat Answered by Rav Peretz Moncharsh|
While china/porcelain is technically pottery/cheres which can not usually be kashered, in the case of plates most Poskim are lenient. Since the dishes are never placed directly on the heat source they are generally a kli shlishi, two steps removed from the source of heat, and therefore according to Halacha it is questionable if they have absorbed non-Kosher flavor at all. So the best thing to do is to immerse them in boiling water 3 times with all the Halachos of hagola, preferably changing the water and rinsing the dishes in between each time. Afterwards they may be considered Kosher for future use.