Traditional Culture Encyclopedia - Traditional culture - What's wrong with the mouth of old porcelain that sometimes looks black and dirty
What's wrong with the mouth of old porcelain that sometimes looks black and dirty
Firing reasons, cleaning reasons.
1, firing reasons: ceramics in the firing, the worker's firing techniques are not good, will lead to ceramics in the use of a period of time and the situation of the bowl color, after this situation so the first thing to consider is that the ceramic production errors.
2, cleaning reasons: the mouth of the old porcelain and black and dirty with the daily cleaning has a great relationship, the bottom of the bowl as daily cleaning is easy to be ignored, will leave a certain amount of dirt, long time not get effective cleaning, the bottom of the bowl will appear blackened,
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