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碗用久了里面变黑是否含铅

更新时间: 2021-11-15 12:13:02     

碗用久了里面变黑是釉质太薄了,不是含有铅。瓷器的含铅量是无法用肉眼准确测定的,瓷釉是不含铅的,釉彩才是铅的根源,所以食具应选择釉下彩的,可以减少铅的渗淅量。铅釉是低温烧制,一般作绿色或黄褐色;还说明瓷碗的质量不佳,表面光洁度不够,易积累微小的色素等颗粒,不容易洗干净;或者是放的食物水泡后都会有颜色的,经开水泡后更容易在碗里留下颜色;可以将碗润湿后取适量牙膏即可洗净。

关键词: 里面 是否

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