First, the choice of ceramic tableware
Ceramic tableware is widely used because of its diverse shapes, smooth feel and easy cleaning. Some consumers choose glazed tableware because they like beautiful colors. I don't know that these tableware have brought great harm to the health of myself and my family.
The production methods of ceramic tableware are divided into three types: over-glaze color, in-glaze color and under-glaze color. Among them, the glaze color is directly coated on the tableware with pigment, or pasted on the tableware after being made of pigment, and then calcined at low temperature to make the pigment adhere to the ceramic surface. The pattern formed by this method can't sink into the glaze, because the low-temperature calcination temperature can't reach the level of melting the glaze. The method of distinguishing glaze color is simple. If you touch the pattern with your hands, you can feel the obvious unevenness. Under-glaze color is to dissolve all the patterns in the glaze, and the patterns are also smooth by hand.
Glaze pigments contain many harmful metals such as cadmium, lead, mercury and radium. Among them, radium is a radioactive element, which will kill white blood cells in human body and reduce human immunity. Cadmium, lead and mercury are all heavy metals, which have great influence on human organs. If glazed ceramic tableware is used to hold food rich in organic acids such as wine, vinegar and vegetables in a blender, the heavy metals on the tableware will dissolve in it and be absorbed by the human body, which will lead to chronic heavy metal poisoning after years of smoking.
At present, many ceramic tableware sold in the market are from small workshops. This kind of tableware uses pigments with high lead and cadmium content, and the calcination temperature is not enough in the production process, which leads to the pigment floating on the surface. Long-term use of such tableware is self-evident.
Second, the choice of glass tableware
Nowadays, glass tableware is deeply loved by consumers because of its high hardness, stable chemical properties, smooth surface, easy cleaning and environmental protection. Ordinary glass tableware is harmless and can be used safely. But some people prefer beautiful tableware, so they choose crystal glass tableware, which poses a threat to their health.
Generally, crystal products contain a lot of lead oxide, with the content as high as 20 ~ 30%. Therefore, when containing some acidic solutions such as wine, cola and honey, these lead will be dissolved in them and absorbed by the human body. Therefore, crystal glass products are called "beauty killers" by scientists.
(The above answers were published on 20 16-0 1-27. Please refer to the current actual purchase policy. )
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