Raw materials are the first concern of many Taoyou. CCTV once exposed the existence of man-made chemical mud in Zisha mud in the weekly quality report, which caused a great deal of public outcry, causing heavy damage to the consumer trust of Zisha.
Friends who know about Jianshui purple pottery will have a feeling that clay is not the most important concern of Jianshui purple pottery. Because Jianshui purple pottery focuses on decoration technology, its development time is relatively short, and it has begun to take shape in recent years, and the clay is still very sufficient. According to the book “2014 China Ceramic Art Yearbook”, Jianshui purple pottery currently has a mud reserve of about 2.07 million mu.
However, many ceramic friends still ask about purple clay. Purple pottery people will always introduce that purple pottery has a lot of clay storage, which is taken from the local area. It will not cause harm to human body and is natural and healthy.
Here, “natural health” can be interpreted separately
The meaning of “nature” is that it has been generated and formed naturally by various complicated geological activities for thousands of years, and it is not artificially made in the laboratory.
There are two kinds of mud used in the production of purple pottery: red mud and white mud. The two kinds of mud are made by mixing mud of other colors. Although mixed, the mud of other colors are collected from the natural mud, so the prepared mud is still natural.
The reason for mixing mud is to make it more suitable for making good pottery, or for special artistic effect. Therefore, it is normal that the proportion of one kind of mud is a little more and the other is a little less.
Therefore, the real meaning of Jianshui purple pottery clay “natural” is that it is made of natural clay.
The meaning of “health” here is to find out whether there are harmful substances in the mud, which will cause harm to the body, continue to deteriorate, and eventually form a certain disease.
What we usually call health is actually relative health, not absolute health. The air we breathe every day contains a lot of harmful substances, but we have never heard of anyone who causes fatal injury by breathing normal air.
Because the human body has its own immune system, it can find and remove harmful foreign bodies, and maintain the stability and physiological balance of the internal environment of the body. The amount of harmful substances in the normal air is within the regulation range of the immune system.
Although purple clay is natural, is there no harmful substance in it? I don’t think so. There are too few natural and harmless things in the world! The actual detection results also found that there are still very small lead, cadmium and other elements in the purple clay, but the content is very small, and the impact on human body is also very small.
In addition, Jianshui purple pottery is a kind of high-temperature pottery, and most of the elements such as lead and cadmium will be removed by melting when the firing temperature exceeds 1100 ℃.
Therefore, the real meaning of Jianshui purple pottery clay “health” is that, even if the purple clay contains trace elements such as lead and cadmium, the impact on the human body can be almost negligible by brewing tea in small teapots and cups. The impact is far less than the air volume of breathing in a day, and the autoimmune system is enough to deal with it.