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Chinese people eat not with silver forks, but with crystal 陶瓷碗 porcelain, one of the main figures on the Silk Road for thousands of years. Their usage rate on this land is even comparable to air. However, are those dazzling porcelains on the market really safe?
Ceramic tableware that does not meet the standard will be harmful to health, one way to teach you to identify
In this era when half of the country’s traffic is the take-out brother, many experts reminded everyone thousands of times: “Plastic tableware is often used for take-out. Some plastic heaters are poisonous, and some cannot even be reused.”
Someone thought, "Fortunately, we are all using porcelain bowls and porcelain plates." They couldn't help but smile fluke. but! Very good! Do you know that China is not always safe?
Unsafe mainly refers to heavy metals such as lead and cadmium that are easily released from porcelain tableware. If heavy metals accumulate in the body, they may damage the liver, kidneys and immune system.
Ceramic tableware that does not meet the standard will be harmful to health, one way to teach you to identify
How to judge whether the ceramic tableware is safe: Simply put, it mainly depends on two points: the raw materials of the ceramics and the firing of the ceramics.
Material safety: pay attention to the use of glaze color
The raw materials of ceramics include clay (body raw material), glaze (glaze raw material) and painting materials (decorative raw material).
The raw material of the green body is generally kaolin or clay, because it is natural clay or minerals without chemical addition, so it is basically safe.
Ceramic tableware that does not meet the standard will be harmful to health, one way to teach you to identify
So who is the bad guy?-Glaze and paint! Here, the professor needs to explain several concepts: overglaze, underglaze, and underglaze.
Underglaze
Ceramic tableware that does not meet the standard will be harmful to health, one way to teach you to identify
In-glaze
A layer of glaze is applied to the green body, then applied to the surface, and a layer of glaze is applied after completion. This is a decorative technique developed in the 1970s, mainly painting and decals.
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