Have you ever eaten constellation ceramics _ How about constellation ceramics?

Are you still eating with poisonous ceramic tableware?

Exquisite ceramics make people fondle admiringly. The texture of the earth, the temperature of the flame, the stunning pattern and the radian of the device will make the product full of beauty and deeply touch our hearts. We will not hesitate to buy.

But at the same time, she will hurt us, because some of them are poisonous! (Of course, the main reason for the toxicity is that the business operation process does not conform to the specifications. It is recommended to buy edible utensils from formal channels as much as possible. )

Let's first have a brief understanding of the potential safety hazards (toxicity) in the ceramic production process.

Ceramic painting is divided into underglaze color, underglaze color and underglaze color.

The simple understanding is:

Under-glaze color (safety): first, paint colored materials on porcelain, and then hang the glaze into the kiln for firing.

More common: blue and white, blue and white multicolored and monochrome glazed porcelain.

Color in glaze (relatively safe): under the condition of high temperature and fast firing, ceramic pigment sinks into glaze when glaze melts, and is covered by glaze layer after cooling. Because the pigment is not in direct contact with food, the dissolved amount of lead (cadmium) is safe.

More common: blue and white underglaze red.

Overglaze color (it is recommended not to make edible utensils): First, fire white glazed porcelain, paint on white glaze, and then fire in the kiln. The second firing temperature is lower than the first firing temperature.

More common: pastel, multicolored, bucket color, enamel porcelain. More suitable for placing utensils.

Are you familiar with it? Grandma's house and grandma's house may have spoons painted on pink glaze.

At present, low-cost materials are basically chemical materials, and colored materials contain heavy metals (lead, mercury, etc. ). So it is conceivable whether the glaze color is safe.

Then there are some consumers who like containers with Phnom Penh.

These patterns in Phnom Penh or gold are all made of pure gold, printed with floral paper and then baked.

Note: when baking flowers, you should bake golden patterns at a higher temperature. In order to save gas cost, many enterprises may not reach the standard temperature of golden water color agent when baking flowers, resulting in excessive heavy metals in products.

The firing temperature of glaze color is only 600 to 900 degrees Celsius (not recommended as an edible vessel).

If you really like it, you can use it as a melon dish or a cold dish.

The firing temperature of coloured glaze is1060-1250 (relatively safe).

The underglaze color1200-1400 is fired at one time at high temperature (the safest).

Of course, as long as any link is done according to strict standards and procedures, even the processed products will not have the problem of excessive heavy metals.

However, as consumers, we: 1 bought it from a regular manufacturer. 2. Try to buy underglaze ceramic products (blue-and-white, blue-and-white multicolored and monochrome underglaze porcelain).

If there is anything wrong with the article, please point it out