The physical properties of glass products are poor, and they are more fragile than porcelain products when encountering impact, knock, cold and hot mutation. Therefore, even if there is glass tableware, most of them are tempered glass, with high cost. Therefore, among non porcelain tableware, plastic meal has price advantage, while metal meal has physical property advantage (hot, heat insulated)
Glass processing belongs to thermoforming processing, and the processing process is complex, requiring high machine costs, while porcelain can be large or small, or even can be produced in small workshops, which greatly reduces the introduction of porcelain tableware and makes porcelain tableware more popular.
My personal aesthetic view is very poor, but the porcelain tableware is white and beautiful with a simple outline. On the contrary, due to the limitation of processing conditions, glass tableware is mostly transparent and frosted, supplemented by a small amount of monochrome. After the dishes are loaded, the judge will be made.
The head of a drinking glass should be a glass. Don't think that glass is just transparent and beautiful. Of all the materials, glass is the healthiest. The glass does not contain organic chemicals in the process of firing. When people drink water or other drinks with glass, they do not have to worry about the chemicals being drunk. Moreover, the glass surface is smooth, easy to clean, and bacteria and dirt are not easy to breed on the glass wall. Therefore, it is the healthiest and safest for people to drink water with glass. In addition, experts also advocate the use of enamel cups, because enamel cups are made after thousands of degrees of high temperature enameling, and do not contain lead and other harmful substances, which can be used safely.
It is difficult for glass to make the delicate feeling of porcelain products. For the same bowl, the glass is often thicker and heavier.
The head of a drinking glass should be a glass. Don't think that glass is just transparent and beautiful. Of all the materials, glass is the healthiest. The glass does not contain organic chemicals in the process of firing. When people drink water or other drinks with glass, they do not have to worry about the chemicals being drunk. Moreover, the glass surface is smooth, easy to clean, and bacteria and dirt are not easy to breed on the glass wall. Therefore, it is the healthiest and safest for people to drink water with glass.
and It is common in life. They should say that they have their own shortcomings and advantages. It can't be generalized to say whether glass or ceramic cups are better. The advantage of glass is that it looks clean and healthy. It has no toxic and side effects and does not contain some chemicals. The advantage of ceramic cups is that its main component is clay, It also belongs to a non-toxic and harmless cup.
Which is better, glass cup or ceramic cup, needs specific analysis. Generally speaking, glass is the healthiest of all cups, and it does not contain any harmful substances. However, ceramic cups without colored glaze on the inner wall are as healthy and non-toxic as glass cups, so you need not worry about harming your body when using them.
Advantages and disadvantages of glass Among all types of glasses, glass is the healthiest. Because it does not contain any harmful chemicals, you need not worry about ingesting chemicals when drinking water with it, thus affecting your health. The glass is smooth and easy to clean. Just note that the thermal conductivity of the glass is not very good, so try to shake the glass body with a small amount of hot water first to preheat it, so as to prevent the glass from bursting. Of course, you can also buy glasses with thin walls.
Advantages and disadvantages of ceramic cup 1. Ceramic cup without colored glaze
The main component of ceramic cup is clay, which will form a layer of glaze on the surface of clay after high-temperature calcination. Under normal circumstances, there are no harmful substances in this glaze, so ordinary ceramic cups are as harmless as glass cups, and drinking water with them will not harm your body.
2. Ceramic cup with underglaze color
When we buy ceramic cups or other ceramic products, we will find that there are some patterns on the inner wall or surface of the cups. The raw materials of these patterns are pigments. But the pigment in the ceramic cup with underglaze color will not leak out. Because this kind of cup is painted first and then calcined at high temperature, the pigment already exists under the glaze, and generally the harmful substances in the pigment will not seep out. So the ceramic cup with underglaze color is also a kind of healthy and environmentally friendly cup.
3. Overglaze ceramic cup
In addition to the ceramic cup with underglaze color, some businesses will paint on the glaze and then fire it in order to pursue the three-dimensional and aesthetic sense of the picture. This is the ceramic cup with overglaze color. The harmful substances in the pigment of the cup are easy to seep out, thereby endangering people's health. Therefore, try not to choose this cup for drinking water.
Among many types of cups, glass is the best. Of course, ordinary ceramic cups and underglaze colored ceramic cups have the same effect as glass cups, and have no harm to human body. But no matter what cup it is, it must be cleaned on time, because the cup is easy to hide dirt, and if it is not cleaned frequently, it will lead to bacterial invasion.
