Have you ever had the experience of buying a new porcelain bowl and washing it with water and using it?Or have you ever heard that a newly bought porcelain bowl needs to be boiled in boiling water to remove harmful substances?Are these practices really scientific?This article will uncover the correct treatment of porcelain bowls before using them for the first time, so that you can eat more safely and healthily.
Before using the porcelain bowl for the first time, it should be thoroughly washed with water and dish soap to remove dust and oil from the surface.
Before the first use, the porcelain bowl does not need to be boiled in boiling water, which will not remove harmful substances and may cause the porcelain bowl to crack or deform.
Before the porcelain bowl is used for the first time, it can be soaked in vinegar for a period of time, which can effectively remove heavy metal residues such as lead and cadmium in the porcelain bowl.
Porcelain bowls are commonly used tableware in our daily life, and its material is generally made of clay, quartz, feldspar and other natural minerals after high temperature firing. The advantages of porcelain bowls are that they are hard, wear-resistant, and not easy to scratch, and the surface is smooth, not easy to stain, and easy to clean. However, porcelain bowls also have some disadvantages, such as easy to break, impact resistance, and some porcelain bowls may contain some harmful substances on the glaze, such as lead, cadmium and other heavy metals, if used for a long time, may cause harm to human health.
So, how should we properly dispose of the newly bought porcelain bowl?First of all, we should pay attention to the selection of porcelain bowls with qualified quality, preferably with a certificate or inspection report issued by the national or local quality supervision department, so as to ensure the safety and hygiene of the porcelain bowl. Secondly, we need to thoroughly clean the newly bought porcelain bowl to remove dust and oil from the surface, which is the most basic hygiene requirement. We can clean the porcelain bowl with clean water and dish soap, wipe the inner and outer surfaces of the porcelain bowl with a brush or cloth, and then rinse it with clean water and dry it to dry or wipe it dry.
Some people think that it is a misconception that a newly bought porcelain bowl needs to be boiled in boiling water to remove harmful substances. In fact, the glaze of the porcelain bowl is fired at a high temperature and generally does not dissolve in water, so cooking the porcelain bowl with boiling water cannot remove harmful substances. On the contrary, boiling the porcelain bowl with boiling water may cause the porcelain bowl to crack or deform, because the thermal expansion and contraction coefficient of the porcelain bowl is very large, and if the temperature changes too quickly, the porcelain bowl will be affected by thermal stress, resulting in cracks or deformation.
So, is there any way to remove harmful substances from porcelain bowls?The answer is yes, and that is to soak the porcelain bowl in vinegar. Vinegar is a weakly acidic liquid, which can chemically react with heavy metals such as lead and cadmium in porcelain bowls to produce water-soluble salts, so as to achieve the purpose of removal. The specific method is to put the newly bought porcelain bowl into a large container, pour in enough vinegar, let the porcelain bowl completely soak in vinegar, soak for 2-3 hours, and then take out the porcelain bowl, rinse it with water, dry or wipe it dry, and it can be used.
Before using the porcelain bowl for the first time, it should be thoroughly washed with water and dish soap to remove dust and oil from the surface. Before the first use, the porcelain bowl does not need to be boiled in boiling water, which will not remove harmful substances and may cause the porcelain bowl to crack or deform. Before the porcelain bowl is used for the first time, it can be soaked in vinegar for a period of time, which can effectively remove heavy metal residues such as lead and cadmium in the porcelain bowl. These methods are based on scientific principles and the results of experiments, and hopefully will help you properly dispose of your newly purchased porcelain bowls, so that you can eat more safely and healthily.
What do you think about the correct treatment of porcelain bowls before using them for the first time?Do you have any other scientific questions you'd like to know?Welcome to leave a message in the comment section and explore the mysteries of science with me!