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[China Glass Net] Glass tableware is a commonly used packaging container or contact vessel for its advantages such as crystal clear, clean and beautiful, and good sealing performance. According to professionals from the Changzhou Import and Export Industry and Consumer Product Safety Testing Center, although glass products have been loved by consumers, glass and surface patterns have the risk of heavy metals such as lead and cadmium. Long-term intake of heavy metals can cause cancer. , teratogenic and mutagenic hazards.
At present, the quality of glass tableware on the market is mixed, and how to identify the quality of the product at the time of purchase is particularly critical. Professionals suggest that in general, consumers can identify the advantages and disadvantages of glass tableware through the following three aspects: First, visual inspection of the surface, high-quality glass, bright color, high refractive index, smooth surface, lightly tapped with crisp metal Sound; while the inferior glass is dull, the workmanship is poor, and some places are also doped with bubbles, and the sound is also boring. The second is to observe the color. Colored glass will add metal compounds to form different colors during the production process. These metal compounds will cause heavy metal residue. Therefore, when purchasing, try to choose a colorless and transparent glass. If you have color, you should also choose the one that is not too bright in color and evenly distributed. The third is to observe the printed pattern. First, the pattern should be printed on the outer wall of the tableware, and it should not be in direct contact with the lips. Secondly, the pattern should be smoother to the touch, and the paint should not be peeled off with the nail. This kind of process is often used in underglaze or glaze, and the lead and cadmium in the paint can be "wrapped" by the glaze and is not easily dissolved.
In addition, consumers should be reminded that they should choose products with product certification marks and use glass tableware according to the instructions on the instructions. Improper use can also affect the safety of glass products. For example, when ordinary tempered glass is placed in a microwave oven for heating, a bursting phenomenon may occur, which may affect the personal safety of the consumer. In addition, the use of lemonade or soaked overnight with an aqueous solution of vinegar will greatly reduce the dissolution of metals such as lead and cadmium in subsequent use.
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