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Material Safety of Electric Kettles: A Guide to Avoiding Health Hazards

The material of the pot body and inner liner directly affects drinking water safety. Currently, the mainstream materials in the market can be divided into three categories: food grade stainless steel (304/316), high borosilicate glass, and food grade plastic.


Published:

2025/12/23

Material Safety of Electric Kettles: A Guide to Avoiding Health Hazards

The material of the pot body and inner liner directly affects drinking water safety. Currently, the mainstream materials in the market can be divided into three categories: food grade stainless steel (304/316), high borosilicate glass, and food grade plastic. 304 stainless steel must comply with the GB 4806.9 standard, with a manganese content not exceeding 2%. When purchasing, the "Stainless Steel for Food Contact" label on the inner wall can be checked; 316 stainless steel has better corrosion resistance due to the addition of molybdenum element, making it suitable for areas with hard water quality. Although high borosilicate glass has no risk of metal leaching, attention should be paid to whether the sealing ring of the pot lid is made of food grade silicone, as inferior rubber may release harmful substances. The plastic pot body should be made of PP5 (polypropylene) material, which is resistant to high temperatures and has strong chemical stability. Avoid using products labeled with "PC" or not labeled with the material to prevent the release of bisphenol A at high temperatures. In daily use, stainless steel pots should be avoided from storing acidic beverages for a long time, and glass pots should be protected from sudden cooling and heating that may cause breakage.

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