1. The commonly used plastic tableware is basically made of polyethylene and polypropylene. This is a non-toxic plastic approved by most national health authorities, but polyvinyl chloride, which has a similar molecular structure to polyethylene, is a dangerous molecule. A rare hepatic hemangioma has been found, which is almost related to people who often contact PVC.

2、一般说来，铁制餐具性。但铁器易生锈，而铁锈可引起恶心、呕吐、腹泻、心烦、食欲不佳等疾病。铁制容器也比宜盛油类物质，因为油类在铁器中存放时间太久易氧化变质。

2. Generally speaking, iron tableware is nontoxic. But iron is easy to rust, and rust can cause nausea, vomiting, diarrhea, upset, poor appetite and other diseases. Iron containers are also more suitable for oil, because the oil stored in iron for too long is easy to oxidize and deteriorate.

3、瓷器过去被公认为是餐具，但近年来也有瓷器餐具使用中毒的报告。原来有些瓷器餐具的漂亮外衣(釉)中含有铅，如果烧瓷器时温度不够或者涂釉配料不符合标准，就可能会使餐具含有较多的铅。当食物与餐具接触时，铅就可能溢出釉的表面混入食物中。因此，那些表面多刺、多斑点、釉质不够均匀甚有裂纹的陶瓷产品，不宜做餐具。

3. Porcelain used to be regarded as non-toxic tableware, but in recent years, there are also reports of poisoning caused by the use of porcelain tableware. It turns out that the beautiful coat (glaze) of some porcelain tableware contains lead. If the temperature is not enough when firing porcelain or the glaze ingredients are not up to the standard, the tableware may contain more lead. When food comes into contact with tableware, lead may spill over the glaze surface and mix into the food. Therefore, it is not suitable to make tableware for those ceramic products with prickly and spotty surface, uneven enamel and even cracks.

4、不锈钢餐具美观大方、轻便好用、耐腐蚀不生锈，颇受人们青睐，不锈钢是由铁铬合金掺入镍、钼等金属制成，这些金属中有的对人体有害，因此使用时应注意，不要长时间盛放盐、酱油、醋等，因为这些食物中的电解质与不锈钢长期接触会发生反应，使有害物质被溶解出来。

4. Stainless steel tableware is beautiful and easy to use, easy to use, corrosion-resistant and not rusty, it is popular. Stainless steel is made of iron chromium alloy mixed with nickel, molybdenum and other metals. Some of these metals are harmful to human body. Therefore, attention should be paid not to put salt, soy sauce, vinegar, etc. for a long time, the electrolyte in these foods will react with stainless steel for a long time, making harmful substances The substance is dissolved.

5、铝制餐具轻巧耐用，物美价廉，但铝在人体内积累过多，有加速衰老的作用，对人的记忆力也有一定得不良影响。铝制餐具不宜烧煮酸性和碱性食物，也不宜用来久存饭菜和长期盛放含盐食物。

5. Aluminum tableware is nontoxic, light, durable and cheap. However, aluminum accumulates too much in human body, which can accelerate aging and has a certain adverse effect on human memory. Aluminum tableware is not suitable for cooking acidic and alkaline food, nor is it suitable for long-term storage of food and salt food.

6、选陶瓷餐具时不要选用釉上彩装饰的，特别是陶瓷餐具内壁不要彩绘。可选用釉下彩或釉中彩装饰，如青花就是一种人们喜欢以釉下彩装饰的陶瓷。

6. When choosing ceramic tableware, do not choose glaze color decoration, especially the inner wall of ceramic tableware should not be painted. Can choose underglaze color or in glaze color decoration, such as blue and white is a kind of ceramics that people like to decorate with underglaze color.

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