The figure of bottom of the bottle represents the plastics are safe 1 2 4 5 is the safest

The figure of bottom of the bottle represents the plastics are safe 1, 2, 4, 5 is the safest
From the plastic bag, plastic wrap to water cup, lunch-box In the modern's house life, are full of plastic products everywhere. Their appearance, let people's life be more convenient, but its security is queried. Recently, U.S.A.'s magazines of " close friends of women " publish the article to point out, the plastic products are in choosing and using, so long as know some knacks, use safer.
In the face of displaying seemingly the same plastic products of material on the shelve, a lot of people have difficulty in choosing. In fact, if you want to distinguish materials safe, only need to see the figure on the plastic container bottom. Generally speaking, the plastic products bottom of different materials mark 1- 7 figures respectively, material type, safe information reflect that should pay attention to while buying in these figures.
It is safest to mark 1, 2, 4, 5. Annotate and is generally used for making mineral water bottle, beverage bottle,etc. as the plastic material of 1, 70 highest and heat-resistingest, the great majority are the disposable goods; Annotate and is often used for producing the medicine bottle, food plastic bag,etc. for the material of 2, can be able to bear 110 high temperature; 4 is used for making plastic wrap,etc.; 5 is used for producing products such as microwave oven meal box,etc., can be able to bear 130 high temperature.
You had better not select 3 and 6. Annotate, use plastic membrane products, the easy to produce noxious substance material for often for 3 plastic material; 6 is often used in the snack box, meeting high temperature, acid alkali will decompose out the easy and carcinogenic polystyrene. So, try hard not to bale the bolling hot food with the snack box.
Figure 7 include pairs of the intersection of phenol and A, want careful to spend. Used for making products such as feeding bottle, space cup,etc. more. In the past two years, the whole world is about " a pair of phenol A is carcinogenic " Dispute differ,there are on but a unquestionable one, getting harmful to human more body really in A in phenol in pair, and this kind of danger is long-term. Should pay attention to while using, don't hold the hot water with such plastic container, or sterilize at high temperature, because a pair of phenol A will be released in the high temperature of over 100 out.
Having introduced material and performance of the plastic products, it is easy to find, guarantee the formidable opponent of its security is high temperature. So, in usual's use, try hard to hold little hot water, hot food, it is not the microwave oven specialized plastic products, don't heat with microwave oven. In addition, the plastic products are not put in the refrigerator for a long time, especially the freezer, will cause the plastics to degrade at low temperature, increase the harmful chemical material and enter danger in food. Had better remove the plastic bag or take in the box out from keeping fresh while unfreezing. (Chen ZongLun)
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