We must ensure that it is qualified. It is necessary to learn some selection techniques, namely, "a look, two smells, three hands touch." First of all, "a look" contains three aspects. The first is to look at the product label, the manufacturer's address, contact information, and whether or not the relevant certification has been obtained. The second is to see if there are impurities, facing the light, if there is uneven gray dust particles do not buy. The third is to look at the color, it is best to use transparent and colorless plastic products. Because, coloring is bound to add some additives, it will make the product less safe. For example, putting oil, vinegar, and beverages in colored plastic bottles melts a portion of the color masterbatch, and eating them is not good for health.
Second, smell the smell. Qualified plastic products smell nothing from the nose. If you smell uncomfortable after opening the lid, it is best not to buy it.
Finally, touch the texture. Qualified plastic product surface should be smooth, with a certain degree of strength and elasticity
Glass microwave oven
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