Triangle at the bottom of each article there is a plastic with an arrow, the "regenerate" flag. There are 1-7 different from the Arabic numerals, Arabic numerals, representing the plastic material of different properties and different uses. Plastic products like identity proof.
The number "1" representing the plastics material for PET, namely polyethylene terephthalate, a common mineral water bottles, soda bottles, heat-resistant to 70 ℃, deformation, there are harmful substances dissolved; use after 10 months, may release carcinogenic DEHP; can not be placed on the car sun, can not install wine, oil substances. Such identification of the bottle after use can not continue to hold water, please throw in recyclable trash, let it be recycled.
The number "2" of the plastic material is HDPE, common to cleaning supplies, shower products bottles. Not used for food packaging.
The number "3" represents that the plastic material is PVC. When this material is likely to have a high temperature harmful substances, even in the manufacturing process even it will release toxic substances into the body with food, may cause breast cancer, neonatal birth defects and other diseases. Containers of this material has been rarely used in food packaging. If you are using, do not let it heat.
The number "4" on behalf of the plastic material is LDPE. General products as plastic wrap, plastic film. Heat resistance is not strong, usually qualified PE cling film in case the temperature exceeds 110 ℃ melt phenomenon occurs when, will leave some of the body can not break down the plastic formulations. Also, wrap with plastic wrap food heating, food grease is very easy to dissolve out of the plastic wrap the harmful substances. Therefore, the food into the microwave oven, first remove the cling film wrapped.
The number "5" of the plastic material is PP. High temperature, common in microwave meal. Can be reused after careful cleaning. Special attention needs some microwave food containers, box 5, PP manufacturing indeed, but the lid is No. 1 PE manufacturing, PE can not withstand high temperatures, it can not be put in the microwave with the box body. For insurance purposes, the container microwave oven before, first remove the lid.
The number "6" on behalf of the plastic material for the PS. More common in the bowl of instant noodles box, snack. And heat and cold, but not into the microwave oven, so as to avoid high temperature and release of chemicals. And can not be used to contain a strong acid (such as orange juice), strong alkaline substances, because the human body will break down bad polystyrene, are carcinogenic. Therefore, you should try to avoid hot food snack packaging.
The number "7" on behalf of the plastic material other than PVC and polystyrene synthetic material material or plastic material. More common in water bottles, cups, bottles. High temperature, can be used repeatedly, but can not be heated in a microwave oven.
Distinguish different plastic materials and uses your home may wish to conduct a large plastic tableware check it, those harmful to health plastic cutlery removed. In everyday life, when buying cooked food, snacks and other directly imported food, utensils or best comes standard plastic grocery bags. Outside of disposable plastic lunch boxes or bags of toxic substances will penetrate into the food. Fridge chilled, frozen food should be fresh with plastic wrap or bags, do not use ordinary plastic bags instead. Daily drinking water, eating better to use porcelain, or glass bowl, glass bowl. Click http://www.nblinhua.com to know more information.