Plastic food packaging material variety

Instructions

Beverage bottles can be reused

According to experts, the commonly used beverage bottles in the market are polyethylene terephthalate (PET) and high-density polyethylene (HDPE). PET bottles are mostly used for holding mineral water, carbonated drinks, etc.; HDPE bottles are mostly used for loading milk. Experts reminded that beverage bottles can only be used once. Try not to reuse them, and do not use hot water or hot drinks. It is also not advisable for some consumers to use beverage bottles to contain seasonings such as old wine, vinegar and soy sauce. According to reports, there have been reports that a 12-year-old girl from the United Arab Emirates had cancer after drinking water in the same water bottle for 16 consecutive months.

Use plastic wrap to see the material mark

For the plastic wrap that is also made of plastic material, how can the public use it properly? According to experts, food cling film can also be classified into polyethylene (PE), polyvinyl chloride (PVC), and other materials. PE cling film can be used for all kinds of food, such as meat, cooked foods, fat foods, bean products, vegetables, fruits and other protection and packaging. Experts believe that even if the cling film is labeled “Microwave heating or high temperature use”, users are advised to use it with caution. So far, no authoritative experimental data show that the polyethylene cling film is safe under this condition. PVC cling film, on the other hand, cannot touch foods with fats, it must not be heated in a microwave oven, and it must not be used at high temperatures.

The use of metal containers also need to pay attention

After the plasticizer turmoil, many people chose to use juicers and other small appliances to make their own juices. However, experts have warned that the safety of metal products, the public must pay attention to distinguish.

It is understood that metal packaging containers are mainly stainless steel utensil containers and aluminum utensil containers. Stainless steel is made from iron-chromium alloys that incorporate other trace elements. The main food safety problem for aluminum products is impurities in cast aluminum and recycled aluminum. Metal containers contain foods with high levels of acidity, alkalinity, and salt, which easily dissolve metallic hazardous substances.

market survey

Many beverage packaging difficult to find "PET" trace

An interview with a reporter in a supermarket yesterday revealed that most beverage bottles are currently made of PET. According to the requirements of the national standard "GB/T18455-2010 Packaging Recycling Marking", the plastic containers and packages whose volume exceeds 100 ml must be marked in an intuitive manner with the recycling symbols of the plastic types, printed or engraved in the plastic packaging materials.

However, the reporter found that there are still many beverage bottles still hard to find "PET". In Wal-Mart, the reporter saw that Coca-Cola's “Miso Juice Orange” was not printed directly on the bottom of the bottle, but could be found on the surface of the bumps; while the “fruit orange” was another. Drinks, the reporter found in the bottle several times did not find the "PET" logo, and finally in the bottle near the bottom of the place faintly saw the "PET". Master Kong Jasmine tea's "PET" logo is hidden in the interior of its outer packaging paper, must be removed to see this layer of paper; and another Master Kong's oolong tea drinks, the reporter has never found this sign.

Please see the number in the recyclable triangle mark at the bottom of the bottle

Attentive consumers may find that some plastic beverage bottles are marked with “PP”, “PET” and other letters directly on the bottle body to indicate its material. However, many beverage bottles are not directly labeled, but an Arabic numeral is added to the recyclable triangle mark on the bottom of the bottle. It is understood that these figures actually represent the material of the beverage bottle.

1 stands for PET (polyethylene terephthalate): heat-resistant to 70 degrees Celsius, easily deformed, and substances that are harmful to the human body dissolve out. Prolonged use may release the carcinogen DEHP. Can not be placed in the car sun, do not install wine, oil and other substances.

2 stands for HDPE (High Density Polyethylene): It is resistant to high temperatures, but it is not easy to clean, it is easy to breed bacteria, and it should not be recycled.

3 represents PVC (polyvinyl chloride): raincoats, building materials, plastic films, plastic boxes, etc., are rarely used for food packaging.

4 stands for LDPE (low density polyethylene): used for cling film, plastic film and so on. Hazardous substances are produced at high temperatures, so do not put the plastic wrap into the microwave oven.

5 stands for PP (Polypropylene): The only plastic box that can be placed in a microwave oven and can be reused after careful cleaning.

6 stands for PS (Polystyrene): It is used to make bowl-type instant noodle boxes and instant noodle boxes. It cannot be heated in a microwave, and it cannot be used for strong acidic (such as orange juice) or strong alkaline substances. Avoid hot foods.

7 stands for PC (polycarbonate) and others: It is mostly used to make baby bottles, space cups, etc. Try not to hold boiling water. It is easy to release the toxic substance bisphenol A. Don't use it when heating. Do not expose it to direct sunlight.