what is the common knowledge of plastic packaging?

- Dec 23, 2019-

While we are concerned about food safety, we must not ignore the safety of plastic containers for food.Here, let us popularize some common sense of plastic packaging.Waterproof plastic case for phone

Material labels for plastic containers

Generally speaking, the logo of plastic container is at the bottom, there is a triangle symbol, triangle inside there are Numbers 1 to 7, each number represents a plastic container, because they are made of different materials, so there are different taboos.

It is roughly: marked with the number "1", for common mineral water bottles, carbonated beverage bottles, etc., heat resistant to 70℃ easy deformation, harmful substances to human body melt out, after 10 months, may release carcinogens;

Marked with the number "2" for use in detergent, shampoo, shower gel, cooking oil, pesticide, etc. Do not use as a water cup, or as a storage container for other items, do not recycle;

Marked with the number "3", it is mainly used to make water pipes, raincoats, schoolbags, building materials, plastic film, plastic boxes and other utensils, with good plasticity and low price. It is easy to produce bad substances at high temperature and rarely used in food packaging.plastic packaging box

Marked with the number "4", it is often used to make plastic bags that can be seen everywhere. When the temperature is high, harmful substances are produced. When poisonous substances enter the human body with food, they may cause breast cancer, neonatal birth defects and other diseases.

Marked with the number "5", it is mainly used to make buckets, garbage cans, baskets, baskets and food containers for microwave oven, etc. The melting point can be up to 167℃, is the only plastic box that can be put into microwave oven, can be reused after careful cleaning;

Marked with the number "6", because of the low water absorption, more used to make building materials, toys, stationery, rollers, and fast food store to serve the cup and box or disposable cutlery, avoid such fast food box package hot food, do not use microwave cooking bowl instant noodles;

Marked with the number "7", this material is often used to make such as kettles, space cups, milk bottles and so on.plastic pacakging box

Try not to use disposable cutlery

Although some enterprises under the pretext of environmental tableware, starch-based tableware or degraded tableware, the product quality has no small safety hidden trouble. The reality is that the degraded tableware does not degrade, and the environmental food box is not environmentally friendly, which will bring serious hidden trouble to the health of consumers.

When consumers use such disposable cutlery, they unknowingly eat not only the food but also the plastic, paraffin wax and stone powder in the snack boxes.Besides buy and use disposable cutlery, can let these disposable thing become rubbish directly, not only waste resource, and destroy environment, it is very not "green" consumption.

Low temperature heating of beverage bottles is not a problem

Polyethylene terephthalate plastic (PET) is used for mineral water bottles, carbonated beverage bottles and other materials, heat resistance to 65℃, cold resistance to -20℃, suitable for filling warm or room temperature beverages.According to investigation, the temperature of beverage heating cabinet in convenience store is mostly controlled below 50℃.So, if you heat it at a low temperature, you don't have to worry too much about the plasticizer leaking out of the bottle.

Plastic does deform when heated, and studies have reported that soft drink bottles may release plasticizers after 10 months of continuous use, so do not use them as water containers.

There have also been reports online that bottled water exposed to the sun in the car will produce plasticizer and other harmful substances, but in recent years, domestic studies have confirmed that the full package of bottled water exposed to the sun in the car for 7 days without plasticizer precipitation, the total number of bacterial colonies did not change significantly.Clear PET Clamshell Containers1

However, if you open a bottle of drinking bottled water, due to the entry of external bacteria, in high temperature conditions, it is easy to lead to the growth of bacteria.

Plastic tableware regardless of whether "foam" safety hidden trouble is very big

Disposable polystyrene foamed plastic tableware is forbidden to be used in China.However, disposable polystyrene tableware, whether or not foaming, if the use of temperature more than 90℃, or in the microwave after heating, will precipitate harmful substances.

In addition, disposable plastic cutlery can also contain carcinogenic fluorescent substances, which are not safe for consumers' health.Toxic and harmful chemicals, the harm to the human body and the environment is insidious and chronic, may feel nothing, day by day, gradually accumulated gradually tired, once something will regret it too late.