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Is the heated plastic meal poisonous? Teach you how to use plastic tableware correctly

Views:0     Author:Site Editor     Publish Time: 2020-11-09      Origin:Site

Those who bring meals, bring meals to babies, can you use plastic lunch boxes? I heard that plastic lunch boxes are poisonous when heated! ! Mothers don’t like to use it, so how do we use plastic tableware?

1. Plastic tableware is uneven, it's time to change

Plastic products also have a shelf life. After the expiration date, the plastic will age, become discolored and become brittle. If the plastic box used is found to be yellow or no longer transparent, it should be replaced as soon as possible. Therefore, there are always people on the Internet saying, “Plastic lunch boxes have been used for a long time, and there will be unevenness inside, and the missing part will be eaten into the stomach.” Don’t believe it~ Therefore, consumers must pay attention to plastic products. The shelf life. At the same time, aging plastics may release substances that may be harmful to the human body. As for the "life" of a plastic lunch box, it depends on personal use and cleaning methods. The shelf life of most plastic products is generally about three to five years. If it is used frequently, it is better to replace it in one to two years.

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2. These foods cannot be placed in plastic lunch boxes

The bubbling of carbonated drinks (soda, cola, etc.) will lose the sealing ability of the plastic lunch box. Foamed food, fermented food, hot food, etc. will reduce the sealing performance of the plastic lunch box. Please avoid storing this in a plastic lunch box. Kind of food.

When used in a microwave oven, if the food contains a lot of oil and sugar, the plastic lunch box will be deformed if the temperature rises rapidly. Therefore, to heat the above-mentioned food, it is best to use a microwave oven special box.


3. Is heating plastic tableware toxic?

We first need to know what will be added to the plastic lunch box? Yes, there is a substance called plasticizer. Plasticizers can enhance the flexibility of plastics, making them easier to process and plastic, and have been widely used in industry. Therefore, plastic products are very easy to release plasticizers after heating. At present, the commonly used plasticizers in the market mainly include DBP, DEHP, DINP and DIDP, etc.

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Each plastic has its heat resistance limit. Among the materials used for food, polypropylene (PP) can withstand 140°C, followed by polyethylene (PE), which can withstand 110°C, while polystyrene ( PS) can only heat up to 90°C. Currently commercially available plastic lunch boxes for microwave ovens are mainly made of PP or PE. If the temperature exceeds their heat resistance limit, the plasticizer may be released. Therefore, long-term use of high-temperature plastic lunch boxes to reheat food should be avoided. 


4. Plastic tableware, you want to use it like this!

Plastic lunch boxes are best to only heat water-filled foods such as porridge and soup. For meat foods, including high-sugar foods, it is best to use porcelain or glass when microwave heating.

If plasticizers are used in food containers and food packaging materials, they must not come into contact with oily foods and baby food.

Even the microwave plastic tableware that has passed the standard test is only recommended for use under 700W and short-term heating conditions. Unless the product is marked for cooking or has obtained other higher-requirement international certifications, it can be used in more stringent conditions. Use under conditions. 700W is roughly equivalent to the mid-range power of a microwave oven. Generally, there are instructions for the output power of each level in the manual. Short-term heating refers to heating for 2 to 3 minutes and cannot be used for cooking cooked food.


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