In our daily life, we all use lunch boxes. Many people think that fresh-keeping products are mostly made of PE plastics. In fact, PP plastics can also be used to make lunchboxes. Let’s follow CNCROWN to learn about the difference between the PP material and the PE material of the lunch box! The difference between the two is listed as follows.
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PP and PE plastic bento lunch boxes are both safe to use
PP and PE plastic bento lunch boxes are both highly hygienic plastics that are safe to use. PP material has food-grade plastics that meet national standards, so it can be used for food packaging.
We all know that PE plastic is plastic with strong cold resistance, and it can still be used normally at -60 degrees Celsius, so what about the cold resistance of PP plastic? PP plastic is a kind of lightweight plastic, which is mostly used in the home appliance and automobile industry and is used for food packaging products, mainly because of its strong hygiene. The maximum cold resistance temperature of PP plastic bento lunch boxes is -35 degrees Celsius. Once the temperature is below -35 degrees Celsius, PP plastic products will become brittle.
The maximum cryogenic temperature of refrigerators is -24 degrees Celsius, and the temperature of the fresh-keeping layer is 3-10 degrees Celsius, so PP plastic is suitable for heated bento boxes. Another important reason for using PP plastics to retain freshness is that it has an excellent heat resistance and can continue to be used at a temperature of 100 degrees Celsius.
CNCROWN contact-grade plastic bento lunch boxes have a variety of shapes, colours and patterns. Our high-grade plastic lunch containers are not only non-toxic, odourless, healthy and environmentally friendly but also very strong, durable, lightweight and portable. These reusable plastic heated bento boxes can be put in a microwave oven, frozen in the refrigerator, or washed in the dishwasher. They definitely bring convenience to your life in terms of carrying meals.
Advantages and Disadvantages of Different Lunch Box Materials
①.Plastic lunch box
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Plastic lunch boxes are the most common lunch boxes. They are generally very light and easy to carry. The commonly used material for plastic lunch boxes is polypropylene PP. High-quality PP material is safer and can be heated in a microwave oven. It should be noted that plastic lunch boxes are not suitable for heating foods that are high in oil or sugar. Consider replacing plastic lunch boxes after they have been used for a long time, and avoid scratching the boxes vigorously when cleaning.
②.Metal lunch box
The most commonly used metal single box is 304 stainless steel. Stainless steel has better performance, is easy to clean, is corrosion-resistant and low-temperature resistant, has a large capacity, can be layered, and has a heat preservation function. However, it is not convenient to carry. When purchasing this type of lunch box, you must pay attention to identify whether the lunch box material is made of food-grade stainless steel. In addition, stainless steel lunch boxes are made of metal and should not be heated in a microwave oven.
③.Glass lunch box
Lunch boxes made of glass are non-toxic and harmless, and are the safest to use. This type of lunch box can be heated in the microwave and is easy to clean. It generally has good sealing properties and no odor. However, they are often very heavy and not resistant to falling, making them unsuitable for carrying. In addition, lunch boxes made of this type of material are mostly single-layered and are not suitable for lunch boxes that need to be sorted.
④.Bamboo lunch box
The design appearance of bamboo bento boxes is very outstanding, and the shape is generally eye-catching and has a Japanese style. However, they cannot be used for heating, and materials such as bamboo are troublesome to store. They are prone to mold when exposed to humid conditions, are not easy to clean, and can easily breed bacteria.
⑤.Ceramic lunch box
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