Three curves: signs that can be heated

Snowflake: a sign that it can be frozen and put into the refrigerator.

Cup fork: EU food safety symbol. Knife and fork are German. ) stands for food grade

No.5: PP (polypropylene): This is the only plastic box that can be put into the microwave oven and reused after careful cleaning.

This material can withstand the high temperature of 130℃, but its transparency is poor. It should be noted that some microwave lunch boxes are made of PP 05, but the lid is PS 06. PS has good transparency, but it is not resistant to high temperature, so it can't be put in the microwave oven with the box. To be on the safe side, open the lid before putting the container in the microwave oven.

Selection and purchase

1, raw materials for plastic lunch boxes: As consumers pay more and more attention to health, people are concerned about whether the materials used in plastic lunch boxes are healthy. Hygienic and safe materials are harmless to human body, such as PC materials, PE materials and PP materials. The common plastic lunch box material is PP material.

2, microwave heating: plastic lunch boxes can directly heat food in the microwave oven, which is more convenient.

3, plastic lunch box appearance: excellent quality plastic lunch box looks very shiny, beautiful design, no burr.

4, heat resistance: plastic lunch boxes have high requirements for heat resistance, will not deform in high-temperature water, and can even be disinfected in boiling water.

5, durable: plastic lunch boxes should have super impact resistance, not easy to break under heavy pressure or impact, and will not leave scratches.