Will this plastic microwave lunch containers release harmful substances at high temperatures?

Whether this plastic microwave lunch containers releases harmful substances at high temperatures depends mainly on its material and production quality. Qualified plastic microwave lunch containerses are usually made of food-grade plastics, such as polypropylene (PP). This type of plastic is relatively stable at high temperatures and is not easy to release harmful substances. PP material is widely regarded as a safe microwave heating material because it has high heat resistance and can withstand high temperatures in microwave ovens without deformation or release of harmful substances.
plastic microwave lunch containerses produced by regular manufacturers will undergo strict safety certification, such as testing by the FDA (US Food and Drug Administration). These certifications ensure that the material and production process of the product meet relevant safety standards, thereby reducing the risk of releasing harmful substances at high temperatures.
Although materials such as PP are relatively stable at high temperatures, long-term or high-temperature heating may still affect them. Therefore, when using this lunch box for microwave heating, follow the product instructions and the microwave oven's usage guidelines to avoid long-term high-power heating. Certain foods, such as overly acidic, overly alkaline or high-fat foods, may accelerate the aging of plastics and the precipitation of harmful substances. Therefore, when storing and heating these foods, special attention should be paid to the material and heating conditions of the lunch box.
Before use, the lunch box should be carefully checked for cracks, damage or deformation. These defects may increase the risk of harmful substances being released. Strictly follow the product instructions and the instructions for use of the microwave oven to avoid safety problems caused by improper use.
Whether this plastic microwave lunch containers releases harmful substances at high temperatures depends mainly on its material and production quality as well as the conditions of use. If the lunch box is made of food-grade plastic and certified for safety, and follows the product instructions and the instructions for use of the microwave oven during use, the risk of releasing harmful substances is low. However, to ensure safety, consumers should still pay attention to the material and production quality of the product and remain vigilant during use.