|Plastic Lunch Box
|Rectangle Round shape
|Solid color, transparent,or customized
|Transparent and beautiful, convenient and exquisite, fine workmanship, good sealing
Can plastic lunch boxes be heated in the microwave?
If the plastic lunch box is made of polypropylene (PP) or polyethylene (PE), it can be heated in a microwave oven. However, long-term high-temperature heating should be avoided.
Each plastic has its heat resistance limit. Among the materials for food use, 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.
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 heating plastic lunch boxes to reheat food should be avoided.