Polypropylene (PP) is the best choice for microwave use because of its strong heat resistance. Look for recycling symbol #5 on the bottom of the container.
Materials such as PET (#1), PVC (#3), and LDPE (#4) have lower heat resistance and should be avoided for high-temperature heating.
Silicone containers can withstand higher temperatures, making them a safer option for microwave heating.
Before using a microwave, always check the label on the bottom of the container to make sure it is microwave-safe and follow the recommended heat resistance range. Safe use makes heating easy and convenient.
