Microwave-safe glass will have a small image of a microwave with squiggly lines. However, some older glass might not have this symbol. Editor's Tip: Keep an eye out for microwave-safe symbols on ...

How can you tell if glass is microwave safe To determine if glass is microwave safe, look for a label or symbol on the bottom of the container indicating it is suitable for microwave use.

Always check for the microwave-safe symbol or 5 (polypropylene). Thin plastics can melt and release bisphenol A (BPA), which has been linked to health issues. Use BPA-free, microwave-safe plastic ...