Myth: Microwaving food in plastic containers and wraps releases harmful, cancer-causing substances

Fact: Plastic containers and wraps labeled as safe for use in the microwave should be safe when used as directed.

Not all plastic containers are meant for use in the microwave. There is some evidence that plastic containers that don't have a microwave-safe label could melt and potentially leak chemicals into your food. Avoid microwaving plastic containers that are not meant for the microwave, such as margarine tubs, takeout containers or whipped topping bowls.

Check to see that any container you use in the microwave has a microwave-safe label. If it doesn't, consider moving the food or liquid into a glass or ceramic container.