You should only microwave food in styrofoam containers that have a microwave-safe label. This is to prevent the compound styrene, which has been linked to cancer, from leaching into your food.

And polymer chemists agree.

Here’s what you need to know amid concerns about microplastics and toxic chemicals. Reviewed by Dietitian Kelli McGrane, M.S., RD "Key Takeaways" Only plastic containers designated microwave-safe by ...

Medically reviewed by Patricia Mikula, PharmD Key Takeaways Avoid heating food in plastic containers to reduce exposure to microplastics and toxic chemicals.Transfer microwave meals to glass or ...