Is It Safe To Heat Takeout Containers In The Microwave?
Reheating leftovers in their takeout containers feels convenient, but it's not always safe. Many containers aren’t made to handle high heat and can melt, warp, or release chemicals into food.
Knowing which materials are microwave-safe and how to reheat properly helps you avoid messes, damage, or health risks when enjoying takeout the next day.
Plastic containers
Most disposable plastic containers aren't designed for repeated heating. If they aren’t labeled "microwave-safe," they can soften or release harmful chemicals into your food. Some plastics also warp, making spills more likely.
It's best to transfer your food to a glass or ceramic dish before reheating. It takes a few extra seconds but keeps your meal and your microwave safe.
Styrofoam and paper boxes
Styrofoam breaks down under heat and can release toxic fumes, while paper takeout boxes with metal handles can spark. Even plain paper containers can leak or burn if overheated.
To be safe, avoid microwaving any of these materials. Instead, move your food to a microwave-safe dish before reheating.
Microwave-safe options
If you often reheat leftovers, keep a few microwave-safe glass or ceramic containers on hand. They distribute heat evenly and don't leach chemicals.
Look for the "microwave-safe" label when buying storage containers. For a quick fix, use a microwave-safe plate covered with a damp paper towel to trap steam and keep food moist while heating.
Play it safe
While it's tempting to toss takeout containers straight into the microwave, it’s rarely the safest choice. Plastic, Styrofoam, and coated paper can all cause problems under heat.
Taking a moment to reheat food in proper containers protects your health, keeps flavors intact, and extends the life of your microwave.