Describes food packaging or containers that can safely be heated in a microwave oven, and by extension foods designed for microwave cooking. Microwaveable trays, films, and bowls are made from materials that withstand microwave energy without melting, warping, or leaching harmful substances, and they often include steam vents or susceptors that crisp the food. Ready meals, popcorn, and vegetables are formulated and packaged for microwave preparation, with instructions specifying times and standing periods. Consumers should only microwave containers labelled as microwave-safe, never metal or unknown plastics, and should follow standing times so heat distributes evenly and the food reaches safe temperatures.