Styrofoam containers are lightweight, rigid packaging made from a type of plastic called polystyrene. They are commonly used for food storage and takeout meals because they are inexpensive and provide good insulation, keeping hot foods warm and cold foods cool. These containers are often found in restaurants and cafeterias, as well as in homes for picnics and parties. However, Styrofoam is not biodegradable, which raises environmental concerns. Many communities are working to reduce its use and promote alternatives, such as biodegradable containers made from materials like paper or plant-based plastics.