Recommended only for limited microwave use in reheating foods such as sandwiches, crackers and breads microwaving many foods and liquids may melt container and cause injury. Always check container and use caution when removing from microwave. This product, when properly incinerated, produces harmless carbon dioxide and water with no ash residue It is inert in a landfill and does not contribute to ground water contamination. No chlorofluorocarbons (CFCs) have been used in the manufacture of this product. This product was packaged using 20% less material. The contents of this bag are plastic 5: polystyrene (ps). This bad is made from plastic 4: low density polyethylene (ldpe)