proposition 65 reasons:titanium dioxide, other chemicals
Instructions: Open vent and latches before use in microwave. Care and Use: Before use, wash by hand or wash in top rack of dishwasher. Color sealant can be removed before cleaning. Hand wash seal and let dry completely before returning to lid. To prevent scratching, avoid abrasive cleaners or scrub pads while cleaning. For use in microwave only. Not intended for ovens, stovetops, or other browning elements. Open vent and unlock latches before heating in microwave. To prevent staining, avoid overheating foods that are high in oil, fat, sugar, or tomato content in container.