... microwave and refrigerator 4water,oil proof 5FDA,SGS biodegradable disposable food container, our products including disposable compartment trays, lunch containers, ... , bowls, plates, cutleries, etc.1. They are made of corn starch, biodegradable and compostable.2. 100% natural and ... nontoxic, harmless and sanitary.4. Within a temperature range of -20 to 120 degree centigrade.5. Can be used ...