MICROWAVE FOOD CONTAINER INSTRUCTIONS About your food container: As well as being microwave safe this product is also freezer / refrigerator safe (-18C 0F) and dishwasher safe. Care: Do not overcook food or use this product in the microwave without food inside. Sharp utensils and abrasive scouring materials may damage the surface. Therefore simply wash with a dishcloth or place on the top rack of your dishwasher. Foods with high quantities of fat, oil or sugar may cause discolouring.