From Freezer to Oven -
Temperature: -25 deg C to 250 deg C; or -13F to 425F
Rounded seal and casserole design makes cooking more even, in ovens and microwaves. Heat is spread evenly inside the container. Good heat retention 'an oven inside an oven'
Automatic steam control - the handles and seal have been designed to eject excess steam or to retain humidity inside the container to avoid soaking or drying out the foods.