Panasonic NN-D851 is a multifunctional device which allows you to cook food in various ways, depending on your preference and the type of food you wish to cook. You can use it to microwave food, grill, bake, or use the convection mode, and it also features a combination mode that combines microwave and convection cooking. It is also equipped with a sensor defrosting mode that helps you to defrost frozen food quickly and evenly.