Can the convection oven microwave serve as a second oven?

== Why wouldn't the microwave oven part of a combination unit be as "good" as the microwave oven? They're essentially the same. A convection oven has a fan inside that circulates hot air in the oven around inside the cooking space when the "oven" part is in use. This "evens" the heat and promotes cooking efficiency and adds a bit of speed to the processs. But look at the microwave oven. A microwave oven has air blown through the cavity (the cooking space) by a fan when the unit is running. In this light, the ovens may be more similar than they are different. The air blown through the cavity is being forced through the cooling elements of the magnetron, the microwave generating device, and it enters the chamber already preheated. But the convection oven circulates hot air continuously, and this is an advantage. Microwave ovens work by adding energy to the hydrogen-oxygen bonds of water molecules inside food. This translates into an increase of the thermal or heat energy in the water. Because water molecules are the most affected by this method of heat-radiation cooking, it is a good idea to add a little water to your left-overs if they're a little on the dry side before re-warming them in the oven.

This is a type of oven that uses a fan to circulate hot air around the object in the oven. This method reduces overall cooking time. The question asked if the microwave part of a microwave-convection oven was as good as a microwave-only unit. Yes, it is. They are the same thing. It's just that the microwave oven in a convection-microwave oven is built into a convection oven. It is unfair (and incorrect) to say that the convection-microwave oven is more efficient than a microwave oven when the performance of the two microwave ovens is compared. Certainly the combination unit has more features than the stand alone unit. It is more flexible; it has extended application and cooking "power" in its ability to prepare food. But the microwave portion of the combination unit is no better or worse than a conventional microwave oven.