The heating principle of the oven is that the resistance wire (rod) is electrified to heat, so that the electric energy is converted into heat energy, the temperature in the oven is raised, and then the food is roasted until it is cooked. This process is from the outside to the inside.
Oven is the process of processing food and baking. Direct baking with naked flame will produce carcinogen 3,4-benzopyrene, and its content is proportional to baking time. But in the oven, this carcinogen is hardly produced, which can be said to be a safer processing method.