Do you need to remove the cardboard boxes from the microwave?
As long as it's not too thick (microwave 2~3CM), the board doesn't affect heating. I hope you can give satisfaction.
The principle of the microwave oven is that the magnetron generates microwave continuously under the excitation of the power supply, and then is coupled to the cooking cavity through the waveguide system, and the microwave energy is evenly distributed in the cooking cavity.
