Microwave ovens are regularly used for meal preparation in over 90% of American homes.
Electromagnetic waves are used in microwave ovens, and the molecules inside the food react to the microwave radiation, and they move, vibrate and heat up.
Magnetron is the part which is in command of producing waves in the microwave oven. The wave energy, produced in the microwave turns molecules from positive into negative polarization. This action goes on for more than millions of times for a second. The food molecules absorb the microwaves, and it makes them radiate at the same time for more than million times for a second. This action heats the food by causing “ structural isomerism” – which is a type of damage to the structure of the molecules.