How Does A Microwave Heat Food Up. Subscribe to Updates Get the latest creative news from FooBar about art design and business. 3 microwave tricks to perfectly heat up your food.
The misunderstanding that only infrared radiation is thermal perhaps comes from the fact that living human bodies are at a temperature where their thermal radiation peaks in the infrared. Microwaves are produced inside the oven by an electron tube called a magnetron. A microwave oven heats water because the microwave radiation interacts with the dipole separated positive and negative charge of the water molecule.
The sodium and chlorine ions create heat by colliding in the rapidly oscillating electromagnetic field leaving less microwave energy available to heat the center of the food.
Polar molecules like water which have a partial negative charge on the oxygen and. The microwaves are primarily designed to vibrateheat the water molecules in the food as a way of ensuring that the foods gets cooked evenly. These waves are remarkably selective primarily affecting water and other molecules that are electrically asymmetrical one end positively charged and the other negatively charged. Heat is generated when the energy contained in the microwave radiation excites atoms in the water molecules in the food causing them to move faster which is what is meant by heat.
