How Microwave oven Works???

All of you might be having a microwave oven. You due it to heat food, to cook food, to bake and what not. It makes your life and cooking much easier. But have you ever imagined how it works.

Well don't you worry we will explain you the working of a microwave oven. As the name suggests it heats food by passing microwave radiation through it. Microwaves are a form of  electromagnetic radiation with a frequency higher than ordinary radio waves but lower than infrared light.

Water, fat, and other substances in the food absorb energy from the microwaves and sets their molecules in rotating motion. Rotating molecules hit other molecules and put them into motion, thus transferring energy. This energy, when spreads it heats the solid and liquid food.

Microwave heating is more efficient on liquid water than on frozen water, because in frozen water molecules are tightly packed which restricts the movement of molecules.

A common misconception is that microwave ovens cook food "from  inside out", meaning from the center of the of food to outwards. This is totally wrong but it can occurs sometimes if the inner layer has a lower heat capacity than the outer layer causing it to reach a higher temperature and making it feel hotter despite having a lower temperature. In most cases, however, with uniformly structured or reasonably homogeneous food item, microwaves are absorbed in the outer layers of the item at a similar level to that of the inner layers.

With this simple working of a microwave hope you would now be able to extract maximum from it.

So keep cooking...

M  PRANIL  REDDY

B.Tech. (Andhra Pradesh)

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