Thursday, February 18, 2010

How the Microwave Oven Works

Nowadays, Microwave oven is an essential part of most kitchens. In the summer or other hot times of the year. Microwave oven is an ideal device for use, since it does not heat your kitchen like the way an oven will. Unfortunately, most people still use the microwave to heat the coffee, melt butter or popcorn. That's fine - but the application of Microwave Oven can do more( than you think)!

Microwave_watt-cartoon


The microwave works when high voltage is converted to waves of electromagnetic energy, which is a combination of electric and magnetic energy. This energy is in the frequency of radio waves are not X-Rays. A sheet waveguide and agitator together to ensure that energy affects all sectors within the oven. When the door is opened or the timer reaches zero, the energy stops automatically, so no microwave radiation leaves the oven. All ovens also have two separate systems that provide the electrical activity stops when you open the door.


The molecules of water in the microwave food vibrate and 'wiggle', which produces heat. This is what cooks the food, and why not heat the oven itself. That's the reason why foods that contain a lots of water, like fruits and vegetables cook faster. Foods high in fat and sugar are cooked quickly. Metal reflects microwave energy passes through glass, plastic and paper. When the microwave energy is absorbed from food is converted into heat - for the microwave energy can not "contaminate" food.


Although heat is produced directly in the food, the microwave energy does not cook the food inside.More dense foods such as meat is cooked mainly by heat conduction from the outer layers, which are heated in the microwave.

microwave_inside


The combination microwave / convention oven, you will notice that the inside is metal. A particular feature of a convection oven is a fan that circulates hot air constantly around food, so it cooks quickly and browns very evenly. Follow cooking instructions to the letter, if you have one of these devices.


Never try to repair your own microwave. This is a complex apparatus including a magnetron, a high voltage transformer, thermal protectors, and complex circuits.

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