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How Do Microwaves Ovens Work?

Microwaves ovens
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How Do Microwaves Ovens Work?

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The reason the energy can be used in microwave ovens to cook food is simple: though metals reflect microwaves, foods absorb them. So a metal box, the oven, reflects the beams of microwaves, which bounce around inside the oven until they hit the food. Microwave heating works by heating the water in foods. The frequency used in microwave ovens optimally heats water molecules, vibrating at an incredible two and a half billion times a second. This friction results in heat, and this heat does the cooking. In effect, the food produces its own heat. In a microwave oven very little of the energy goes to waste heating the oven or the air within it, as happens in conventional cooking. Also, very little goes to waste heating the cooking containers because in microwave cooking you use glass, paper, or plastic, all of which simply allow microwaves to pass through them, neither absorbing nor reflecting them. So when a small amount of food receives the full brunt of the microwaves’ power, it cooks ve

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