Q:

What is a microwave oven made of?

A:

Quick Answer

A wrap-around metal case encloses and protects the inner workings of a microwave. The doors and the inside panel are made of stainless steel with acrylic enamel coating. The cooking part is usually made of ceramic or glass. The electromagnetic parts inside the oven include timer motors, relays and switches.

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Full Answer

A microwave oven, usually shortened as microwave, is a kitchen appliance that heats food by transmitting microwave radiation through it. Microwaves are generally a segment of the electromagnetic wave spectrum consisting of energy that moves through space, produced by the contact between electric and magnetic fields.

The oven’s several electronic motors, control circuits and relays are positioned on the outside of the casing to which the oven cavity is fastened. The user programs the microwave using the front panel. A powerful magnet located around the anode produces the magnetic field in which the microwave is generated. A thermal protector placed directly on the magnetron protects the tube from damage due to overheating. A blower motor cools the metal fins, and the small window on the door frame allows the user to view the cooking food.

In many households, microwaves are used for reheating previously cooked foods and cooking vegetables. Additionally, they are used for foods requiring slow, steady heat, including chocolate, butter and fats. Other applications of microwave technology include uses in telecommunication products, wood curing and drying, radar detectors, and the medical treatment of some diseases.

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