Microwaves are a subset of the radio spectrum that contains far infrared radiation, terahertz radiation, and ultra-high frequency (UHF) radiation (3 to 30 GHz or 10 to 1 cm at minimum). Microwave ovens, radar equipment, satellite communications, and radio telescopes all use microwave transmissions.
Microwave radiation is emitted when atoms and molecules absorb energy in their environment. This energy is thermal (heating) and can transmit to nearby objects without direct contact. This is why it is easy to heat food with a microwave—it doesn’t require any physical contact.
Like all electromagnetic radiation, microwaves can cause certain health effects if they are exposed to the body for long periods of time. High levels of microwave radiation can damage the cells of the human body, and prolonged exposure can result in cancer. However, this risk is very low for consumers who only cook with microwaves or use their microwave ovens infrequently.
Using a microwave oven can help preserve nutrients in foods because it cooks food quickly and at lower temperatures than conventional stovetop or baking methods. It also uses less power than other cooking devices and generates no fumes. Microwaves can, however, cause food to feel wet or soggy, and they sometimes produce hot and cold spots in food which can be unpleasant to the tongue.
Many microwaves are produced by vacuum tube devices such as the cavity magnetron used in most microwave ovens, the klystron, and the traveling-wave tube (TWT). Solid-state microwave emitters are also available for higher power applications.
COMMERCIAL CHEF 0.7 Cubic Foot Microwave with 10 Power Levels, Small Microwave with Push Button, 700W Countertop up to 99 Minute Timer and Digital Display, Stainless Steel
$70.76 (as of January 14, 2026 19:13 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
FRIGIDAIRE EMW788RETRO 0.7 cu. ft. Retro Microwave, Black-Gold
$74.98 (as of January 14, 2026 19:13 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Nostalgia Retro Compact Countertop Microwave Oven, 0.7 Cu. Ft. 700-Watts with LED Digital Display, Child Lock, Easy Clean Interior, Black
$89.99 (as of January 14, 2026 19:13 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Chefman Countertop Microwave Oven 1.1 Cu. Ft. Digital Stainless Steel Microwave 1000 Watts with 6 Auto Menus, 10 Power Levels, Eco Mode, Memory, Mute Function, Child Safety Lock, Easy Clean
$119.99 (as of January 14, 2026 19:13 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
TOSHIBA ML-EM45PIT(SS) Countertop Microwave Oven with Inverter Technology, Kitchen Essentials, Smart Sensor, Auto Defrost, 1.6 Cu.ft, 13.6" Removable Turntable, 33lb.&1250W, Stainless Steel
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BLACK+DECKER Countertop Microwave Oven 0.9 Cu Ft, 6 Auto Menus, Child Lock, Memory Function, 10 Power Levels, Easy One-Touch Start, Digital Panel, 900W
$199.00 (as of January 14, 2026 19:13 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
GE Countertop Microwave Oven, Compact 0.9 Cubic Ft., 900-watt Capacity, 7 Auto Cooking Settings, Child-Lock Technology, Kitchen Essentials for the Countertop, Dorm Room or Apartment, Stainless Steel
$135.00 (as of January 14, 2026 19:13 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
GE Countertop Microwave Oven, 1,150-watt Capacity, 1.6 Cubic Ft., 8 Auto Setting Cooking Settings, Child-Lock Technology, Kitchen Essentials for the Countertop, Dorm Room or Apartment, Stainless Steel
$199.99 (as of January 14, 2026 19:13 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Chefman Countertop Microwave Oven 0.9 Cu. Ft. Digital Stainless Steel Microwave 900 Watt with 6 Presets, Eco Mode, Mute Option, Memory Function, Child Safety Lock, Kitchen, Home, Dorm Essentials
$89.99 (as of January 14, 2026 19:13 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)