When you press ‘Start’ on your microwave oven, an internal device called a magnetron emits electromagnetic radiation (EM) — waves with magnetic and electric energy that are part of the electromagnetic spectrum. This includes radio waves, visible light, infrared radiation, ultraviolet radiation and X-rays.
When the EM reaches your food, it reflects off of the water molecules inside it and starts exciting them. These molecule vibrations create heat, which cooks your food. This process also keeps nutrients like vitamin C intact, unlike in traditional oven cooking, where they break down over time.
Your microwave is made of metal so it can trap these reflected rays inside. As the rays bounce around, they produce peaks and troughs of high and low frequency waves. This is why you need to rotate your food, so it absorbs the rays evenly. This process is why a microwave turns food inside-out, not outside-in.
Microwaves come with dozens of features, power settings and preset cooking programs. But if you’re shopping for one, it’s important to decide which functions mean the most to you, such as dedicated popcorn and potato buttons or a mute button so you can nuke a midnight snack without waking up the kids. Then narrow down your options by size and power usage to find the right model for your home. For example, if you plan to use it often for leftover pizza or popcorn, opt for a larger 1.2-cubic-foot model instead of a smaller one designed for single slices.
SHARP Countertop Microwave Oven with Removable 12.4" Carousel Turntable, 1000 Watt, 1.1 Cubic Feet, Stainless Steel
$179.97 (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, 200-watt Capacity, 2.0 Cubic Ft., 8 Auto Setting Cooking Settings, Child-Lock Technology, Kitchen Essentials for the Countertop, Dorm Room or Apartment, Stainless Steel
$259.99 (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.)
BLACK+DECKER EM720CB7 Digital Microwave Oven with Turntable Push-Button Door, Child Safety Lock, 700W, Stainless Steel, 0.7 Cu.ft
$79.99 (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 Air Fryer Combo 4-in-1 Countertop Microwave Oven, Smart Sensor, Convection, Mute Function, Position Memory 13.6" Turntable, 1.5 Cu Ft, 1000W, Black, ML-EC42P(BS)
$229.99 (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 0.7 Cu. Ft., 700 Watts with 10 Power Levels, 6 Cooking Presets with One-Touch Express Cook, Eco Mode, Child Safety Lock, & Mute Button - Black
$68.96 (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.)
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 Compact Countertop Microwave Oven, 0.7 Cubic Ft., 700-watt Capacity, 6 Auto Cooking Settings, Child-Lock Technology, Dorm Room or Apartment, Stainless Steel
$109.00 (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.)
BLACK+DECKER Digital Microwave Oven with Turntable Push-Button Door, Child Safety Lock, Stainless Steel, 0.9 Cu Ft
$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.)
FRIGIDAIRE EMW733BLACKAMZ 0.7 Cu. Ft. Microwave, Black
$69.00 (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.)