Your Microwave Is a Wonder of Modern Technology

Your microwave may be a convenience staple, but it’s also a marvel of modern technology. Unlike conventional ovens, which heat from the outside in, microwaves generate high-energy electromagnetic waves that agitate water molecules inside your food and heat up both the food and the container it’s in. When you follow our recommended safety guidelines, microwaves can be a safe, fast and convenient way to heat and cook a meal.

Microwave ovens come in various sizes, from the tiny countertop models to the roomy over-the-range units that sit above your range. They’re available with a variety of features, from basic functions like power levels and one-touch controls to advanced settings for defrosting and cooking (or reheating).

All microwaves have a turntable that rotates food around them as they cook. The best ones have a durable, easy-to-clean glass plate that doesn’t collect or smudge fingerprints. Some feature a sensor that automatically adjusts the power level and cooking time to optimize results, while others include smarter settings like a ‘keep warm’ button or a ‘deodorizing’ mode.

The first practical microwave was developed in 1947 by Raytheon scientist Percy Spencer. He noticed that a candy bar in his pocket melted when he put it in the microwave, inspiring him to create the machine that would revolutionize kitchens everywhere.