Microwave ovens are a fixture in millions of kitchens. The first commercial versions, enormous and costing thousands of dollars, hit the market in 1947. Today, many people can't imagine living without the convenience of microwave ovens because they work so quickly and efficiently, heating only the food or drink without heating the containers.
How do they work? Microwaves are radio waves. Contrary to some reports, microwaves don't cook foods from the inside out. Microwaved foods typically retain more vitamins and minerals than cooking by other methods because cooking time is less, and little or no additional water is required.
Like so many appliances, microwave ovens are safe when used properly, but when misused they present dangers: fire, radiation or bacterial infection due to uneven temperature control.
Don't use a microwave oven:
Here are some tips to promote microwave safety