Microwave Oven
You might say this is the tool that most changed the way we don’t cook, ushering in a whole new genre of frozen and packaged meals with cook times of five minutes or less. The first home microwave was introduced in 1955, but with a price tag of nearly $1,300, the two-foot-wide oven wasn’t a big seller. A 1967 Amana model, which cost less than $500 and fit comfortably on a countertop, fared far better, and the market began to take off. Today, the appliance is by far the most energy-efficient way to reheat leftovers.
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