My wife says that if she uses the microwave 3x in a row then on the third run it takes much longer to heat up the food than it should (all 3 runs are for 1-2 minutes each). I don't know if this is a ...

Microwave oven design and manufacturing have been optimized to the point where the once-expensive appliances are now nearly disposable. Despite the economics, though, some people can’t resist fixing ...