How do you minimize the risk of a breakdown of this sort? Performing a functional test is one way. From time to time you open an egg as it comes out of the machine and check its quality. But you will have to throw away the egg tested. A second way involves in-process inspection, which can take many forms. You could, for example, simply insert a thermometer into the water so that the temperature could be easily and frequently checked. To avoid having to pay someone to read the thermometer, you could connect an electronic gadget to it that would set off bells anytime the temperature varied by a
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