I would like to put a cup of water in microwave and measure the temperature of the water as it rises with time in the microwave. Obviously electronic equipment will be fried in a microwave, but would it be possible to put a thermocouple in the water with its lead coming out of the microwave (with the door closed on it) and leading to the measuring device? I read that it could be possible if the thermocouple is earthed to the inside wall of the microwave, is this true? Any ideas for doing it a different way (within reasonable cost, ie. no thermal imaging devices. I already have a K type thermocouple and a handheld reader)?