What is the maximum heating temperature a microwave can achieve?

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Offline thedoc

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B Jay  asked the Naked Scientists:
   
If a microwave oven heats by exciting water molecules then I would have expected the temperature limit to be 100C.

How then did my girlfriend's daughter manage to start a fire by leaving the bean-bag in too long?

What do you think?
« Last Edit: 16/07/2012 02:30:02 by _system »

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Offline RD

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dishcloth version ... http://www.thenakedscientists.com/HTML/podcasts/show/20120401/  [49 minutes into podcast]

beer bottle version ... https://www.youtube.com/watch?v=IX7OZFu1Un8
« Last Edit: 16/07/2012 03:30:28 by RD »

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Offline CliffordK

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beer bottle version ... https://www.youtube.com/watch?v=IX7OZFu1Un8
Most interesting film.

The "plasma outbursts" would be awfully hot.

You can also get a nice heating effect by putting the metal bread ties into the microwave.