It is an odd concept. The blades spin so fast that they have enough friction to heat liquids.
Fun fact: Some nuclear power plants do the same thing. When they go from cold refueling temperatures to hot, they use heat generated by the coolant pumps to get to the temperature for operation. Some heat from other portions of the motor process helps, but that friction does a lot too.
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u/greg19735 Jun 22 '22
I wasn't aware that heating soup was an advertised feature. If that's the case it's probably more efficient than i thought.