On 15/10/2020 13:08, Jimk wrote:
"Brian Gaff \(Sofa\)" Wrote in message:
One has to be very careful if you let water boil in a microwave as the
surface tension stops it from boiling due to the way it heats evenly. Then
put anything in that breaks the surface and it erupts.

Brian


Thats never ever happened to me yet...


I've had the volcano experience after heating a mug full of skimmed milk
in a microwave for a couple of minutes and then trying to add drinking
chocolate powder. As soon as the powder hit the surface of the milk much
of the contents of the mug rapidly ended up on the work surface.

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