Is it possible to boil water on an open flame in a paper cup?

Is it possible to boil water on an open flame in a paper cup?

 


Answer. Posted on Saturday, March 7, 2015.

The temperature of the boiling water (100°C or 212°F) is much lower than the ignition temperature of paper (233°C or 451°F). The heat of the flame transfers to the water, the paper can not heat up to the desired temperature and therefore does not light up.

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