The heat drives the alcohol off with the steam.

If the heating is continued long enough, all the alcohol will be driven off.

The Chinaman boils his wine before drinking it.

Perhaps this is one reason why Chinamen are so seldom found drunken.
~6.~ By a simple experiment which your parents or your teacher can perform for you, it can be readily proven that different fermented drinks contain alcohol, and also that the alcohol may be driven off by heat.

Place a basin half full of water upon the stove where it will soon boil.