You will remember that wine, beer, ale, and cider are fermented drinks.

We know that these drinks contain alcohol because the chemist can separate the alcohol from the water and other substances, and thus learn just how much alcohol each contains.
~5.~ If we should remove all the alcohol from wine, no one would care to drink it.

The same is true of beer and cider.

It is very easy to remove the alcohol by the simple process of heating.

This is the way the chemist separates it.