It is certainly magic to produce water from fire, but 3'ou can do it easily as follows:

The cork rises

Fig. 95. The cork rises

Water From Flame

Fig. 96. Water From Flame

Hold a clean, dry, cold tumbler over your alcohol lamp flame (Fig. 96). Does water deposit in the form of mist on the inside of the tumbler?

Repeat with fresh tumblers with the flame of a kerosene lamp and of a candle.

Are the results similar ?

Direct the blowpipe flame into the end of a piece of No. 2 or 4 tubing. Does water deposit in drops inside the tube about 1 inch above the end?

Atmospheric Pressure

Fig. 97. Atmospheric Pressure

One of the chief constituents of alcohol, kerosene, and candle wax is hydrogen (H), and when this burns in the oxygen (O) of the air, it produces water (H20). It is this water which condenses on the cold glass.