GAZ′OGENE

[Fr.] Syn. Aërating Machine . A portable apparatus for aërating water and other liquids. Many forms have been given to this instrument, but in all the principle is the same. Powders for generating carbonic acid gas are placed in a separate compartment, and the liquid to be aërated in another. The two compartments are connected by a suitable tube, and a second tube, furnished with a spring tap, affords an exit for the aërated liquid. By the aid of the gazogene, water, wine, ale, ., may in a few minutes be fully saturated with carbonic acid gas, and so rendered brisk and piquant. By using fruit syrups, manufactured from English and foreign fruits, the most delicious aërated summer beverages can be made, resembling those so much esteemed by travellers in the South of Europe and the sea-board cities of the Western world. The following are the proportions of soda and acid required for charging gazogenes: For 2 pints, powdered tartaric acid, 280 grains; bicarbonate of soda, 340 grains. For 3 pints, powdered tartaric acid, 340 grains; bicarbonate of soda, 420 grains. For 5 pints, tartaric acid, 620 grains; carbonate of soda, 760 grains. Put the acid and soda in different coloured papers.