Behind the Bar Rail: Soda Siphon

Whether it’s a mixed drink or simply an order of pop/soda, a soda gun is a necessary tool behind the bar. But where did it come from? What is a soda siphon? How do you use a soda siphon?

What Is a Soda Siphon?

A soda siphon is a device used to dispense carbonated water or soda. A glass, plastic, or metal bottle holds the liquid you want to carbonate. The siphon adds carbonation by applying pressure, usually carbon dioxide (CO2).

History of Soda Fountains, Siphons, Machines, Guns

The original patent was for a soda fountain in 1819. This device was a barrel with a pump and spigot. The carbonation was created through pressurization.

The modern-day siphon was created in 1829. This time, instead of a barrel, it was a bottle, and a valve dispensed the liquid, which in most cases was seltzer water. So, the soda siphon was also known as a seltzer bottle or siphon seltzer bottle.

In 1863, cola was created, and in 1888, a major breakthrough occurred when carbon dioxide was added, transforming drinks from pressurized to carbonated.

In 1903, soda was purchased at store counters. Over time, food, ice cream, malts, and milkshakes were added. In the 1920s and 1930s, this blossomed into the concept of “soda shops” or “soda fountains.”

As soda fountains died and fast food rose, the soda machine began taking over bars and restaurants as the fastest way of dispensing carbonated beverages. These large machines held the non-carbonated beverage in a holding tank, and when a lever was applied, the carbonation would be added. Later, ice tanks were added to dispense iced and carbonated beverages at once. The soda gun was placed where big, clunky machines could not fit.

Soda Siphon vs Sodastream

In 2009, it became commonplace for home soda machines to be used. Just like Kleenex™ became a household name for face issues. So has the brand SodaStream™ become synonymous with counter-sized soda makers.

How to Use Soda Gun

It would be best to always familiarize yourself with the soda gun or soda machine at any new bar where you work. Since they are not the same from bar to bar. Never assume you know exactly how to operate or maintain a machine without prior training.

The concentrated liquid is usually stored in pouches under the bar or behind the machine, which will need to be changed from time to time. The carbonation is introduced using a carbon dioxide tank. The carbonated beverage is sent up a tube to a dispensing handle. There are usually multiple choices on the handle, such as various types of soda, juices, tonic water, and tap water. The soda is dispensed via a trigger, so they are commonly known as soda guns.

Soda guns are always broken down at the end of the night, so the nozzles can be removed and soaked.

Learn more about other important tools behind the bar in our Behind The Bar Experience course.

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