A soda machine or soda maker is a home appliance for carbonating tap water by using carbon dioxide from a pressurized cartridge. The machine is often delivered with flavorings; these can be added to the water after it is carbonated to make soda, such as orange, lemon, or cola flavours. Some brands are able to directly carbonate any cold beverage.
Examples of well known soda machine manufacturers are SodaStream of Israel, DrinkMate of the United States, and Aqvia by AGA of Sweden.[1]
Soda machines are often either connected to a dedicated water tap in the house, or configured as a freestanding unit. Some refrigerators are delivered with a built-in soda machine.