The gas used for post-mix is Carbon Dioxide (CO2).
According to the provided reference, Carbon Dioxide (CO2) is specifically used for post-mix soft drinks. This gas is essential for carbonating beverages, giving them their fizziness and characteristic texture.
The reference highlights that 10-litre CO2 cylinders are suitable for this purpose, operating at the maximum pressure required for highly carbonated drinks like post-mix soft drinks, as well as lagers and ciders. Ensuring the cylinders meet British industry standards, as mentioned in the reference, is crucial for safety and performance.
Why is CO2 Used in Post-Mix?
- Carbonation: CO2 dissolves in water under pressure, creating carbonic acid, which provides the bubbles and slight tanginess characteristic of carbonated soft drinks.
- Preservation: CO2 can help inhibit the growth of some microorganisms, contributing to the shelf life of the beverage syrup before mixing.
CO2 Cylinder Details from the Reference
The reference provides specific details about the CO2 cylinders used:
- Gas: Carbon Dioxide (CO2)
- Cylinder Size: 10-litre
- Operating Pressure: Maximum pressure for highly carbonated drinks
- Maintenance Standards: Regularly maintained to British industry standards
Using the correct gas and properly maintained equipment ensures that post-mix drinks are consistently carbonated to the desired level, providing a high-quality beverage experience.
