Lesson 8: Types of Gas and Their Uses
Gas is an essential component of the dispensing system in food and beverage establishments. The type of gas used can vary depending on the type of beverage being dispensed and the desired carbonation level. Understanding the different types of gas and their uses is important for ensuring the quality and safety of beverages served. This lesson will cover an overview of different types of gas used in UK food and beverage establishments, recommended uses for different types of gas based on beverage type and carbonation level, and tips for safely handling and storing gas cylinders in accordance with UK regulations.
Overview of Different Types of Gas Used
There are several types of gas used in UK food and beverage establishments, including carbon dioxide (CO2), nitrogen (N2), and mixed gas. These gases are used to carbonate beverages, such as beer and soft drinks, and to dispense them through the dispensing system. The type of gas used depends on the type of beverage being dispensed and the desired carbonation level.
Recommended Uses for Different Types of Gas
Different types of gas have different recommended uses based on the type of beverage being dispensed and the desired carbonation level. Some recommended uses for different types of gas include:
- Carbon dioxide (CO2): CO2 is commonly used to carbonate beer and other carbonated beverages. It is also used to dispense beer through the dispensing system. CO2 is a colourless and odourless gas that is heavier than air.
- Nitrogen (N2): N2 is often used to create a creamy head on beers, such as stouts and porters. It is also used to dispense beer through the dispensing system. N2 is a colourless and odourless gas that is lighter than air.
- Mixed Gas: Mixed gas is a combination of CO2 and N2 and is used to dispense beers that require a high level of carbonation and a creamy head, such as Guinness. Mixed gas is typically available in several different ratios, including 70/30, 60/40, and 50/50. The specific ratio used depends on the desired carbonation level and head retention. Mixed gas is a colourless and odourless gas.
Types of Gas Used for Cask, Draught, and Guinness
The types of gas used for cask, draught, and Guinness are different due to the specific requirements of each beverage. Cask ale is typically served with a low level of carbonation and does not require additional gas to be added to the cask. Draught beer, on the other hand, typically requires CO2 to be added to the keg to carbonate the beer and dispense it through the dispensing system. Guinness, which requires a high level of carbonation and a creamy head, is typically dispensed using a mixed gas, such as 75/25 or 70/30.
Tips for Safely Handling and Storing Gas Cylinders
Handling and storing gas cylinders should be done with care to ensure safety and compliance with UK regulations. Some tips for safely handling and storing gas cylinders include:
- Store gas cylinders in a cool, dry, and well-ventilated area.
- Use appropriate safety equipment, such as gloves and goggles, when handling gas cylinders.
- Ensure that gas cylinders are stored upright and are properly secured to prevent them from falling over.
- Check gas cylinders for leaks before use.
- Only use gas cylinders that are in good condition and have not exceeded their expiration date.
Conclusion
Understanding the different types of gas and their uses is critical for maintaining the quality and safety of beverages served in UK food and beverage establishments. By using the appropriate type of gas based on the beverage being dispensed and the desired carbonation level, businesses can ensure that their beverages are properly carbonated and served with the right amount of head. Moreover, following tips for safely handling and storing gas cylinders is crucial for maintaining a safe working environment for staff and complying with UK regulations.
Overall, by understanding the different types of gas used in UK food and beverage establishments, businesses can serve high-quality and properly carbonated beverages to their customers while ensuring the safety of their staff and customers.