1. Why Can’t Beer or Carbonated Drinks Be Filled Using a Standard Liquid Filling Machine?

Beer and carbonated beverages contain high levels of dissolved gas, making them high-foaming and pressure-sensitive. Using a regular filling machine leads to multiple production issues and compromises product quality：
•Excessive Foaming → Inaccurate Filling：
The CO₂ rapidly escapes during filling, creating foam that overflows and prevents accurate dosing.
•Loss of Carbonation → Poor Mouthfeel：
If CO₂ escapes, the beer becomes flat and loses its crisp carbonation.
•Oxidation and Flavor Deterioration：
Exposure to oxygen accelerates oxidation, negatively impacting flavor and shortening shelf life.
•Production Mess and Contamination Risk：
Foam overflow and splashing can contaminate the working environment and disrupt production.
•Inconsistent Filling Volume：Unstable foam height affects fill accuracy and product appearance.
Due to these factors, carbonated beverages require specialized machinery. High-gas liquids must be filled using equipment specifically engineered for carbonation retention and precise pressure control.

2. What Features Must a Beer Filling Machine Have?

A beer filling machine must be engineered to protect carbonation, maintain flavor, and control foaming. Essential features include:
1. Low-Temperature Control (0–2°C)
Beer and bottles must be pre-chilled to stabilize CO₂ activity and prevent excessive foaming during filling.
2. Counter-Pressure Filling (Pressurized Filling)
Internal and external pressure must remain balanced to prevent beer from gushing.
This method maintains carbonation and is the core technology of beer filling.
3. Oxygen Reduction & CO₂ Purging
Effective oxygen control helps:
• Slow down oxidation
• Prevent flavor deterioration
• Extend product shelf life
After filling, the container must be immediately sealed to avoid oxygen exposure.
4. Food-Grade Construction
The machine must be built using:
• SUS304 / SUS316 stainless steel
• Food-grade seals and tubing
• Hygienic design suitable for CIP/SIP sanitation
This ensures full compliance with food safety standards.
5. High Filling Precision
Sensors and flow-control technology ensure:
• No foam overflow
• Consistent filling volume
• Uniform appearance and product quality
6. Stable Pressure & Controlled Flow Rate
Reliable CO₂ pressure stability and adjustable filling speed minimize turbulence and foaming.
7. Strict Hygiene & Environmental Control
A proper beer filling environment requires:
•Stable temperature and humidity
•HEPA-filtered clean air
•Compliance with beverage production hygiene regulations

Conclusion: Beer Requires a Dedicated Beer Filling Machine—Not a Standard Liquid Filler
Beer filling demands precise pressure control, low-temperature operation, oxygen management, food-grade materials, and a hygienic production environment.
For this reason, beer, carbonated beverages, and sparkling water cannot be filled using standard filling machines.
To maintain beer flavor, carbonation, and product integrity throughout the filling and packaging process, a specialized beer filling machine is essential.

Need Complete Beverage Filling Line Planning? Contact Neostarpack.

📩[Free Consultation] : info@neostarpack.com

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