Nitrogen Doser

1. Applications of Nitrogen Dosers

• Still Water & Juices – protect against oxygen exposure and spoilage.
• Cold Brew Coffee & Tea – extend freshness and maintain aroma.
• Beer & Alcoholic Beverages – stabilize product quality during storage.
• Carbonated and Non-Carbonated Drinks – optimize can and bottle rigidity.
• Edible Oil & Dairy Products – prevent oxidation and rancidity.
• Nutraceuticals & Functional Drinks – preserve vitamins and sensitive ingredients.
• Powder Products (e.g., infant formula) – create inert packaging environments.

2. How Does a Nitrogen Doser Work?

• Filling Stage – the container is filled with beverage or product.
• Nitrogen Injection – a micro-drop of liquid nitrogen is dosed into the headspace.
• Evaporation & Expansion – LN2 vaporizes instantly, displacing oxygen.
• Pressure Creation – the container gains internal pressure for structural rigidity.
• Sealing & Packaging – the container is capped or sealed, locking in freshness.
• This process ensures oxygen-free packaging, extending shelf life while maintaining flavor and quality.

3. Types of Sunswell Nitrogen Dosers

• Inline Nitrogen Doser – installed directly on high-speed filling lines.
• Standalone Nitrogen Dosing System – for flexible packaging and smaller operations.
• High-Speed LN2 Doser – suitable for up to 72,000 containers per hour.
• Customized Dosing Units – tailored for unique products and packaging types.

4. Key Features of Sunswell Nitrogen Dosers

• Precise Dosing Control – micro-dose accuracy ensures consistency.
• High-Speed Operation – supports both low- and high-capacity lines.
• Flexible Compatibility – works with PET, glass, aluminum cans, and pouches.
• Energy Efficiency – optimized LN2 usage minimizes operating costs.
• PLC & Touchscreen Control – simple, automated operation with real-time monitoring.
• Compact Design – easy installation and minimal footprint.
• Hygienic Construction – stainless steel design for food and beverage standards.
• Low Maintenance – reliable components for long-term use.

5. Advantages of Using a Nitrogen Doser

• Extended Shelf Life – eliminates oxygen and reduces microbial growth.
• Improved Package Strength – prevents can/bottle collapse in lightweight packaging.
• Preserved Flavor & Nutrients – oxygen-free environment protects sensitive ingredients.
• Reduced Packaging Material – enables use of thinner, lighter containers.
• Versatility – suitable for beverages, oils, dairy, coffee, and powder products.
• Cost Savings – lower product waste, longer shelf stability, and reduced logistics issues.
• Compliance – meets global food safety and beverage industry standards.

6. Performance Benefits

• Freshness Protection – maintains taste and aroma for longer periods.
• Export-Ready Packaging – extended stability supports international shipping.
• Sustainability – allows lighter packaging, reducing plastic and material use.
• Seamless Integration – compatible with bottling, canning, and packaging lines.
• High ROI – reduced spoilage and improved efficiency increase profitability.

7. Industries That Use Nitrogen Dosing Systems

• Bottled Water & Juice Producers
• Coffee & Tea Brands
• Breweries & Distilleries
• Carbonated & Functional Drink Factories
• Dairy & Edible Oil Producers
• Powder & Nutraceutical Manufacturers
• Food Packaging Companies

8. Why Choose Sunswell Nitrogen Dosers?

Since 2011, Sunswell has specialized in liquid packaging and processing equipment, serving clients in more than 50 countries. With ISO, CE, and SGS certifications, we ensure that our nitrogen dosing machines deliver reliability, precision, and compliance with global standards.

By choosing Sunswell, you benefit from:

• Tailored dosing solutions for different products and container types.
• Integration-ready equipment for smooth production lines.
• Energy-efficient technology for cost savings.
• Certified quality and durable machine design.
• Comprehensive service including installation, training, and global after-sales support.

9. FAQ About Nitrogen Dosers

9.1 What is a nitrogen doser used for?

A nitrogen doser injects liquid nitrogen into containers to displace oxygen, extend shelf life, and improve packaging strength.

9.2 Can nitrogen dosing be used for both bottles and cans?

Yes. Sunswell nitrogen dosers are compatible with PET bottles, glass bottles, aluminum cans, and pouches.

9.3 Does liquid nitrogen affect taste?

No. Liquid nitrogen is inert, odorless, and tasteless, so it does not affect the beverage flavor.

9.4 How fast can a nitrogen doser operate?

Sunswell LN2 dosing systems support up to 72,000 containers per hour, depending on line capacity.

9.5 Is nitrogen dosing safe?

Yes. Liquid nitrogen is widely used in the food and beverage industry and complies with HACCP and GMP standards.

9.6 Can nitrogen dosing reduce packaging costs?

Yes. By strengthening lightweight bottles and cans, nitrogen dosing allows manufacturers to use thinner packaging materials.

9.7 What industries benefit most from nitrogen dosing?

Beverage, dairy, edible oil, coffee, nutritional supplements, and powder packaging industries.

9.8 Does Sunswell provide global support?

Yes. We offer installation, operator training, and lifetime after-sales service worldwide.

10. Conclusion

A nitrogen doser is a powerful solution for beverage and food producers seeking to extend shelf life, maintain freshness, and reduce packaging costs. Sunswell offers high-performance liquid nitrogen dosing systems that integrate seamlessly with bottling and packaging lines, delivering precision, efficiency, and global compliance.

Contact Sunswell today to learn more about our nitrogen dosing machines and request a customized solution.