Chart Industries

Liquid nitrogen dosing

Precision LN₂ dosing technology for PET pressurization, inerting, oxygen reduction and other food and beverage packaging applications.

Chart IndustriesCHART INDUSTRIESOfficial distributor & system integrator
700×LN₂ expansion to gaseous nitrogen at ambient temperature
Longer shelf lifethrough precise oxygen reduction before sealing
Lighter packagingthrough controlled internal container pressure

System in operation

Chart LN₂ dosing systems in operation

See how precision liquid-nitrogen dosing technology integrates into a production line.

Applications

Four key liquid nitrogen dosing applications

Choose the application that matches your product, package and production objective.

01

Preservation

A precise LN₂ dose is introduced immediately before sealing. The nitrogen vaporizes and displaces oxygen from the headspace, supporting product quality and shelf life.

Beer, wine, oils, condiments and oxygen-sensitive products.

Chart documented result: 90-95% headspace-oxygen reduction compared with traditional gaseous-nitrogen purging.

02

Pressurization

The dosed LN₂ rapidly vaporizes inside the sealed package and creates controlled internal pressure, enabling lighter and more stable PET bottles and cans.

Water, juices, teas, energy drinks and hot-filled products.

Chart documented example: 9 g reduction in PET bottle weight using MicroDose technology.

03

Freezing

Liquid nitrogen rapidly surface-freezes the product before it enters a tunnel or spiral freezer, helping preserve shape, texture and appearance.

Ice cream and products requiring stability during packaging.

Chart documented result: flash freezing provides stability and support through packaging.

04

Modified Atmosphere Packaging (MAP)

A larger LN₂ dose is introduced immediately before sealing to reduce oxygen and gaseous-nitrogen consumption.

Coffee, nuts, botanicals, powders and food products.

Chart documented result: 46% lower nitrogen consumption versus traditional nitrogen-gas purging.

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Case studies & application brochures

Explore proven applications and download the official Chart application-focus brochures.

Preview of the Chart lightweight PET packaging brochureCase study

Lightweight PET packaging

LN₂ pressurization supports lighter bottles, greater package rigidity and reduced paneling after hot or ambient filling.

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Preview of the Chart nitro and cold-brew coffee brochureApplication focus

Nitro & cold-brew coffee

Precision dosing supports oxygen reduction, package pressure and the characteristic nitrogenated cascade and mouthfeel.

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Preview of the Chart nitrogen dosing for beer brochureApplication focus

Nitrogen dosing for beer

LN₂ dosing can purge oxygen before sealing and support package stability while protecting flavour and shelf life.

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Preview of the Chart nitrogen dosing for wine brochureApplication focus

Nitrogen dosing for wine

A controlled dose before closure reduces headspace oxygen and supports preservation without continuous gaseous-nitrogen purging.

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Complete integration

Full equipment solution

From initial design through complete after-sales support, each system is engineered around your production requirements.

  1. 1
    Storage

    A complete range of LN₂ cryogenic cylinders, MicroBulk systems and bulk tanks.

  2. 2
    Withdrawal

    A vacuum-insulated valve minimizes heat leak and gas boil-off while preventing unsafe ice build-up.

  3. 3
    Vacuum insulated pipe

    The foundation for low heat loss and long-term system integrity.

  4. 4
    Phase separator

    Provides a continuous, on-demand supply of high-quality, low-pressure LN₂.

Chart turnkey liquid nitrogen dosing system diagramView the complete turnkey system catalogue

Start your project

Discuss your LN₂ dosing application.

Send us your package type, filling temperature and line capacity. Our engineer will calculate your requirements and propose the most efficient solution.