Case Studies-Articles

Application Focus - General Nitrogen Dosing Capabilities
Application Focus - Nitro  and Cold Brew Coffee
Application Focus - Nitrogen Dosing for Beer
Application Focus - Nitrogen Dosing for Wine

Reducing Waste and Cost One Drop at a Time

One part of liquid nitrogen (LN2) warms and expands into 700 parts of gaseous nitrogen at ambient temperature. Chart's automated dosers dispense a precisely measured dose of LN2 into each container prior to sealing. The trapped LN2 vaporizes, creating pressure, and adding rigidity to the container – allowing for a thinner container wall.ling.

Why LIQUID NITROGEN(LN2)?

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    Preservation An exact dose of liquid nitrogen is introduced seconds before the seamer or capper. The volumetric expansion of the vaporized nitrogen pushes oxygen out of the container.
    Key Benefits: oxygen reduction, extended shelf life, efficient nitrogen consumption, stabilization of organic products.
    Typical Applications: automobile oil, beer, condiments, wine
    In Operation: documented studies show a 26% increase in shelf life and 90 to 95% reduction in headspace oxygen compared to traditional gaseous nitrogen purging

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    pressurization A precise dose of LN2 is delivered immediately before capping or seaming. The trapped LN2 quickly vaporizes, pressurizing the container.
    Key Benefits: lighter weight packaging, increased packaging rigidity, , eliminates package paneling, ease of labeling, oxygen reduction.
    Typical Applications: water, enery drink , flax seed oil, juices (hot / ambient fill), teas, vinegar
    In Operation:     documented 9 gram reduction in PET bottle weight with Chart's MicroDose™ technology. Assuming the PET resin cost of EUR2/kg and a single production line running at 700 bottles/minute, this equates to an annual cost saving >EUR2.6 million.

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    freezing A dose of liquid nitrogen is introduced to "lock in" and surface freeze the product before it's transferred to a traditional tunnel or spiral freez. Key Benefits: maintains product integrity, aids in packaging and labeling, enables new products to be brought to market, enhances flavor and texture Typical Applications: dipped ice cream cones and iCream Café.
    In Operation: liquid nitrogen flash freezing of ice cream cones provides stability and support through the packaging process resulting in improved overall aesthetics

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    Modified Atmosphere Packaging (MAP) A large dose of liquid nitrogen is introduced into the package seconds before the seamer or capper.
    Key Benefits: extended shelf life, oxygen reduction, reduced nitrogen consumption, stabilization of organic products.
    Typical Applications: baby formulas, coffee, nuts, trail mix, botanicals.
    In Operation: 46% reduction in nitrogen consumption using a Chart doser in lieu of traditional nitrogen gas purging.