Messer’s Gourmet food-grade Liquid nitrogen dosing is a proven solution, broadly used in soft drink production to ensure stronger packaging and fresher taste.
At the heart of liquid nitrogen dosing is a simple yet powerful effect: when liquid nitrogen enters the container, it flashes into gas and instantly builds pressure. In that split second, the expanding nitrogen sweeps out headspace oxygen while bracing the walls of the package with a stable internal cushion. As a result, non-carbonated beverages can achieve the same packaging strength and shelf-life protection as carbonated drinks—without the need for added carbon dioxide. By dosing liquid nitrogen at -196°C just before sealing, manufacturers harness its rapid vaporization and nearly 700-fold expansion to unlock reliable value across production.
The Advantages of Liquid nitrogen dosing:
• Prevents package deformation: The generated pressure (about 1.5–2 bar) keeps aluminum cans firm and PET bottles rigid, preserving shape and appearance throughout handling.
• Reduces residual oxygen: Nitrogen expansion purges oxygen from the headspace, lowering levels to below 1% and slowing oxidation, which extends shelf life by 30%–50%.
• Preserves flavor and nutrition: The low-oxygen environment protects sensitive nutrients like vitamin C, allowing beverages to retain their fresh taste and natural qualities.
• Enables packaging lightweighting: With internal support from nitrogen pressure, aluminum cans can be made up to 70% lighter and PET bottles around 30% lighter, reducing material use and lowering carbon emissions.