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Undercover gassing is a valuable method for protecting many beverage products—but achieving the proper balance of gases is vital.
Undercover gassing refers to a process which uses an inert gas (N2, CO2, or a mix of both) to replace oxygen in the headspace of canned or bottled products just before they are sealed. These inert gases enhance shelf-life and protect beverage quality by reducing oxidation.
For non-carbonated beverages, nitrogen is usually the best fit. However, especially when filling carbonated beverages, the choice of gas needs to be carefully aligned to application requirements.
Using only CO2 can result in over-carbonation. Pure nitrogen, however, can lead to de-carbonation. The right mixture can alleviate both issues and depends on the degree of carbonation in the beverage.
Bottling and canning operations that use undercover gassing can benefit from Messer’s extensive experience and expansive supply chain of beverage grade N2 and CO2.
Our beverage team can help customers: