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Why are the BBL CultureSwab / CultureSwab Plus products wrapped in foil?

April 26, 2017bbl cultureswab foil Plus products wrapped

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Why are the BBL CultureSwab / CultureSwab Plus products wrapped in foil?

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The BBL CultureSwab and BBL CultureSwab Plus products are packaged Vi-Pak foil. Nitrogen gas is injected into both the foil pack and the individual swab packages. This inner environment works synergistically with sodium thioglycollate in the transport medium to create an ideal Eh potential. Together, the metallic foil of the outside packaging and the plastic film of the individual swabs block the entry of oxygen and prevent unwanted oxidation of the transport medium.