Various scientists have proposed that carbon dioxide could 1st be solubilized in the liquid period in the handled tissue to variety carbonic acid (H2CO3), and investigations via the authors are inclined to verify this phase, and to point the attainable direct use of carbonic acid for retarding bacterial spoilage. https://www.linpack.com/news/step-into-the-future-with-advanced-vacuum-packaging-machine-technology