Fine shredding helps the sugars 3-6% come out of cabbage cells.tight packaging helps create an anaerobic condition,thus preventing the growth of anaerobic. Salt stimulates growth of some lactic acid bacteria, and the growth of some undesirable bacteria and pectinase (in cabbage)action. The top covered to exclude air and prevent growth of some aerobes. Fermentation at 18°C(65 F) discourages the rapid growth of some undesirable bacteria(facultative anacrobic or anaerobic), but encourages the growth desirable lactic acid bacteria, Natural inhibitors in cabbage also discourage the growth of undesirable Gram-negative and Gram-positive bacteria