METHOD AND SYSTEM OF BEER SHELF LIFE EXTENSION BY pH NEUTRALIZATION

摘要

Methods and systems are provided that suppress or arrest oxidation in beer by altering the pH level of beer to a neutralized state. An appropriate pH level for the beer, where oxidation reactions are suppressed, is determined and the beer is subjected to an alkaline substrate that raises the original pH level of the beer to an increased pH level. The alkaline substrate releases hydroxyl ions into the beer, raising the pH level, without requiring the addition of chemicals or compounds to alter the pH level. This pH-neutralized beer may be stored or shipped and then returned to a target pH-adjusted level by subjecting the pH-neutralized beer to a pH-adjustment treatment. The pH adjustment treatment uses an ion exchange substrate to extract a predetermined amount of the hydroxyl ions from the pH-neutralized beer producing a target pH-adjusted beer having a lower pH level at the original target fresh flavor.