METHOD OF IMPROVING FOODSTUFF QUALITY Russian patent published in 1998 - IPC

FIELD: food industry. SUBSTANCE: foodstuff is saturated with oxygen prior to being packed into hermetically sealed bags. Hermetic envelope is made with provision of compensation for pressure rise in inner space. Possibility of compensation for internal pressure rise is provided by making the envelope of flexible material, either partially or completely. Compensation for internal pressure rise can be provided by installing check valve directed outwards. EFFECT: possibility to keep moisture in foodstuff and its nutritive qualities and give curative properties to foodstuff. 4 cl