Patent ID: 7313901

Claim:
A packaging apparatus that manufactures a package wherein foodstuff article to be packaged and an inert gas are sealed in a packaging material, comprising: an introducing unit through which the article to be packaged and the gas are supplied to the packaging material formed in a tubular shape; a first sealing mechanism that seals the tubular packaging material to manufacture a package containing the article and the gas; and a control unit that is configured to adjust the temperature and amount of the gas in the sealed package so that a prescribed thickness of the sealed package is achieved based upon the difference between the temperature of the outside air and the temperature of the gas by setting the temperature of the gas in the packaging material at a temperature lower than that of the outside air when said first sealing mechanism seals the tubular package material, the control unit being further configured to receive postprocessing information relating to a state of the package after the package is manufactured by the packaging apparatus and to perform a feedback control of the temperature of the gas in a subsequently manufactured package based on the postprocessing information.