|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||53/425 ; 53/440|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 73 인용 특허 : 4|
A method is provided for obtaining an acceptable configuration of a thermally processed plastic container packed with food. Improvement in container configuration is attained by proper container design and by maintaining proper headspace of gases in the container during thermal processing and/or by controlled reforming of the bottom wall of the container. Further improvements are attained by controlling the thermal history of the empty container, such as by pre-shrinking the container before it is filled with food and sealed.
A method of thermal sterilization of a plastic container packed with food to obtain a thermally sterilized packed container having an acceptable configuration, comprising pre-shrinking the container, filling the pre-shrunk container with food, sealing the container, either or both of said filling and sealing steps including selecting an initial container headspace volume and an amount of gas, taking into account an initial vacuum level, if any, at sealing such as to cause bulging of the container bottom wall and subsequent reformation of the container bo...