Packaging sterilizable edibles in thin walled containers

摘要

A thin walled, easily crushable container (11) with an integral or seamed-on bottom is filled with an edible material (10) which requires sterilization. The empty container has one end attached or integral that may have a concave slope relative to the inside of the container. A liquified or solidified inert gas is then inserted into the container. The container is then sealed with a concave shaped end (13) before the inert liquified or solidified gas has completely vaporized. The ends do not bulge under the pressure left after sterilization, which pressure is due to the pressurization effect of the inert gas and which pressure is enough to overcome the vacuum caused by the cooling of hot water vapor or steam above the edible material and gives the can the required rigidity. <IMAGE>