| 摘要 |
<p>A method for filling and closing a container comprises the steps of: (a) providing an open container and placing thereof such that the mouth opening of the container is situated at the top; (b) filling the open container with product for packaging, for instance food or a drink, such that a space remains between the surface of the product and the mouth; (c) introducing into said space a chosen quantity of sterile liquid nitrogen; (d) placing a cover loosely on the mouth rim and maintaining the loose placing of the cover on the mouth rim for a chosen time interval; and (e) sealingly coupling the peripheral zone of the cover to the mouth rim zone of the container.</p> |
