INNER LID FOR CULTIVATION CONTAINER, OUTER LID THEREFOR AND CULTIVATION CONTAINER

摘要

PROBLEM TO BE SOLVED: To provide an inner lid for a cultivation container improved in sealing performance of parts excluding a filter while maintaining excellent inert gas replacement property so as to prevent various germs from intruding into the container. SOLUTION: This inner lid 3 for the cultivation container covers the port 7 of the cultivation container for cultivating mushroom. The inner lid is tightly fitted in the internal circumferential surface of the port 7 of the cultivation main body 2 and has a circular outer frame 30 with an opening in the center and a filter 31 unitedly molded by insert molding on the central opening of the outer frame 30. COPYRIGHT: (C)2003,JPO