To obtain a spout suited to obtaining a packaging bag which does not generate poisonous gas even after the finish of use by using a laminated film suited to the kind of an infusion and excellent in productivity.

The spout 1 is provided with a pedestal 6 for welding a film sheet to use for a package, a package bag 7 provided with a shoulder part fixed to the pedestal 6 and a hook hole 12 for hanging at a bottom part, a lid provided at the opening part 2 of a large mouth existing on the upper surface of the pedestal 6, a groove part made easy to break by providing a thin groove part around the lid 3 and a rubber-like elastic body 9 with an edge part built in the void part of the pedestal 6 to open by pulling a handle 5 for breaking.