Disclosed is a manual pouring device or belonging, suitable for piercing and emptying a granular material contained in a vacuum-sealed package, including: a tubular body, having a duct for the flow of the material, extending from an inlet opening positioned at a first end of the tubular body to an outlet opening for the granular material, positioned at a second end of the tubular body; and a hollow piercing tool having a distal end ending in a pointed tip, and a widened base at the proximal end thereof, rigidly connected to the body. The device further includes a shoulder serving as a stop, configured to come into contact with the wall of the package to stop the pouring device when the wall is pierced by the piercing tool.

A reusable pour spout system that may be attached to different container types to dispense different substances, including course and fine granular materials and liquids. A port component has a proximal tubular end and a flange that is larger in diameter than the tubular portion. The flange further includes a hole-forming structure adapted to pierce the wall of a container, leading to a ramp that captures the container material when the port component is rotated by a user. This positions the flange within the container, with the tubular end exposed to pour the contents from the container. A cap may be provided to seal off the port. The tubular end of the port component, the nut, and the cap may all be threaded. Integrally formed port devices are also disclosed along with bolstering and reinforcing layers and materials to control hole formation.