Liquid product packaging caps with opening plugs are disclosed. The proposed caps comprise dispensing glands and protection meshes attached to the liquid product packaging caps. In examples, when opening, the opening plugs do not touch the liquid content and fold over the liquid product packaging caps, rather than inside them, while at the same time sharp circumferential edge guards prevent users from touching the sharp circumferential edges of the metal plugs. The dispensing glands are released and prevent the liquid from touching potentially contaminated caps of the liquid product packaging which may have been in contact with polluting and contaminating agents. Protection meshes are fitted or secured to dispensing glands which close the packaging holes after they are opened. The protection meshes, apart from the gaps also prevent insects or objects from entering, have pre-selected pre-cut areas to allow users to insert drinking straws into the packaging.

A metal closure for seaming onto the end of a container, the closure comprising a centre panel defined by a circumferential score, a tab fixed to the panel by a rivet formed in the panel, and two spaced apart, elongate raised beads formed in the panel. The tab has a heel portion radially inside of the rivet and a nose portion radially outside of the rivet and adjacent to a radially inner edge of the score, such that lifting of the heel portion forces the nose portion into contact with a region of the panel adjacent to the radially inner edge of the circumferential score, thereby causing the closure to fracture partially along the score. The beads extend with a circumferential component of direction, and each has an end terminating under the tab radially between the rivet and the score about which the tab may pivot.