Panel for a container, a container provided with such container and a method for making same

A panel for a container, comprising an outer edge for connection to the container and a tab connected to the panel, wherein the tab has a rear tab part for gripping by a user and a front tab part for engagement with the panel and forming an opening in the panel, wherein the panel is provided with deformation means, which structurally and substantially plastically deform upon a transition of the panel into a convex shape due to a pressure difference over the panel and which, locked in the deformed plastic state, urge the panel to a substantially flat or concave shape, wherein the deformation means are located between a central panel portion of the panel and the outer edge of the panel such that the deformation means are located at least one of a) laterally of the tab;

• b) diametrically opposed to the tab relative to the central panel portion;
• and c) annularly around the central portion of the panel with an interruption created by the tab, and wherein, upon the convex transition of the panel, a finger access is formed beneath a free end of the tab and the finger access is maintained when the panel is urged by the deformation means to the substantially flat or concave shape.