A can for containing a liquid and comprising a top end, said top end comprising; (a) A dispense area defined on said top end by a first score line, (b) A pull tab coupled to the top end by a rivet, said pull tab comprising a puncturing end suitable for breaking the first score line and pushing into the interior of the can without detaching the dispense area to open a dispense aperture upon lifting an opposite actuating end of said pull tab away from the top end, (c) A vent area defined on said top end by a second score line separate from the first score line and positioned on the opposite side of the rivet as the first dispense area, wherein the first and second score lines (31A, 31B) are separated from one another by at least one torsion stripe of the can top material suitable for acting as a hinge by torsion upon lifting the actuating end of the pull tab away from the can top, such that as the dispense aperture is being opened by pushing the dispense area into the interior of the can, a vent aperture is opened by pulling the vent area outwards from the can top end, and wherein the first and second score lines (31A, 31B) form an open loop, characterized in that upon lifting the actuating end of the pull tab the dispense area and vent area are bent about a line defined between the two open ends of the respective score lines (31A, 31B), wherein either: the first and second score lines (31A, 31B) are substantially in the shape of two Ω's facing each other by their open sides, the rivet being located between them, the torsion stripe being defined by the area separating the substantially straight legs of the opposed Ω's, and wherein the curved portion of the Ω of the second score line which defines the vent area is substantially smaller than the curved portion of the Ω of the first score line which defines the dispense area; or the second score line is partially nested within the first score line (31 A) on either side of the rivet, the areas between first and second score lines defining two torsion stripes where they are partially nested. (a) A dispense area defined on said top end by a first score line, (b) A pull tab coupled to the top end by a rivet, said pull tab comprising a puncturing end suitable for breaking the first score line and pushing into the interior of the can without detaching the dispense area to open a dispense aperture upon lifting an opposite actuating end of said pull tab away from the top end, (c) A vent area defined on said top end by a second score line separate from the first score line and positioned on the opposite side of the rivet as the first dispense area, the first and second score lines (31A, 31B) are substantially in the shape of two Ω's facing each other by their open sides, the rivet being located between them, the torsion stripe being defined by the area separating the substantially straight legs of the opposed Ω's, and wherein the curved portion of the Ω of the second score line which defines the vent area is substantially smaller than the curved portion of the Ω of the first score line which defines the dispense area; or the second score line is partially nested within the first score line (31 A) on either side of the rivet, the areas between first and second score lines defining two torsion stripes where they are partially nested.