Patent ID: 8136689

Claim:
A filter element ( 310 , 410 ) for a conventional beverage can ( 1 , 2 ), with a top of a can ( 100 ) comprising a pull tab with a fixing ( 103 ), a tab ( 110 ), and a sealing element ( 101 ) which at least adjoins to a punch edge ( 102 ) of an opening of the can, wherein the filter element has an area covering an entirety of said opening when the can is opened, and the filter element is adapted to be fastened to a top side of the top of the can ( 100 ) by one of i) the fixing ( 103 ) of the pull tab and ii) adherence directly to the top of the can ( 100 ), wherein the filter element ( 310 , 410 ) comprises one or more locking devices configured to lock the filter element to the opening of the can, wherein at least an entirety of the filter element is covered by a removable hygienic tape ( 510 ), wherein a lining tape ( 620 ) is positioned between the can and the hygienic tape ( 610 ), and wherein the filter element is integrated in the lining tape ( 620 ).