The invention relates to a beverage production device for preparing a beverage by means of extracting a food substance contained in a capsule (10), the device comprising capsule enclosing means (29,30) for housing a dedicated capsule (10) within the device, water supply means (25,27,28,29) for providing liquid to the enclosing means (29,30) and perforating means (20) provided within the enclosing means (29,30) for perforating the capsule (10) in order to produce outlet openings in the capsule for guiding the produced beverage out of the capsule, wherein the perforating means comprise at least two perforating members (20), each of the perforating members (20) comprising a cutting edge (1) formed by two outer cutting surfaces (2,3) joined at the cutting edge, wherein the cutting edge (1) is arranged essentially parallel to a central axis (X) of the enclosing means (29,30).