Capsule, system and method for preparing a predetermined quantity of beverage suitable for consumption

A capsule and a beverage brewing device for preparing a predetermined quantity of beverage suitable for consumption using an extractable product, comprising:

• a capsule comprising:
• a cup comprising a circumferential wall, a bottom closing the circumferential wall at a first end, and
• a lid in use connected to the cup at a second end of the circumferential wall opposite the bottom,
• wherein the wall, bottom and lid, in use, enclose an inner space comprising the extractable product, and
• wherein at least a portion of a surface of the capsule conceived to, in use, interact with the receptacle is provided with a projection for forming a sealing engagement with the receptacle;
• wherein the projection is integral with the cup and is made of the same material as the cup;
• and
• a beverage brewing device comprising a receptacle for interacting with the capsule,
• wherein, in use, the at least one projection abuts against at least a portion of the receptacle such that a sealing engagement between the capsule and the receptacle is formed;
• and
• wherein the projection has a textured, undulating surface, wherein the textured, undulating surface includes a mixture of regularly spaced depressed and elevated areas, wherein a height difference between the elevated areas and the depressed areas is at least 0.05 mm.