In a capsule containing a substance constituted by a mass of loose, solid particles, for the preparation of a potable beverage by extracting and/or dissolving the substance by means of supplying a fluid under pressure into the capsule, a screen, permeable to water and impermeable to a predominant portion of particles of the substance is positioned between the substance and the bottom. The screen is attached to the capsule body along attachment zones spaced from the center and circumferentially spaced from each other. A beverage brewing system comprising such a capsule, a method of use of such a capsule and a method of attaching a screen into a capsule body are described as well.
