Patent attributes
A capsule containing a powdered food substance comprises a body including a lower wall and a lateral wall, and a lid fixed to the body. The lid and a central portion of the lower wall are pierceable to allow the injection of water into and the extraction of a beverage from the capsule. Between the lid and the lower wall, there is a permeable filter, which retains the powdered substance, the filter including a layered sheet of flexible material fixed to the body, and separating the powdered substance from the central portion. The sheet of flexible material is shaped to form, at the central portion, at least one projection towards the lid. At the projection the filter is distanced from the central portion and there is a compartment, located between the filter and the central portion, where a piercing element can be inserted following penetration through the central portion, without damaging the filter.
