Abstract: A capsule used in the production of a beverage, includes an actuation element that is displaced by an actuation force. The actuation element is configured with a section of passageway and controls the moments of entry and exit of a pressurized flow through the capsule. The actuation element includes a flow accumulation chamber provided on a side of the zone facing the flow downstream, and at least one flow exit passage for discharge of the flow out of the accumulation chamber and of the capsule, at least in part as a result of flow accumulation in the flow accumulation chamber.

Abstract: The present invention refers to a capsule containing at least one aromatic substance for producing a beverage by means of its crossing by a pressurized fluid flow, and having at least one controlled opening element retained in a removable manner at least in one zone of the capsule facing the flow upstream and/or downstream. Said controlled opening element, by means of applying at least one certain actuation force exerted by a respective extraction device, may be displaced in at least linear or rotating fashion from an initial retaining position, that produces the airtight closure of the capsule, to at least one following position, thereby releasing at least one section of flow passageway of previously defined configuration and dimension in view of an optimized flow distribution inside said capsule.