Portion capsule for producing a beverage

Abstract

A portion capsule for producing a beverage includes a cavity for a beverage raw material, wherein an opening can be made in the portion capsule for producing the beverage.

1 . A portion capsule for producing a beverage, said portion capsule having a membrane and a cavity in which a raw beverage material is provided, wherein, in order to produce the beverage, a plurality of openings, an inlet opening and an outlet opening are introduced, wherein the outlet opening is formed in a base of the portion capsule ( 1 ), characterized in that the membrane has the inlet opening and a venting opening. 
     
     
         2 . A portion capsule for producing a beverage, said portion capsule having a base and a cavity in which a raw beverage material is provided, wherein, in order to produce the beverage, a plurality of openings, an inlet opening and an outlet opening are introduced, wherein the inlet opening is formed in a membrane of the portion capsule, characterized in that the outlet opening and a venting opening are provided in the base of the portion capsule. 
     
     
         3 . The portion capsule as claimed in  claim 1 , characterized in that the outlet opening is provided in the base of the portion capsule, centrally or at a distance from a plane of symmetry. 
     
     
         4 . A method for producing a beverage, wherein a portion capsule is provided with an inlet opening, an outlet opening and a venting opening, wherein a membrane of the portion capsule is provided with the inlet opening and the venting opening, wherein a liquid flows through a cavity in the portion capsule, characterized in that, while the liquid flows in, the cavity in the portion capsule is vented at least temporarily via the venting opening. 
     
     
         5 . The method as claimed in  claim 4 , wherein, once gas has escaped from the portion capsule, the venting opening acts as a liquid inlet opening. 
     
     
         6 . The method as claimed in  claim 4 , wherein at least one of the inlet opening or venting opening is provided at a distance from a plane of symmetry of the portion capsule. 
     
     
         7 . The method as claimed in  claim 4 , wherein the venting opening is provided above the inlet opening with respect to the gravitational field of the Earth. 
     
     
         8 . The method as claimed in  claim 4 , wherein the portion capsule is provided with two inlet openings and two venting openings, wherein the venting openings are arranged in a vertical plane one above the other. 
     
     
         9 . The method as claimed in  claim 8 , wherein the liquid is supplied by means of a liquid inlet means which is arranged along the vertical plane between the two venting openings. 
     
     
         10 . A method for producing a beverage, wherein a membrane of a portion capsule is provided with an inlet opening and a base of the portion capsule is provided with an outlet opening, characterized in that an additional venting opening is introduced into the base. 
     
     
         11 . The method as claimed in  claim 10 , wherein the additional venting opening is introduced above the outlet opening arranged in the base, with respect to the gravitational field of the Earth.