Beverage substance, portion capsule and method for producing a beverage

Abstract

A beverage substance for producing a tea beverage is proposed, wherein the beverage substance is intended to be stored in a portion capsule and to be infused in the portion capsule by means of hot water introduced under pressure into the portion capsule, wherein the beverage substance is substantially particulate and at least in part comprises tea, and wherein the beverage substance has a mean particle size of between 500 micrometres and 1,500 micrometres.

1 . A portion capsule for producing a tea beverage, said portion capsule having a substantially closed container which is filled at least in part with a brewing substance which is provided for the brewing process, wherein for brewing the brewing substance the portion capsule can be inserted into a brewing chamber machine, wherein the closed container has a substantially truncated-cone-shaped base element with a closed bottom which is sealed on its side remote from the bottom by means of a covering foil, wherein a hollow space for accommodating the brewing substance is realized between the bottom and the covering foil, wherein the portion capsule has a filter element, characterized in that the filter element comprises a filter felt and in that the brewing substance comprises a beverage substance for producing a tea beverage, wherein the beverage substance is provided to be stored in the portion capsule and to be brewed in the portion capsule by means of hot water introduced into the portion capsule under pressure, wherein the beverage substance is substantially particulate and comprises tea at least in part, wherein the beverage substance has an average particle size (D 4,3 ) of between 500 micrometers and 1500 micrometers. 
     
     
         2 . The portion capsule as claimed in  claim 1 , wherein the beverage substance has an average particle size (D 4,3 ) of between 650 micrometers and 1320 micrometers. 
     
     
         3 . The portion capsule as claimed in  claim 1 , wherein the beverage substance has a proportion of particles with a particle size greater than 500 micrometers which is between 40 percent and 90 percent and is preferably between 50 and 80 percent. 
     
     
         4 . The portion capsule as claimed in  claim 1 , wherein the beverage substance has a proportion of particles with a particle size smaller than 100 micrometers which is smaller than 10 percent and is preferably smaller than 8 percent. 
     
     
         5 . The portion capsule as claimed in  claim 1 , wherein the beverage substance has a specific swelling capacity of between 1.5 and 3 and in particular between 1.0 and 2.6. 
     
     
         6 . The portion capsule as claimed in  claim 1 , wherein the beverage substance is thermally preheated to reduce germs. 
     
     
         7 . The portion capsule as claimed in  claim 1 , wherein at least 90 percent of the beverage substance has a median particle size of between 0.1 and 2 millimeters. 
     
     
         8 . The portion capsule as claimed in  claim 1 , that the beverage substance comprises an anti-foaming means. 
     
     
         9 . The portion capsule as claimed in  claim 8 , wherein the anti-foaming means comprises a vegetable oil. 
     
     
         10 . The portion capsule as claimed in  claim 8 , wherein the anti-foaming means comprises a maximum of 5 percent, in a preferred manner a maximum of 2 percent and in a particularly preferred manner a maximum of 1.5 percent of the beverage substance. 
     
     
         11 . The portion capsule as claimed in  claim 1 , wherein the beverage substance comprises green tea and/or black tea. 
     
     
         12 . The portion capsule as claimed in  claim 1 , wherein the beverage substance comprises substantially between 2 and 4 grams, in a preferred manner between 2.5 and 3.5 grams and in a particularly preferred manner substantially 3 grams of green tea and/or black tea. 
     
     
         13 . The portion capsule ( 1 ) as claimed in  claim 1 , wherein the material of the filter felt preferably comprises polyester. 
     
     
         14 . The portion capsule ( 1 ) as claimed in  claim 1 , wherein the filter felt has a weight per unit area of between 100 and 2000 grams per square meter, in a preferred manner between 400 and 900 grams per square meter, in a particularly preferred manner between 600 and 700 grams per square meter and in a quite particularly preferred manner substantially 650 grams per square meter. 
     
     
         15 . The portion capsule as claimed in  claim 1 , wherein the filter felt, at right angles to its main extension plane, has a thickness which is between 1.5 and 5.0 millimeters, in a preferred manner between 2 and 4 millimeters and in a particularly preferred manner is substantially 2.8 millimeters. 
     
     
         16 . The portion capsule as claimed in  claim 1 , wherein, at a pressure of 200 Pa, the filter felt has an air permeability of between 100 and 1000 l/(dm 2 ·min), in a preferred manner between 200 and 300 l/(dm 2 ·min) and in a preferred manner is substantially 250 l/(dm 2 ·min).