Pack for preparing infusion beverages

1. A pack having an inner volume in which a beverage medium is stored and from which an infusion beverage is prepared when a fluid is introduced inside the pack, the inner volume is defined by sheets of material joined to one another at their edges, such that the inner volume presents a generally plane shape,

the pack comprising an inlet chamber configured to accommodate an inflow of the fluid that will infuse the beverage medium to produce the infusion beverage and at least one outlet duct for delivering the infusion beverage from the inner volume, the inlet chamber and the at least one outlet duct are positioned at a bottom of the pack, and

the pack further comprising a compartmental channel and a filtering element together defining a dedicated chamber inside the inner volume of the pack where the beverage medium is confined, the filtering element is configured for preventing particles of the beverage medium from entering the at least one outlet duct when the fluid is introduced in the pack and the infusion beverage is prepared, thus preventing the particles from being delivered together with the infusion beverage,

wherein the inlet chamber is reversibly configured in the pack such that a first piercable lid is laid over one side of the inlet chamber and a second piercable lid is laid over a reverse side of the inlet chamber.

2. The pack according to claim 1 , wherein the inner volume defined by the sheets of material defines a plane essentially vertically oriented during beverage production, the inlet chamber being oriented essentially perpendicularly to the plane defined by the inner volume, the at least one outlet duct being arranged essentially vertically from the inner volume enabling a free flow of the infusion beverage prepared from the pack.

3. The pack according to claim 1 , wherein the inlet chamber and the at least one outlet duct are comprised in a fitment assembly, the fitment assembly is arranged at the bottom of the pack and is at least partially positioned between two joined edges of the sheets of material.

4. The pack according to claim 3 , wherein the fitment assembly is made of a rigid plastic material.

5. The pack according to claim 1 , wherein the inner volume of the pack is defined by two flexible sheets of material bonded together at least on their lateral sides, the two flexible sheets also conforming at least one piercable lid over the inlet chamber.

6. The pack according to claim 1 , wherein the inner volume of the pack is defined by one single flexible sheet folded in half into two parts joined at edges of the one single flexible sheet.

7. The pack according to claim 1 , wherein the sheets of material configuring the inner volume of the pack are water impermeable, are bonded together by thermo sealing and are made of a material selected from the group consisting of: plastic laminates, metallised foil, alufoil and fiber base material.

8. The pack according to claim 1 , wherein the filtering element is arranged transversely in the inner volume of the pack and fixed to lateral edges of the sheets of material configuring the inner volume.

9. The pack according to claim 1 , further comprising an identification member comprising information on one or more process parameters to prepare the infusion beverage, as a function of the beverage medium, the one or more process parameters being selected from the group consisting of: temperature of the fluid accommodated into the inlet chamber, total volume of fluid, and fluid flow accommodated inside the inlet chamber.

10. The pack according to claim 9 , wherein two sets of symmetrically arranged identification members are arranged in the pack, so that the one or more process parameters in the identification member can be reversibly read.

11. The pack according to claim 9 , wherein the identification member comprises a recognition member that is selected from the group consisting of: mechanical codes, optical codes, RFID tags, bar codes, magnetic codes, embossing codes and LED.

12. A pack having an inner volume in which a beverage medium is stored and from which an infusion beverage is prepared when a fluid is introduced inside the pack, the inner volume is defined by sheets of material joined to one another at their edges, such that the inner volume presents a generally plane shape,

the pack comprising an inlet chamber configured to accommodate an inflow of the fluid that will infuse the beverage medium to produce the infusion beverage and at least one outlet duct for delivering the infusion beverage from the inner volume, the inlet chamber and the at least one outlet duct are positioned at a bottom of the pack, and

the pack further comprising a compartmental channel and a filtering element together defining a dedicated chamber inside the inner volume of the pack where the beverage medium is confined, the filtering element is configured for preventing particles of the beverage medium from entering the at least one outlet duct when the fluid is introduced in the pack and the infusion beverage is prepared, thus preventing the particles from being delivered together with the infusion beverage,

wherein the inlet chamber and the at least one outlet duct are comprised in a fitment assembly, the fitment assembly being arranged at the bottom of the pack and being at least partially positioned between two joined edges of the sheets of material, wherein the fitment assembly further comprises two symmetrically arranged inlet notches allowing the fluid to flow out of the inner volume of the inlet chamber.

13. A pack having an inner volume in which a beverage medium is stored and from which an infusion beverage is prepared when a fluid is introduced inside the pack, the inner volume is defined by sheets of material joined to one another at their edges, such that the inner volume presents a generally plane shape,

the pack comprising an inlet chamber configured to accommodate an inflow of the fluid that will infuse the beverage medium to produce the infusion beverage and at least one outlet duct for delivering the infusion beverage from the inner volume, the inlet chamber and the at least one outlet duct are positioned at a bottom of the pack, and

the pack further comprising a compartmental channel and a filtering element together defining a dedicated chamber inside the inner volume of the pack where the beverage medium is confined, the filtering element is configured for preventing particles of the beverage medium from entering the at least one outlet duct when the fluid is introduced in the pack and the infusion beverage is prepared, thus preventing the particles from being delivered together with the infusion beverage, wherein the at least one outlet duct is closed by a plug, the plug is attached to the fitment assembly on another side of the fitment assembly, the at least one outlet duct further comprising a weakened area near the plug allowing the separation of the plug from the at least one outlet duct.

14. A pack having an inner volume in which a beverage medium is stored and from which an infusion beverage is prepared when a fluid is introduced inside the pack, the inner volume is defined by sheets of material joined to one another at their edges, such that the inner volume presents a generally plane shape,

the pack comprising an inlet chamber configured to accommodate an inflow of the fluid that will infuse the beverage medium to produce the infusion beverage and at least one outlet duct for delivering the infusion beverage from the inner volume, the inlet chamber and the at least one outlet duct are positioned at a bottom of the pack, and

the pack further comprising a compartmental channel and a filtering element together defining a dedicated chamber inside the inner volume of the pack where the beverage medium is confined, the filtering element is configured for preventing particles of the beverage medium from entering the at least one outlet duct when the fluid is introduced in the pack and the infusion beverage is prepared, thus preventing the particles from being delivered together with the infusion beverage,

wherein the filtering element is arranged transversely in the inner volume of the pack and fixed to lateral edges of the sheets of material configuring the inner volume,

wherein the filtering element comprises a primary part for a primary filtering of the infused beverage separating the fluid from the beverage medium and a secondary part for a further filtering of the infused beverage.

15. A machine for preparing an infusion beverage from a pack having an inner volume in which a beverage medium is stored and from which an infusion beverage is prepared when a fluid is introduced inside the pack, the inner volume being defined by sheets of material joined to one another at their edges, such that the inner volume presents a generally plane shape, the pack comprising an inlet chamber configured to accommodate an inflow of the fluid that will infuse the beverage medium to produce the infusion beverage and at least one outlet duct for delivering the infusion beverage from the inner volume, the inlet chamber and the at least one outlet duct being positioned at a bottom of the pack, and the pack further comprising a compartmental channel and a filtering element together defining a dedicated chamber inside the inner volume of the pack where the beverage medium is confined, the filtering element is configured for preventing particles of the beverage medium from entering the at least one outlet duct when the fluid is introduced in the pack and the infusion beverage is prepared, thus preventing the particles from being delivered together with the infusion beverage, the machine comprising a receiver adapted to accommodate the pack, the machine further comprising an injector configured for accommodating the fluid inside an inner volume of the inlet chamber, and the machine further comprising a cutting device for cutting a plug from the at least one outlet duct.

16. The machine according to claim 15 , wherein the injector comprises a fluid needle configured for accommodating the fluid inside the inner volume of the inlet chamber at a pressure below around 1 bar.

17. The machine according to claim 15 , further comprising a data reader configured to read and retrieve information of at least one process parameters from an identification means in the pack.

18. The machine according to claim 17 , wherein the data reader comprises a light emitter device.