Kit for the preparation of a beverage in a centrifugal brewing device

1. A method for preparing a beverage in a centrifugal brewing device, the method comprising:

providing an insert comprising (i) a ring-shaped portion, (ii) a transversal annular or circular portion inwardly connected to the ring-shaped portion, and (iii) an opening, the ring-shaped portion extending axially above and below the transversal annular or circular portion;

the ring-shaped portion having a dimension h;

inserting a capsule into the insert in a removable manner, the capsule comprising a bottom wall and a side wall, said bottom wall and side wall being covered or made of a liquid-tight material;

placing the capsule inserted in the insert in a capsule holder of the centrifugal brewing device;

engaging the ring-shaped portion of the insert against a valve member of the centrifugal brewing device to form a valve;

feeding liquid into the capsule;

rotating the capsule along a central axis to produce a centrifugal force on the liquid fed into the capsule and to force the beverage out of the capsule, the valve creating a restriction to beverage flow, and the opening of the insert allowing the beverage flow to traverse the insert.

2. The method of claim 1 comprising varying the restriction to the beverage flow by varying a rotational speed of the capsule.

3. The method of claim 1 wherein providing the insert further comprises selecting the insert from a set of inserts each insert having a different dimension h to adjust a counter-pressure on the valve member of the centrifugal brewing device.

4. The method of claim 1 , wherein the insert further comprises a cup-shaped portion comprising a cavity for receiving the capsule.

5. The method of claim 4 , wherein the insert comprises a central tubular portion fitting in a central aperture of the capsule.

6. The method of claim 1 , wherein the opening of the insert comprises a plurality of through-openings.

7. The method of claim 1 , wherein the opening of the insert allows gas and/or the beverage to flow outwardly or through the insert.

8. The method of claim 1 , wherein the insert comprises a structure in relief and/or recess on an upper surface and/or a lower surface of the ring-shaped portion, the structure in relief and/or recess creating beverage radial flow passages during centrifugation.

9. The method of claim 8 , wherein the structure in relief and/or recess comprises grooves.

10. The method of claim 9 , wherein the grooves have a shape selected from the group consisting of a rectilinear shape, a radial shape, a curved shape, a “Z” shape, and combinations thereof.

11. The method of claim 9 comprising controlling the beverage flow through the grooves or the opening of the insert without opening the valve.

12. The method of claim 11 , wherein the opening of the valve is dependent on a factor selected from the group consisting of a flow passage surface area at the grooves, the opening of the insert, a counter-force applied by the dimension h of the ring-shaped portion, and combinations thereof.

13. The method of claim 1 , wherein the capsule comprises containment walls forming a cup-shaped body containing beverage ingredients, and the capsule further comprises a lid connected to the cup-shaped body.

14. The method of claim 13 , wherein the center of the lid comprises a tubular guiding portion.

15. The method of claim 14 comprising the tubular guiding portion guiding a water injection member of the centrifugal brewing device.

16. The method of claim 1 , wherein the ring-shaped portion of the insert has an outer diameter larger than the largest diameter of the capsule.

17. The method of claim 3 , wherein dimension h for the insert selected from the set of inserts is between 1.5 and 4.0 mm.

18. The method of claim 3 , wherein the dimension h for the insert selected from the set of inserts is are between 1.8 and 3.0 mm.