Portion capsule having an identifier

1. A beverage system for producing a coffee or tea beverage, comprising:

a beverage machine comprising: a holder configured to receive and support a portion capsule, and a pump controlled to push water into the portion capsule to produce the beverage, the portion capsule comprising: a metal cover attached to a metal base element having a cavity within which a beverage material is located, the base element including a circumferential flange having a top side onto which the cover is attached, the portion capsule being free of a filter, the cavity comprising a plurality of ribs that are radially spaced, vertically oriented, and configured to extend toward a central portion of the cavity, the ribs are free from extending all the way to a bottom of the cavity, the base element has a side wall with an electrically conductive section and radially spaced and vertically oriented grooves, the grooves are free from extending all the way to a bottom of the base element and are also free from extending all the way to a region of the side wall that is immediately adjacent to the flange.

2. The beverage system according to claim 1 , wherein the beverage machine comprises a pair of holding arms for engaging the portion capsule, and wherein the base element and/or the cover are made of aluminum.

3. The beverage system according to claim 2 , wherein the holding arms engage opposing sides of the portion capsule, and wherein the bottom of the base element comprises an indentation.

4. The beverage system according to claim 3 , wherein the water is pushed into the portion capsule along a central axis of the portion capsule, wherein the cover is bowed outwardly in a central region of the base element relative to a region of the cover adjacent to the flange.

5. The beverage system according to claim 4 , wherein the beverage machine comprises a mandrel that pierces the cover in a region that is offset from the central axis.

6. The beverage system according to claim 5 , wherein the beverage machine comprises a seal that seals against the cover, and the side wall of the portion capsule comprises an upper section and a lower section, the upper section is located adjacent to the flange, the lower section is located below the upper section, wherein the side wall of the lower section has a greater slope than the side wall of the upper section.

7. The beverage system according to claim 6 , wherein the base element and the cover are each made of aluminum.

8. The beverage system according to claim 1 , wherein the water is pushed into the portion capsule along a central axis of the portion capsule, wherein the cover is bowed outwardly in a central region of the base element relative to a region of the cover adjacent to the flange.

9. The beverage system according to claim 8 , wherein the beverage machine comprises a mandrel that pierces the cover in a region that is offset from the central axis, the beverage machine comprises a seal that seals against the cover.

10. The beverage system according to claim 1 , wherein the beverage machine is operable to pierce the cover in a region that is offset from a central axis of the portion capsule.

11. The beverage system according to claim 10 , wherein the beverage machine comprises a dropping box for the portion capsule to fall into, and a pair of holding arms for engaging the portion capsule.

12. The beverage system according to claim 11 , wherein the base element and/or the cover are made of aluminum.

13. The beverage system according to claim 11 , wherein the base element and the cover are made of aluminum.

14. The beverage system according to claim 1 , wherein the cover is bowed outwardly in a central region of the base element relative to a region of the cover adjacent to the flange.

15. The beverage system according to claim 1 , wherein the beverage machine comprises a seal that seals against the cover, and the side wall of the portion capsule comprises an upper section and a lower section, the upper section is located adjacent to the flange, the lower section is located below the upper section, wherein the side wall of the lower section has a greater slope than the side wall of the upper section.

16. The beverage system according to claim 15 , wherein the bottom of the base element comprises an indentation.

17. A beverage system for producing a coffee or tea beverage, comprising:

a beverage machine comprising: a holder configured to receive and support a portion capsule, and a pump controlled to push water into the portion capsule to produce the beverage, the portion capsule comprising: a metal cover attached to a metal base element having a cavity within which a beverage material is located, the base element including a circumferential flange having a top side onto which the cover is attached, the portion capsule being free of a filter, the cavity comprising a plurality of ribs that are radially spaced, vertically oriented, and configured to extend toward a central portion of the cavity, the ribs are free from extending all the way to a bottom of the cavity, the base element has a side wall with radially spaced and vertically oriented grooves, the grooves are free from extending all the way to a bottom of the base element and are also free from extending all the way to a region of the side wall that is immediately adjacent to the flange,

wherein the beverage machine comprises a seal that seals against the cover, and a mandrel that pierces the cover in a region that is offset from a central axis of the portion capsule.

18. The beverage system according to claim 17 , wherein the beverage system comprises a detector and the portion capsule comprises an identifier, the detector is configured to read the identifier after the portion capsule is received into the holder, and the pump is controlled to push the water into the portion capsule only upon a determination that the read identifier agrees with a stored reference.

19. The beverage system according to claim 18 , wherein the pump is controlled to not push the water into the portion capsule upon a determination that the read identifier does not agree with the stored reference.

20. The beverage system according to claim 17 , wherein the beverage machine comprises a pair of holding arms for engaging the portion capsule, and wherein the base element and/or the cover are made of aluminum, the holding arms engage opposing sides of the portion capsule, and wherein the bottom of the base element comprises an indentation.

21. A beverage system comprising:

A) a single-serve capsule comprising:

i) a base element with a cavity, in which a beverage material is provided, the base element including a wall that is symmetrical about a central longitudinal axis thereof and having a closed, rounded bottom portion, the base element is free of a filter inside of the cavity;

ii) a flange extending outwardly from the base element, the flange having a top side and an opposing bottom side;

iii) a cover fastened to the top side of the flange, the cover includes a region configured to be pierced at a location that is offset from the central longitudinal axis;

iv) a barrier layer to prevent moisture or aroma from escaping out of the single-serve capsule; and

v) an individualization identifier having a detectable repeat pattern at the bottom side of the flange;

B) a beverage machine comprising:

i) a piercing spike that pierces the cover at the location that is offset from the central longitudinal axis;

ii) a detector including an optical sensor to read the individualization identifier;

iii) a pump that supplies water into the single-serve capsule only after the individualization identifier is read by the detector;

iv) a groove that is laterally offset from the piercing spike; and

v) a seal that is at least partially seated in the groove and configured to bear against a top side of the cover in a region between a peripheral edge of the cover and the region of the cover that is pierced by the piercing spike.