Portion capsule having an identifier

1) A single-serve capsule for making a beverage, having a base element with a cavity that is free of a filter, and in which a raw beverage material is provided, the cavity including radially spaced and vertically oriented convexities, wherein a width defined between each of the plurality of convexities is wider than a width of each of plurality of convexities, the capsule having a flange, the cavity being closed by a cover, which is fastened on a top side of the flange, the base element comprises a wall region extending between the flange and a bottom region of the base element, the wall region includes radially spaced and vertically oriented grooves that are free from extending entirely to the bottom region, a width of the side wall defined between each of the plurality of grooves is wider than a width of each of plurality of grooves,

• wherein the capsule has an identifier, which makes it possible to individualize the single-serve capsule, the identifier is a barcode on the wall region and on a bottom side of the flange.