Portion capsule and process for production of a beverage with a portion capsule

A method for producing a beverage using a portion capsule comprising a capsule body with a capsule base and a cover, a cavity for accommodating a pulverulent or beverage base being formed between the capsule base and the cover, and a filter element being arranged between the beverage base and the capsule base, the filter element comprising a non-woven having a felt structure such that no crema is formed on the beverage, the method comprising:

• wherein the portion capsule is provided in a first method step, wherein the capsule base is perforated by means of an external perforation means in a second method step, and wherein the filter element is at least partially spaced apart from the capsule base in a third method step;
• and
• wherein, when the central region is spaced apart from the capsule base during the third method step, the filter element comprising a material reservoir having a corrugated or folded region, the material of the filter element moves out of the material reservoir in the direction of the capsule base, with the corrugated or folded region of the filter element being at least partially smoothed.