A compostable capsule for making infusion or soluble beverages, comprising: - a cup in which there is defined an inner volume in which there is contained at least one substance to be infused or dissolved; said cup being provided: -- on one side, with a bottom with an outlet opening for the beverage, -- on the opposite side, with an inlet opening of a fluid; -- internally with an inner base comprising: --- a central portion covering the opening, --- a labyrinth portion arranged about the central portion, --- a perimeter edge arranged about the central portion, --- a beverage collection depression arranged between the perimeter edge and the labyrinth portion, --- a beverage conveying depression arranged between the labyrinth portion and the central portion; - a cover sealingly fastened to the cup, to close the opening; - an at least partially flexible sealing disc sealingly fastened on the inner base of the cup to ensure, together with the cover, a seal of the inner volume; wherein the opening for the outflow of the beverage is determined by the at least partial deformation of the sealing disc, a deformation which loses the sealing of the volume; wherein the cup, the cover, and the sealing disc are made of compostable material; characterized in that the cup, the sealing disc and the cover comprise polylactic acid and/or polybutylene succinate and/or polyhydroxyalkanoate. - a cup in which there is defined an inner volume in which there is contained at least one substance to be infused or dissolved; said cup being provided: -- on one side, with a bottom with an outlet opening for the beverage, -- on the opposite side, with an inlet opening of a fluid; -- internally with an inner base comprising: --- a central portion covering the opening, --- a labyrinth portion arranged about the central portion, --- a perimeter edge arranged about the central portion, --- a beverage collection depression arranged between the perimeter edge and the labyrinth portion, --- a beverage conveying depression arranged between the labyrinth portion and the central portion; -- on one side, with a bottom with an outlet opening for the beverage, -- on the opposite side, with an inlet opening of a fluid; -- internally with an inner base comprising: --- a central portion covering the opening, --- a labyrinth portion arranged about the central portion, --- a perimeter edge arranged about the central portion, --- a beverage collection depression arranged between the perimeter edge and the labyrinth portion, --- a beverage conveying depression arranged between the labyrinth portion and the central portion; --- a central portion covering the opening, --- a labyrinth portion arranged about the central portion, --- a perimeter edge arranged about the central portion, --- a beverage collection depression arranged between the perimeter edge and the labyrinth portion, --- a beverage conveying depression arranged between the labyrinth portion and the central portion; - a cover sealingly fastened to the cup, to close the opening; - an at least partially flexible sealing disc sealingly fastened on the inner base of the cup to ensure, together with the cover, a seal of the inner volume; wherein the opening for the outflow of the beverage is determined by the at least partial deformation of the sealing disc, a deformation which loses the sealing of the volume; wherein the cup, the cover, and the sealing disc are made of compostable material; characterized in that the cup, the sealing disc and the cover comprise polylactic acid and/or polybutylene succinate and/or polyhydroxyalkanoate.