A single-use filtering capsule for producing an alimentary infusion includes a casing inside which is positioned a filtering sachet containing an aromatic essence. The sachet is perimetrally fixed to the casing to separate two base extremities of the casing. A first perforable closure element allows the access of water to the aromatic essence. The first closure element is attached in closure of a first base extremity of the casing to which the sachet directs the inner side, a second closure element of a second base extremity of the casing to which the sachet directs the outer side. The capsule also includes dissociable member between the second closure element and the second base extremity of the casing, and gripping member for the second closure element for its dissociation from the second base extremity of the casing before the positioning of the capsule in an infusion apparatus.