Portion capsule (1) to produce a tea beverage (12) that has a fundamentally closed container that is filled at least in part with an infusion substance (10 ') intended for the infusion process, the portion capsule being able to be inserted (1) in an infusion chamber machine (13, 15) to infuse the infusion substance (10 '), presenting the closed container has a fundamentally truncated cone-shaped base element (2) with a closed bottom which is sealed on its side away from the bottom by means of a cover sheet (4), forming a hollow space for the reception of the infusion substance (10 ') between the bottom and the cover sheet (4), presenting the portion capsule ( 1) a filter element (5), characterized in that the filter element (5) comprises a filter felt and that the infusion substance (10 ') comprises a drinking substance (10) to produce a tea beverage (12) , anticipating the substance a of beverage (10) to be stored in the portion capsule (1) and to be infused into the portion capsule (1) by means of hot water introduced into the portion capsule (1) under pressure, the beverage substance being configured ( 10) mainly in the form of particles and comprising tea at least in part, the beverage substance (10) having an average particle size (D4.3) of between 500 micrometers and 1500 micrometers.Cápsula de porción (1) para producir una bebida de té (12) que presenta un recipiente fundamentalmente cerrado que se llena al menos en parte con una sustancia de infusión (10') prevista para el proceso de infusión, pudiéndose insertar la cápsula de porción (1) en una máquina de cámara de infusión (13, 15) para infundir la sustancia de infusión (10'), presentando el recipiente cerrado tiene un elemento de base (2) de forma de cono fundamentalmente truncado con un fondo cerrado que está sellado en su lado alejado del fondo por medio de una lámina cubridora (4), configurándose un espacio hueco para la recepción de la sustancia de infusión (10') entre el fondo y la lámina cubridora (
