Capsule, method and device for preparing a nutritional product

摘要

A capsule for the preparation of a nutritional product in a device adapted to supply liquid into the capsule. The capsule includes at least one compartment containing nutritional ingredients for the preparation of the nutritional product in combination with the supplied liquid, and a filter adapted for removing contaminants contained in the liquid. The capsule also has a selectively openable gas inlet which is placed on or in the capsule to allow gas introduction from outside the capsule into the compartment without passing through the filter.

主权项

1. A capsule for the preparation of a nutritional product in a device adapted to supply liquid into the capsule, the capsule comprising:
a body comprising a side wall that delimits the body into a filter receiving seat and a compartment; the compartment containing nutritional ingredients for the preparation of the nutritional product in combination with the supplied liquid; a filter unit adapted for removing contaminants contained in the liquid, the filter unit comprising a microporous membrane encased in a rigid casing, the microporous membrane comprising a filtering surface, the casing comprising an inlet wall and an outlet wall, the casing is positioned in the filter receiving seat; and the filter-receiving seat is positioned upstream of the compartment and is formed by an extension portion of the body that extends radially outward from the side wall of the body such that the seat is laterally offset from the compartment and at least 60% of the filtering surface of the microporous membrane does not overlap the compartment; a top membrane that closes and seals the compartment and seals the filter unit in the filter-receiving seat; a selectively openable gas inlet formed in the inlet wall to allow gas introduction from outside the capsule into the compartment containing the nutritional ingredients without passing through the microporous membrane; an outlet nozzle communicating with the compartment and formed in the outlet wall; and a liquid conduit in the filter unit and placed upstream of the outlet nozzle and downstream of the microporous membrane, wherein the gas inlet has a defined size, in open configuration, and is provided in a the inlet wall of the casing, and the gas inlet merges with the liquid conduit.