Capsule and system for preparing a beverage by centrifugation in a beverage production device

A system comprising a capsule and further comprising a beverage production device for preparing a beverage by introducing liquid into the capsule and passing the liquid through a beverage substance therein using centrifugal forces,

• the capsule comprising:
• a body comprising a bottom end and an open end spaced apart in an axial direction;
• an upper wall covering the body at the open end along a direction transverse to the axial direction;
• an enclosure containing an amount of the beverage substance between the body and the upper wall;
• a rim extending outwardly from the body and comprising an annular flange portion;
• and
• an annular pressure-setting ring extending transversally and axially beyond the annular flange-portion of the rim, and wherein the annular pressure-setting ring is not hollow,
• wherein the body does not contain aluminum;
• and
• the beverage production device comprising:
• a capsule holder for holding the capsule at least at the rim during centrifugation of the capsule by a rotational drive member of the beverage production device;
• and
• a spring-loaded valve member configured to be moved in the axial direction by the annular pressure-setting ring of the capsule when the capsule is inserted and closed in the beverage production device to provide a flow restriction valve that restricts exit of the beverage from the capsule.

A method for preparing a beverage, the method comprising:

• introducing liquid from a liquid injecting unit of a beverage production device into a capsule and passing the liquid through a beverage substance in the capsule to form the beverage using centrifugal forces formed by a rotational drive member of the beverage production device driving the capsule in centrifugation, the capsule comprising a body comprising a bottom end and an open end spaced apart in an axial direction, an upper wall covering the body at the open end along a direction transverse to the axial direction, an enclosure between the body and the upper wall containing the beverage substance, a rim extending outwardly from the body and including an annular flange portion, and an annular pressure-setting ring extending transversally and axially beyond the annular flange portion of the rim, wherein the annular pressure-setting ring is not hollow;
• the beverage production device comprising a capsule holder holding the capsule at least at the rim during centrifugation and further comprising a spring-biasing valve member, wherein the body does not contain aluminum;
• and
• engaging the annular pressure-setting ring of the capsule with the spring-biasing valve member when the capsule is inserted in the beverage production device to provide a flow restriction valve that restricts exit of the beverage from the capsule.

A set of capsules comprising at least two capsules of different beverage types, each of the at least two capsules comprising:

• a body comprising a bottom end and an open end spaced apart in an axial direction, wherein the body includes a depth differing between the respective capsules;
• an upper wall covering the body at the open end along a direction transverse to the axial direction;
• an enclosure containing an amount of beverage substance between the body and the upper wall;
• a rim extending outwardly from the body and including an annular flange portion, and an annular pressure-setting ring extending transversally and axially from the annular flange portion of the rim,
• wherein the annular flange portion of the rim is completely planar, and the annular pressure-setting ring is not hollow,
• wherein a distance by which the annular pressure-setting ring extends in the axial direction, above the plane of the annular flange portion, differs for each capsule as a function of the beverage type, and increases as the depth of the respective capsule decreases,
• wherein the body of each of the at least two capsules does not contain aluminum.