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

Abstract

A capsule designed for insertion in a centrifugal beverage production device for preparing a beverage from a substance contained in the capsule by introducing liquid in the capsule and passing liquid through the substance using centrifugal forces. The capsule has a body with bottom and open ends that are spaced apart in the axial direction, an upper wall for covering the body at its open end along a direction transverse to the axial direction, and an enclosure between the body and upper wall containing a predetermined amount of beverage substance. The capsule also includes an annular pressure-setting ring configured for adjusting the backpressure in the beverage production device. The pressure-setting ring provides improved quality of in-cup coffee. Also, a set of capsules having pressure-setting rings of different dimensions is provided for setting different backpressure when the capsules are engaged in a centrifuging beverage production device.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a capsule designed for preparation of a beverage by centrifugation, the use of a capsule in a beverage producing device and a capsule system combining a capsule and a beverage producing device for preparing a beverage from a beverage substance contained in the capsule and by passing a liquid fed by the device through the substance in the capsule using centrifugal forces.[0002]In particular, the present invention relates to a capsule forming in conjunction with a beverage production device, a dedicated restriction valve, thereby constituting a pressure-setting means for the centrifuged liquid leaving the capsule.BACKGROUND OF THE INVENTION[0003]It exist systems for preparing beverages such as coffee by forcing a liquid through ingredients contained in the capsule using centrifugal forces.[0004]WO 2008 / 148604 for example relates to a capsule for preparing a beverage or liquid food from a substance, in a centrifugal brewing u...

AI Technical Summary

Benefits of technology

[0033]In a mode, the annular pressure-setting ring of the capsule is hollow. More preferably, the pressure-setting ring is formed as an annular curl. By “curl” or “curled end”, it is meant a portion of substantially rolled material, e.g., a rolled ply, forming a portion in relief at the free end of the flange-like rim of the capsule. The curl of material can be partially or fully rolled over. Rolling of the curl can be obtained by different techniques such as forming, embossing, deep-drawing, etc. More preferably, the curl is rolled over to form a substantially closed, hollow curl. Such chara

Problems solved by technology

For example, in traditional espresso or lungo coffee type brewing methods using a pressure pump, it is very difficult to master all the parameters which influence the quality of extraction of delivered coffee extract.

Therefore, it is not easy to vary the extraction pressure and flow rates because there are essentially determined by the resistance of the bed of coffee and the downstream filtering system.

For a centrifugal extraction, the quality of the beverage to be prepared (intensity or st

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