Capsule for preparation of a beverage

Inactive Publication Date: 2013-08-22
NESTEC SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0022]raised elements which open the said membrane in order to create punctures and allow the liquid extract to pass through the

Problems solved by technology

It was found that this effect of pressure build-up inside the capsule before it self-opens, is increased by the fact that the smallest coffee particles (so-called “fines”) present in the mass of roast and grou

Method used

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  • Capsule for preparation of a beverage
  • Capsule for preparation of a beverage

Examples

Experimental program
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Embodiment Construction

[0037]In the following detailed description, the embodiment considers that the capsule according to the invention comprises coffee, in roast and ground and / or soluble powder form. However, the capsule as described herebelow could be filled with any other food ingredient that would be suitable for being extracted and / or dissolved by a fluid under pressure, in a beverage preparation machine described in preamble. Such ingredients can be in gel, concentrate, powder or particulate soluble form and include but are not limited to: tea, dehydrated soup, milk powder, infant formula powder, fruit juice concentrate, dairy creamers, sweetening ingredients, natural or artificial, cocoa-based ingredients, spices, meat, fish, vegetable ingredients, and mixtures thereof.

[0038]Illustrated in FIG. 1, is a capsule 1 for delivering a drink by injecting a pressurized fluid into said capsule. The injection is done by placing the capsule into a machine (not illustrated in the drawing), which machine comp...

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Abstract

The present invention is directed to a capsule (1) for delivering a drink by injecting a pressurized fluid into the capsule comprising: a hollow body and an injection wall (4) which is impermeable to liquids and to gas and which is attached to the body and adapted to be punctured by an injection means (2) foreign to the capsule, a chamber (5) containing a bed of at least one food substance to be extracted, means (7, 9, 10) for retaining the internal pressure in the said chamber, said means comprising a pierceable membrane (7), characterized in that said capsule (1) further comprises a secondary means (12) for maintaining the bed of substance at a distance d from said pierceable membrane (7), said distance d being at least 1 mm, preferably at least 2 mm, more preferably at least 3 mm, and in that the pressure retaining means comprise: the pierceable membrane (7), raised elements (9) which open the said membrane (7) in order to create punctures and allow the liquid extract to pass through the punctures; the punctures in the membrane (7) being obtained under the effect of the rise in pressure in the chamber (5) of the capsule (1).

Description

FIELD OF THE INVENTION[0001]The present invention concerns a capsule for the preparation of beverages in a beverage preparation machine, involving a high pressure extraction and / or dissolution.BACKGROUND OF THE INVENTION[0002]The present invention is directed to a capsule (that is preferably a completely closed capsule although one its walls might be open), for use in a beverage preparation machine. The machine comprises a receptacle for accommodating said capsule and a fluid injection system for injecting a fluid, preferably water, under pressure into said capsule. Water injected under pressure in the capsule, for the preparation of a coffee beverage according to the present invention, is preferably hot, that is to say at a temperature above 70° C. However, in some particular instances, it might also be at ambient temperature. The pressure inside the capsule chamber during extraction and / or dissolution of the capsule contents is typically about 1 to 6 bar for dissolution products, ...

Claims

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Application Information

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IPC IPC(8): B65D85/804
CPCB65D85/8043B65D85/804
Inventor DOGAN, NIHANGOUX, SAMUEL
Owner NESTEC SA
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