High pressure extraction capsule

Abstract

A high pressure extraction capsule (1) for single beverage preparation has a porous hydrophobic membrane (5, 10) that acts as a barrier to fluid flow up to a certain pressure and exceeding said pressure allows for extracting the fluid with active ingredients but still acts as a barrier to particles, particularly ground herbs or roots, wherein the pore size of the membrane (5, 10) is bigger than 0.45[mu]m and wherein the hydrophobic membrane (5, 10) is arranged to have a surface tension of less than 40 dynes / cm. Preferably the hydrophobic membrane (5, 10) is arranged to have a surface tension of less than 40 dynes / cm, preferably approx. 30 dynes / cm and to have a pore size in the range from 0.45[mu]m to 10[mu]m, preferably from 0.45[mu]m to 5[mu]m. The capsule (1) comprises an inlet port (2), a compartment (3) for holding a substance with active ingredients like, e.g. ground herbs or roots, an outlet port (4) and a hydrophobic membrane (5, 10) that separates the compartment (3) from the outlet port (4). The hydrophobic membrane (5, 10) can be supported by a nonwoven or by support means of the capsule (1). According to another embodiment of the invention the capsule (1) comprises a first compartment (3) and a second compartment (8), wherein the inlet port (2) opens into the first compartment (3) and the second compartment (8) opens out into the outlet port (4), wherein a first membrane (9) separates the second compartment (8) from the outlet port (4), wherein the first compartment (3) is separated from the second compartment (8) by means of a second membrane (10), and wherein the second membrane (10) has a higher water resistance pressure than the first membrane.

Description

technical field [0001] The present invention generally relates to the preparation of ready-to-drink beverages that have the potential to treat or prevent disease or enhance human health. In certain embodiments, the present invention discloses a multi-compartment capsule capable of extracting an active ingredient using high pressure in one compartment, mixing the extract with ingredients from a downstream compartment, and Downstream ingredients are extracted at lower pressure to provide freshly blended extracts for consumer use. Background of the invention [0002] Now, the herb has been used in tea bag form for decades, claiming to improve consumers' well-being. Many clients choose herbs over pharmaceuticals because they are natural ingredients that usually have no side effects. However, making beverages from herbs requires tea bags and some time for preparing the beverage. Herbs in tea bags are often dried and pre-treated, which reduces the potential to improve the healt...

AI Technical Summary

Problems solved by technology

[0008] However, WO2010128031A1 teaches away from such concepts, because thick and rigid plastic support is required below such a large filter surface at the inlet of the vessel, and those extra parts increase the price of the vessel

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