Food or edible material: processes – compositions – and products – Processes – Extraction utilizing liquid as extracting medium
Patent
1998-10-26
2000-05-30
Weinstein, Steven L.
Food or edible material: processes, compositions, and products
Processes
Extraction utilizing liquid as extracting medium
426435, 426 77, 426595, 426144, 426112, A23F 526
Patent
active
060688718
ABSTRACT:
A powdered substance, which is suitable for preparation of a beverage with an extraction fluid, is extracted for preparation of a beverage. The substance which is compacted in a form of a cake, is contained within a sachet between two sachet sheets which, prior to extraction of the substance, protect the substance against oxygen and water vapor and which extend to sealed edges for containing the substance within the sheets prior to and during extraction. In effecting extraction, one sheet is perforated to provide at least one opening for injection of extraction fluid, and extraction fluid is injected under pressure into the sachet for contacting and deforming the compacted substance cake and for extracting the substance in the sachet, and the other sheet is deformed against a surface having portions forming, upon deformation of the second sheet, local breakages in that sheet for opening that sheet for flow of extracted beverage substance. The cake and sheets advantageously are configured so that there is free space between at least one of the cake surfaces and one sheet for allowing the substance to expand between the sheets, and a cake surface may have a concave shape or may have channel impressions therein and be positioned adjacent the at least one opening for injection of extraction fluid.
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Fond Olivier
Pleisch Jean-Pierre
Rossier Roland
Schaeffer Jacques
Yoakim Alfred
Nestec S.A.
Weinstein Steven L.
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