A sachet for preparation of a beverage. The sachet has a compact roast and ground coffee cake having first and second cake opposed surfaces extending between to a peripheral cake edge. The first opposed surface is substantially convex and configured for ensuring leaktightness in an extraction chamber that is configured for injecting water and extracting the coffee. The peripheral edge has a peripheral surface that is generally normal to the opposed surfaces. An outer sheet of a flexible material is impermeable to oxygen and water vapor and contains and impermeably seals the cake therein.

Title
Sealed flexible sachet and a method for its production
Application Number
10/305023
Publication Number
20030077359
Application Date
November 27, 2002
Publication Date
April 24, 2003
Inventor
Alfred Yoakim
Jacques Schaeffer
Roland Rossier
Jean Pierre Pleisch
Olivier Fond
Agent
Winston & Strawn
DC, US
Assignee
Nestec
IPC
B65B 29/02
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