Process of producing dual-compacted ground roast coffee tablet

摘要

A ground roast coffee tablet which is capable of being brewed in a conventional automatic drip coffee maker, and which exhibits sufficient strength to withstand all aspects of manufacture, handling, packaging, transport without breakage but also readily disintegrates when contacted with hot water during brewing, is made by subjecting conventional ground, roasted coffee to a multi-step compaction process in which at least two compression steps are carried out in the same compaction die.

主权项

1. A process for producing a coffee tablet for use in an automatic drip coffee maker (ADC) comprising:
subjecting ground roast coffee to a multi-step compaction process including a pre-compression step, wherein the ground roast coffee is compressed at a first compaction pressure between 10.6 MPa and 63.6 MPa, and a subsequent main compression step, wherein there is a delay period between 80-900 milliseconds after the pre-compression step and before the main compression step, and no pressure is applied to the ground roast coffee during the delay period, wherein the pre-compression step being carried out at a lower compaction force but in the same compaction die as the main compression step so as to form an unbroken coffee tablet prior to use, wherein the coffee tablet exhibits a hardness when dry of at least about 30 N (Newtons), a friability when dry of no greater than about 10%, and readily disintegrates when contacted with hot water during brewing in the ADC.