General Foods Limited

Stephen F Hudak

James P Mahlmann

A dark-colored freeze dried coffee is produced by using a multi-step process to freeze the coffee extract. The coffee extract is chilled to a temperature at which an ice slush forms. The slushed extract is heated in order to melt some of the slush and subsequently re-chilled. This procedure may be repeated one or more times prior to chilling the extract below its eutectic point and freeze drying the frozen extract.

Dark-colored freeze dried coffee

Microporous particles of vegetable material are obtained by spraying an aqueous solution of a vegetable material into an anhydrous solvent, such as ethanol or by boiling particles of spray dried vegetable material in these solvents.

Method for producing aromatized microporous substrates

A water extract of green coffee beans is dried and this dried powder is extracted with a solvent for caffeine such as ethanol. The decaffeinated solids are rehydrated and either reincorporated into the water-extracted green coffee which is then roasted and ground or used as a caffeine-deficient extraction medium for decaffeinating green coffee.

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Croton-on-Hudson, NY, United States of America

Stephen F Hudak