PROCESS FOR UPGRADING GREEN COFFEE

• Main Authors: PONZONI G,US, STEFANUCCI A,US, PROTOMASTRO M,US
• Format: Patent
• Language: English
• Published: 23.10.1973
• Subjects: COFFEE; FOODS OR FOODSTUFFS; HUMAN NECESSITIES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF; TEA; THEIR SUBSTITUTES; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES

An improved process for upgrading green coffee by contacting green coffee with water and subjecting the mixture to elevated temperatures under pressure has been discovered. The key to the present invention is to control the moisture content of the green coffee and the steam pressure contacting the coffee, thus avoiding undue expansion of the coffee bean by introducing coffee and water into a vessel pressurized by steam such that expansion is inhibited during the treatment. Expansion of the beans on discharge from the pressure vessel is also minimized by avoiding a sudden release of pressure when the beans are discharged from the vessel.