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Title:
METHOD OF TREATING ROASTED COFFEE BEANS AND VAPOR-TREATED ROASTED COFFEE BEANS
Document Type and Number:
WIPO Patent Application WO/2005/011396
Kind Code:
A1
Abstract:
A method of treating roasted coffee beans whereby sourness components in roasted coffee beans can be reduced, the extraction yield can be elevated and the excellent flavor inherent to coffee beans can be made distinct; and vapor-treated roasted coffee beans obtained by using the method. A method of treating roasted coffee beans which comprises supplying water vapor to roasted coffee beans under aeration to thereby treat the roasted coffee beans with the vapor. More specifically speaking, roasted coffee beans are put into a bean container provided with a vapor supply channel and a vapor discharge channel and then vapor is passed from the vapor supply channel to the vapor discharge channel in such a manner that the vapor is discharged from the vapor discharge channel at an outlet temperature higher than the atmospheric level to thereby treat the roasted coffee beans with the vapor; and vapor-treated roasted coffee beans wherein the extraction ratio of the roasted coffee beans is 35% or more and the total content of formic acid and acetic acid amounts to 0.25% by weight or less based on the roasted coffee beans.

Inventors:
NAGAO KOJI (JP)
YOKOO YOSHIAKI (JP)
TAKAHASHI KENZO (JP)
Application Number:
PCT/JP2004/010653
Publication Date:
February 10, 2005
Filing Date:
July 27, 2004
Export Citation:
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Assignee:
SUNTORY LTD (JP)
NAGAO KOJI (JP)
YOKOO YOSHIAKI (JP)
TAKAHASHI KENZO (JP)
International Classes:
A23F5/10; A23F5/16; (IPC1-7): A23F5/10
Foreign References:
JP2004049086A2004-02-19
JP2000342182A2000-12-12
JPS5886043A1983-05-23
JP2000175624A2000-06-27
JPH02283798A1990-11-21
JPH07255379A1995-10-09
JPH06303905A1994-11-01
JPH04287638A1992-10-13
JP2003033137A2003-02-04
JP2001046005A2001-02-20
JPS63287440A1988-11-24
JPS52105258A1977-09-03
JPH04267846A1992-09-24
Other References:
See also references of EP 1654935A4
Attorney, Agent or Firm:
Kitamura, Shuichiro (Nakanoshima 2-chome Kita-k, Osaka-shi Osaka, JP)
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