Title:
COFFEE BEAN CRACKING OCCURRENCE SCHEDULE PREDICTION METHOD, COFFEE BEAN CRACKING OCCURRENCE SCHEDULE PREDICTION DEVICE, COFFEE BEAN CRACKING DETECTION METHOD, COFFEE BEAN CRACKING DETECTION DEVICE, AND ROASTED COFFEE BEAN PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2018/159164
Kind Code:
A1
Abstract:
Provided is a method for easily and accurately detecting or predicting cracking occurrence when roasting coffee beans. A coffee bean cracking detection method according to the present invention comprises: a sound measurement step for temporally measuring sound generated from coffee beans that are being roasted; and a cracking detection step for detecting cracking of the coffee beans on the basis of sound pressure having a frequency in a range included within the range of 5-80 kHz in the sound. The sound measurement step is preferably started two minutes after the start of roasting. Preferably, the method further comprises an initial carbon monoxide level measurement step for measuring the level of carbon monoxide generated from coffee beans that are being roasted, at least until two minutes elapses from the start of the roasting.
More Like This:
Inventors:
YAMAMOTO HIROYUKI (JP)
Application Number:
PCT/JP2018/002158
Publication Date:
September 07, 2018
Filing Date:
January 24, 2018
Export Citation:
Assignee:
YAMAMOTO HIROYUKI (JP)
International Classes:
A23F5/04; A23N12/08; G01H3/10; G01N33/14
Foreign References:
| CA2267608A1 | 2000-09-30 | |||
| AU2004100812A4 | 2004-11-18 | |||
| KR20150131599A | 2015-11-25 |
Other References:
WILSON, PRESTON S. ET AL.: "Coffee roasting acoustics", THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, vol. 135, no. 6, 13 May 2014 (2014-05-13), pages EL266, XP055537940
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
Download PDF: