METHOD TO ROAST COFFEE BEANS

The invention concerns a method to roast coffee beans in a roasting system (10), said system comprising: -a roasting apparatus (2), and -a smoke treating unit (3) configured to treat the smoke produced by the roasting apparatus, said smoke treating unit comprising at least an electrostatic precipita...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DUBIEF, FLAVIEN FLORENT, LEMMENS, RIEN DENISE M, DEGREEF, THOMAS RUDI S, BAEKELANDT, MAXIME, MOREND, JOEL, CELIS, MICHIEL ALEXANDER
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS COFFEE FOODS OR FOODSTUFFS HUMAN NECESSITIES MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLESOR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS MANUFACTURE, PREPARATION, OR INFUSION THEREOF PEELING VEGETABLES OR FRUIT IN BULK PERFORMING OPERATIONS SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS TEA THEIR SUBSTITUTES THEIR TREATMENT, NOT COVERED BY OTHER CLASSES TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention concerns a method to roast coffee beans in a roasting system (10), said system comprising: -a roasting apparatus (2), and -a smoke treating unit (3) configured to treat the smoke produced by the roasting apparatus, said smoke treating unit comprising at least an electrostatic precipitator (222), wherein, during each roasting operation implemented in the roasting apparatus, the method comprises the steps of: -monitoring the voltage at the ionization wires and/or to the voltage at the electrodes along the time of the roasting operation, -comparing the monitored voltage to a pre-determined upper voltage threshold V1 and to one pre-determined lower voltage threshold V2, and -if, during a period of time Δt of the roasting operation, the monitored voltage is inferior to said pre-determined upper voltage threshold V1 while being superior to said pre-determined lower voltage threshold V2, then displaying a cleaning status requirement.