Abstract: The invention concerns a method to check a roasting system (10), said system comprising: —a roasting apparatus (2), said apparatus producing smoke, and —a smoke treating unit (3) configured to treat the flow of smoke produced by the roasting apparatus and comprising: at least one smoke filtering device (221, 222, 223), a dismountable smoke collecting device (21) at least one temperature sensor (24) configured to measure the temperature T of the flow of smoke inside the smoke treating unit (3), a smoke driver (23) configured to drive smoke from the roasting apparatus (2) through said smoke treating unit, wherein the method comprises the steps of: —operating the roasting apparatus in order to produce hot gas, —monitoring the temperature of the smoke, and —observing at least one behaviour of the monitored temperature along time, —comparing said at least one observed behaviour of the monitored temperature with a predetermined behaviour of temperature corresponding to the presence of the dismountable smoke collect

Abstract: The invention concerns a method to roast coffee beans in a roasting system, said system comprising: —a roasting apparatus (1), and —a smoke treating unit (2) configured to treat the smoke produced by the roasting apparatus, said smoke treating unit comprising at least an electrostatic precipitator (222), said electrostatic precipitator comprising at least one cell, said cell comprising ionization wires, collecting electrodes and repelling electrodes and said ionization wires being supplied with an electrical power in order to apply a high voltage V to the ionization wires, wherein, during each roasting operation implemented in the roasting apparatus, the method comprises the steps of: —monitoring the voltage V at the ionization wires and/or the electrodes along the time of the roasting operation, —if the monitored voltage becomes inferior to a pre-determined voltage threshold V0 during a period of time of the roasting operation, and —if said period of time, where the monitored voltage V is inferior to said lo

Abstract: 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 ?t 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.

Abstract: The invention concerns a method to check a roasting system (10), said system comprising: a roasting apparatus (2), said apparatus producing smoke, and—a smoke treating unit (3) configured to treat the flow of smoke produced by the roasting apparatus, and comprising a filtering device (221) and a couple of temperature sensors (24, 26) configured to measure temperatures of the flow of smoke upstream and downstream the filtering device (221), wherein, during a roasting operation, the method comprises the steps of:—comparing the performances of the temperatures during at least a period of time of the roasting operation, and—if the performances are similar along time, then displaying an alarm.

Abstract: 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 one filtering device (221, 222, 223) configured for filtering particulate matters or VOCs, said filtering device being able to retain a pre-determined maximal amount of particulate matters or VOCs, wherein at each roasting operation implemented in the roasting apparatus, the method comprises the steps of: —obtaining the quantity of beans and the level of roasting applied to the beans, —determining the amount of or VOCs retained in the filtering device, —determining the global amount of particular matters or VOCs retained in the filtering device during all the roasting operations implemented since the last cleaning operation of the filtering device, —estimating the number of roasting operations still able to be implemented before said global

Abstract: The invention concerns a system for roasting coffee beans comprising: —a roasting apparatus (1), said apparatus producing smoke, and—a smoke treating unit (2) configured to collect and treat smoke produced by the roasting apparatus, wherein: —the roasting apparatus comprises a smoke outlet (11), and—the smoke treating unit comprises: a smoke inlet (21) configured to cooperate with the smoke outlet of the roasting apparatus, a smoke filtering sub-unit (22) comprising at least an active carbon filter (221), a smoke driver (23) configured to circulate smoke through the smoke treating unit from the smoke collecting device to an outlet (25) of the smoke treating unit, wherein the smoke treating unit (2) comprises an air inlet (24) configured to mix the smoke produced by the roasting apparatus (1) with ambient air before the smoke is circulated through the smoke filtering sub-unit (22).