Disclosed herein are devices systems and methods for removing moisture from a material via radio frequency electromagnetic wave exposure. A moisture-removal system can include having spaced apart a first and a second electrical conductor extending along a same first direction, each of the first and second electrical conductor comprising opposing broad top and bottom sides, the broad bottom side of the first electrical conductor facing the broad top side of the second electrical conductor. The system includes a material containing moisture at least partially filling the space between the first and the second electrical conductor. The system further includes at least one first wire attached to a first radio frequency generator and to the first end of the first electrical conductor. The system also includes at least one second wire attached to the electrical ground of the first radio frequency generator to the first end of the second electrical conductor.

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).

A apparatus (100) for roasting coffee beans is disclosed comprising a compartment (110) for holding coffee beans (10); a roasting element (140) for roasting the coffee beans in said compartment; and a processor (130) comprising a control unit (134) for controlling the roasting element. Wherein, the processor (130) is adapted to determine a weight loss rate of the coffee beans, and the control unit (134) is adapted to control the roasting element as a function of the determined weight loss rate. A coffee machine including such an apparatus and a method for roasting coffee beans are also disclosed.

A apparatus (100) for roasting coffee beans is disclosed comprising a compartment (110) for holding coffee beans (10); a roasting element (140) for roasting the coffee beans in said compartment; and a processor (130) comprising a control unit (134) for controlling the roasting element. Wherein, the processor (130) is adapted to determine a weight loss rate of the coffee beans, and the control unit (134) is adapted to control the roasting element as a function of the determined weight loss rate. A coffee machine including such an apparatus and a method for roasting coffee beans are also disclosed.

A coffee roasting apparatus (100) is disclosed that comprises a compartment (110) for holding coffee beans (10); a roasting element (140) for roasting the coffee beans in said compartment; a controller (130) for controlling the roasting element; and a sensor (120) for monitoring a total amount of VOCs (volatile organic compounds) released by said coffee beans during roasting and providing the controller with an indication of said monitored amount. The controller is adapted to receive an indication of the total weight of the coffee beans in the compartment and control the roasting element as a function of the indication of the monitored total amount and the indication of the total weight, said function defining the total VOC release characteristics of said coffee beans during roasting. A coffee brewing apparatus and coffee roasting method are also disclosed.

A coffee roasting apparatus (100) is disclosed that comprises a compartment (110) for holding coffee beans (10); a roasting element (140) for roasting the coffee beans in said compartment; a controller (130) for controlling the roasting element; and a sensor (120) for monitoring a total amount of VOCs (volatile organic compounds) released by said coffee beans during roasting and providing the controller with an indication of said monitored amount. The controller is adapted to receive an indication of the total weight of the coffee beans in the compartment and control the roasting element as a function of the indication of the monitored total amount and the indication of the total weight, said function defining the total VOC release characteristics of said coffee beans during roasting. A coffee brewing apparatus and coffee roasting method are also disclosed.

The invention concerns an apparatus (10) for roasting coffee beans comprising:—a roasting chamber (1) presenting a bottom opening (11),—an air driver (2) configured to drive a flow of air inside the roasting chamber through the bottom opening of said chamber,—an electrical heater (3) positioned below the bottom opening of the chamber configured to heat said flow of air driven to the bottom opening of the roasting chamber, wherein the apparatus comprises a conduit (6) to drive the flow of hot air from the heater (3) to the bottom opening (11) of the roasting chamber, and wherein said conduit (6) comprises a local transversal constriction (61), and wherein at least one temperature probe is positioned at said local transversal constriction (61) of the conduit.

An intelligent separation device has gas explosion, stirring, drying and negative pressure adsorption devices. The gas explosion device receives conveyed peanut materials with red coats to be removed, and the materials are subjected to gas explosion, so that the peanut kernels and the peanut red coats are preliminarily separated. The stirring device shifts the preliminarily separated peanut kernels and peanut red coats into the drying device. The drying device compresses and heating external air, transfers heat through hot air, and heats and dries the preliminarily separated peanut kernels and peanut red coats, so that the peanut red coats and the peanut kernels are fully separated. The negative pressure adsorption device collects the fully separated peanut kernels and red coats with different densities and masses in a negative pressure adsorption mode.

An intelligent separation device has gas explosion, stirring, drying and negative pressure adsorption devices. The gas explosion device receives conveyed peanut materials with red coats to be removed, and the materials are subjected to gas explosion, so that the peanut kernels and the peanut red coats are preliminarily separated. The stirring device shifts the preliminarily separated peanut kernels and peanut red coats into the drying device. The drying device compresses and heating external air, transfers heat through hot air, and heats and dries the preliminarily separated peanut kernels and peanut red coats, so that the peanut red coats and the peanut kernels are fully separated. The negative pressure adsorption device collects the fully separated peanut kernels and red coats with different densities and masses in a negative pressure adsorption mode.

The invention concerns a method for roasting coffee beans with a roasting apparatus (10) said roasting apparatus being positioned in a room and said roasting apparatus comprising: ⋅—a roasting device (1), and ⋅—a smoke treating unit (3) configured to treat the smoke produced in the roasting device (1) and to prevent the dispense of air contaminants in the room.