A system for roasting particulate material, such as coffee or cacao beans, grains, malt. The system includes a concentrated solar collector configured for heating a fluid; a heat storage device configured for storing heat of the heated fluid; a particulate material roasting device comprising a treatment compartment configured for receiving the particulate material, and at least one generation unit configured for generating at least one gas and/or steam flow with a controlled temperature, through said treatment compartment. The at least one generation unit is configured for exchanging heat between said at least one gas and/or steam flow and a second flow. A circulation system is configured for generating the second flow by using heat stored in the storage device, and is configured for using directly the heated fluid.

A bean roasting system includes a roasting drum, an agitator, and a door. The roasting drum has an inside surface extending from a back end to a front end. The agitator has blades mounted to an axial shaft. The axial shaft has an anterior end portion. The door is mounted rotationally relative to the roasting drum and includes a glass plate and a bearing assembly. The glass plate provides visual access to contents inside the roasting drum when the door is closed. The bearing assembly includes an outer housing and an inner bearing. The outer housing is mounted to the glass plate. The inner bearing defines a receiving hole that receives and supports the anterior end portion of the axial shaft when the door closed.

A bean roasting system includes a roasting drum, an agitator, and a door. The roasting drum has an inside surface extending from a back end to a front end. The agitator has blades mounted to an axial shaft. The axial shaft has an anterior end portion. The door is mounted rotationally relative to the roasting drum and includes a glass plate and a bearing assembly. The glass plate provides visual access to contents inside the roasting drum when the door is closed. The bearing assembly includes an outer housing and an inner bearing. The outer housing is mounted to the glass plate. The inner bearing defines a receiving hole that receives and supports the anterior end portion of the axial shaft when the door closed.

The present disclosure relates to a roasting apparatus and a method of controlling the roasting apparatus, and more particularly, to a roasting apparatus for roasting objects while stirring the objects in a roasting chamber, and a method of controlling the roasting apparatus. An roasting apparatus for heating objects according to the present disclosure includes a roasting chamber part which includes: a cylindrical roasting chamber that extends in a vertical direction and has an internal space in which the objects are stirred; and a rotary stirring part that rotates to stir the objects received in the roasting chamber and rotates about a stirring axis defined in the vertical direction. The roasting apparatus further includes heat source parts which supply heat to the roasting chamber part.

The present disclosure relates to a roasting apparatus and a method of controlling the roasting apparatus, and more particularly, to a roasting apparatus for roasting objects while stirring the objects in a roasting chamber, and a method of controlling the roasting apparatus. An roasting apparatus for heating objects according to the present disclosure includes a roasting chamber part which includes: a cylindrical roasting chamber that extends in a vertical direction and has an internal space in which the objects are stirred; and a rotary stirring part that rotates to stir the objects received in the roasting chamber and rotates about a stirring axis defined in the vertical direction. The roasting apparatus further includes heat source parts which supply heat to the roasting chamber part.

A substance processing system includes a pressurizer configured to pressurize air and a processing chamber configured to process a substance. The system also includes a heat exchanger coupled between the pressurizer and the processing chamber. A nozzle is coupled to the processing chamber such that output from the nozzle comprises a substantially even pressure distribution.

The invention relates to an apparatus (1) for drying and/or roasting beans for foodstuff, such as cocoa beans, or parts of beans, such as cocoa nibs, comprising a frame, a drum (2) for receiving the beans or parts of beans rotatably mounted in the frame and at least partially closed at one end (3) and open at the other (4), a shell (5) enveloping the drum (2), a door (7) for closing the open end (4) of the drum (2), a heater (19) for heating the drum (2), and a fan and a valve (26) for maintaining an underpressure in the space (20) between the drum (2) and the shell (5). A seal (30) is located in the clearance between the drum (2) and the shell (5).

A coffee roasting apparatus is disclosed comprising a compartment for holding coffee beans, a heating arrangement for heating the coffee beans in the compartment during a roasting process of the coffee beans, a volatile organic compound sensor for determining a total concentration of volatile organic compounds residing in the compartment, and a controller for controlling the heating arrangement. The controller is adapted to determine whether a rate of change in the total concentration of volatile organic compounds exceeds a predefined threshold and control the heating arrangement based on a determination that the rate of change in the total concentration of volatile organic compounds exceeds the predefined threshold. A coffee brewing apparatus including such a coffee roasting apparatus and a coffee roasting method are also disclosed.

A bean roasting apparatus with a stirring barrel body, a receiving structure and an image capturing assembly is provided. The stirring barrel body has an opening. The receiving structure has a bean-through opening and an observation opening. The image capturing assembly has at least one image capturing device and a reflective surface which is disposed in the capturing scope of the at least one image capturing device and is tilted facing the at least one image capturing device and the observation opening. Therefore, the at least one image capturing device can capture an image inside the receiving structure through the reflective surface and the observation opening. Another bean roasting apparatus with an image capturing assembly is provided, wherein at least one image capturing device of the image capturing assembly can capture an image inside the receiving structure through the observation opening directly.

A coffee roasting apparatus is disclosed that comprises a compartment for holding coffee beans, a heating arrangement for directing a heated air flow through the compartment during a roasting process of the coffee beans, a particulate matter sensor for detecting a peak amount of particulate matter released by the coffee beans, a timer for determining an amount of time lapsed from a start of the roasting process until the detection of the peak amount, and a controller arranged to control the heating arrangement. The controller is adapted to select a defined control time as a function of the lapsed amount of time and apply the defined control time to the heating arrangement after first cracking of the coffee beans to complete the roasting process. A coffee brewing apparatus including such a coffee roasting apparatus and a method of controlling such a coffee roasting apparatus are also disclosed.