Coffee roasting system

Details Coffee roasting system Coffee roasting system

1974-11-11

1976-06-22

Feldman, Peter

Drying and gas or vapor contact with solids

Apparatus

With apparatus using centrifugal force

34 10, 432 58, 426467, F26B 1710

Patent

active

039641759

ABSTRACT:
A coffee bean roasting system is disclosed wherein coffee beans in a box-like chamber are levitated as a dense, uniformly recirculating mass by an upwardly directed airstream. The air is heated to a temperature not in excess of 530.degree.F., and the heat is transferred to the beans primarily by convection and secondarily by conduction from bean to bean. Heat transfer continues until after a thermally induced pyrolitic reaction has occurred within the bean mass and the desired roast has resulted whereupon the roasted beans are cooled. The system may employ batch type or continuous roast apparatus.

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patent: 2509765 (1950-05-01), Forse
patent: 2574848 (1951-11-01), Schroeder
patent: 2969038 (1961-01-01), Neumann
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patent: 3186102 (1965-06-01), Brociner et al.
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patent: 3480265 (1969-11-01), Deve
patent: 3546787 (1970-12-01), Horner et al.
patent: 3585732 (1971-06-01), Itahashi
patent: 3609874 (1971-10-01), Nara
patent: 3615668 (1971-10-01), Smith, Jr.

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