Fluidized bed coffee roaster

Details Fluidized bed coffee roaster Fluidized bed coffee roaster

1993-10-12

1995-03-07

Gromada, Denise L.

Drying and gas or vapor contact with solids

Apparatus

With automatic control

34494, 34576, 99286, F26B 2106

Patent

active

053946235

ABSTRACT:
A self controlled, fluidized bed coffee roaster which provides a stream of heated air to a bed of coffee beans, monitors the temperature of the air that has passed through the bean; and when the air temperatures reaches a predetermined set point, a controller terminates the heating, deactivates the heater and injects water into the air stream at a point upstream of the beans to cool the system and quench the roasting process.

REFERENCES:
patent: 3964175 (1976-06-01), Sivetz
patent: 4271603 (1981-06-01), Moore, III
patent: 4326114 (1982-04-01), Gerling et al.
patent: 4484064 (1984-11-01), Murray
patent: 4642906 (1987-02-01), Kaatze et al.
patent: 4698916 (1987-10-01), Farber
patent: 4988590 (1991-01-01), Price et al.
patent: 5185171 (1993-02-01), Bersten
"Engineering Air-Apouted Coffee Bean Beds for Drying/Roasting and Cooling with Color/Flavor Controls", M. Sivetz; AIChE-CoFe, Feb., 1993.
Brochure, Sivetz Coffee Inc., dated Jun. 1992.

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