Foods and beverages: apparatus – Subjecting food to an enclosed modified atmosphere – With sequential heating and cooling
Patent
1985-01-30
1987-10-27
Simone, Timothy F.
Foods and beverages: apparatus
Subjecting food to an enclosed modified atmosphere
With sequential heating and cooling
99477, 99483, 99536, A23N 1200, A23L 300
Patent
active
047021616
ABSTRACT:
An apparatus for blanching and cooling vegetable products comprises a perforated product conveyor belt having an upper belt run which extends and travels through a treatment tunnel defined in a casing of the apparatus. A layer of vegetable product is transported on the upper belt run through successive treatment zones defined in the treatment tunnel. The treatment zones are provided with arrangements of spray nozzles which are located to spray liquid onto the upper belt run and the layer of product thereon. The nozzle arrangement comprises upper nozzle units adapted to spray liquid on the top surface of the product layer, and may also include lower nozzle units adapted to spray liquid onto the underside of the perforated upper belt run. In a blanching zone, the product layer is sprayed with a blanching liquid which is recirculated and maintained at a desired blanching temperature. The blanching zone is followed by a cooling zone in which the product layer is cooled by spraying a cooling liquid thereon. Preferably, the heat absorbed by the cooling liquid is recovered by being used in a product preheating zone ahead of the blanching zone.
REFERENCES:
patent: 2692200 (1954-10-01), Olson
patent: 3982481 (1976-09-01), Console et al.
patent: 4248141 (1981-02-01), Miller
patent: 4255459 (1981-03-01), Glen
patent: 4543263 (1985-09-01), Goldhahn
Simone Timothy F.
Vigil Thomas R.
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