Food or edible material: processes – compositions – and products – Processes – Treatment with aqueous material – e.g. – hydration – etc.
Patent
1993-06-22
1994-06-07
Yeung, George
Food or edible material: processes, compositions, and products
Processes
Treatment with aqueous material, e.g., hydration, etc.
426407, 426511, 426523, A23L 100
Patent
active
053187920
ABSTRACT:
A cooking and holding food preparation unit is disclosed having one or more food receiving compartments each including a door and a gasket for hermetically sealing the compartment when the door is closed. An open-topped tray for holding water is located near the bottom of the compartment and has therebeneath electrical heating strips for heating water in the tray. A thermostat is coupled to the tray and to the heating strips for maintaining the temperature of the tray at an operator selected temperature typically well below the temperature at which water boils under standard conditions. A vacuum pump selectively reduces the air pressure within the compartment while a vacuum release valve selectively couples the compartment to the exterior atmosphere. There is a timer for measuring elapsed time after cooking is begun which functions to open the vacuum release valve upon the expiration of an operator determined time interval. Thus, ambient pressure surrounding the food product may be reduced and low temperature steam allowed to surround the food product for a predetermined period of time to cook the food product. When cooking is completed, the ambient pressure may be restored to atmospheric pressure and the food product held at a preferred temperature without further cooking.
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