Method of dehydrating foods

A method for dehydrating foods by the steps of subdividing the starting food to a suitable size, as by slicing or chopping; blanching the subdivided product in a blanching solution such as brine, acid, sugars; placing the material in a sealed vessel, and while pressurizing the vessel to an elevated...

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Hauptverfasser: KAWAMURA, TOSHIMITSU
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method for dehydrating foods by the steps of subdividing the starting food to a suitable size, as by slicing or chopping; blanching the subdivided product in a blanching solution such as brine, acid, sugars; placing the material in a sealed vessel, and while pressurizing the vessel to an elevated pressure of about 1-4 atmospheres above normal, contacting the food pieces with a solution of a sugar adapted to extract moisture therefrom by osmotic action; after sufficient moisture is removed osmotically, rapidly decompressing the vessel to significantly below atmospheric pressure, contacting the decompressed food pieces with a heated liquid oil until the moisture content thereof is not more than about 3% but before the pieces undergo superficial degradation in flavor and color, removing such oil from the pieces to reduce their oil content to about 5-25% by weight, preferably by centrifugation, and cooling the same to room temperature.