Process for making rehydratable food pieces using impingement drying

A method for making dehydrated, shelf-stable, puffed, rapidly-rehydratable, vegetable or fruit food pieces by puffing and drying moist food pieces (e.g. potato shreds) by conveying them in a bed through an impingement drying zone maintained at substantially atmospheric pressure in which streams of p...

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Bibliographische Detailangaben
Hauptverfasser:	EVERSOLL GARY R, HERRICK MARLIN G, COOPER KERN L, ANDERSON J. LAYNE, CHING GORDON, LUEDEMAN RONALD L
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL RIPENING OF FRUIT OR VEGETABLES FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HUMAN NECESSITIES PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT,VEGETABLES, EDIBLE SEEDS SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY ASINGLE OTHER SUBCLASS THE PRESERVED, RIPENED, OR CANNED PRODUCTS THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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Beschreibung
Zusammenfassung:	A method for making dehydrated, shelf-stable, puffed, rapidly-rehydratable, vegetable or fruit food pieces by puffing and drying moist food pieces (e.g. potato shreds) by conveying them in a bed through an impingement drying zone maintained at substantially atmospheric pressure in which streams of pressurized heated gas in a plurality of spaced fluid conduits exit from the conduits in spaced impinging streams at a velocity in excess of about 1,000 feet per minute are directed against the moist food pieces to cause the pieces to be suspended in a fluidized bed. In one case, the heated gas causes the moisture content of the moist food pieces to be reduced rapidly to puff them into porous pieces which exit the impingement drying zone having a moisture content of at least about 4% with a texture and appearance suitable for use as a rehydratable food piece.