FR2341277A1 - Microwave heating of foods while immersed in liquids - esp. in water, for equalising the temp., is suitable for sterilising or defrosting - Google Patents

Microwave heating of foods while immersed in liquids - esp. in water, for equalising the temp., is suitable for sterilising or defrosting

Info

Publication number
FR2341277A1
FR2341277A1 FR7704824A FR7704824A FR2341277A1 FR 2341277 A1 FR2341277 A1 FR 2341277A1 FR 7704824 A FR7704824 A FR 7704824A FR 7704824 A FR7704824 A FR 7704824A FR 2341277 A1 FR2341277 A1 FR 2341277A1
Authority
FR
France
Prior art keywords
water
esp
food
immersed
foods
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7704824A
Other languages
French (fr)
Other versions
FR2341277B3 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kreis AG
Original Assignee
Kreis AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kreis AG filed Critical Kreis AG
Publication of FR2341277A1 publication Critical patent/FR2341277A1/en
Application granted granted Critical
Publication of FR2341277B3 publication Critical patent/FR2341277B3/fr
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/36—Freezing; Subsequent thawing; Cooling
    • A23L3/365—Thawing subsequent to freezing
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/005—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating using irradiation or electric treatment
    • A23L3/01—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating using irradiation or electric treatment using microwaves or dielectric heating
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/02—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating materials in packages which are progressively transported, continuously or stepwise, through the apparatus
    • A23L3/04—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating materials in packages which are progressively transported, continuously or stepwise, through the apparatus with packages on endless chain or band conveyors
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/16—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials
    • A23L3/18—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials while they are progressively transported through the apparatus
    • A23L3/185—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials while they are progressively transported through the apparatus in solid state
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • A23L5/10—General methods of cooking foods, e.g. by roasting or frying
    • A23L5/15—General methods of cooking foods, e.g. by roasting or frying using wave energy, irradiation, electrical means or magnetic fields, e.g. oven cooking or roasting using radiant dry heat

Landscapes

  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Packages (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)

Abstract

Foodstuffs in the form of pieces or portions are heated by applying microwave radiation to the portions as they are continuously conveyed. In the region where the microwaves are applied to the food, the food is immersed in a liq. medium, esp. water. Where the microwave treatment is intended for sterilising the food, the water is pref. maintained at 80-90 degrees C; where, however deep-frozen foods are being thawed out, the water is pref. maintained at about 5 degrees C. Where the microwave treatment is for pasteurising packaged foodstuffs, esp. precooked foods the packages are immersed in the water before the application of the microwaves and not removed from it until after the application ceases. The use of a flowable medium, esp. water, around the articles while they are subject to microwave treatment provides a very high degree of temp. equalisation, thus preventing hot spots resulting in overcooking or damage to the food. At the same time, the power loss involved is only is approx. 20%.
FR7704824A 1976-02-19 1977-02-18 Microwave heating of foods while immersed in liquids - esp. in water, for equalising the temp., is suitable for sterilising or defrosting Granted FR2341277A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH201476A CH597740A5 (en) 1976-02-19 1976-02-19

Publications (2)

Publication Number Publication Date
FR2341277A1 true FR2341277A1 (en) 1977-09-16
FR2341277B3 FR2341277B3 (en) 1979-10-19

Family

ID=4223880

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7704824A Granted FR2341277A1 (en) 1976-02-19 1977-02-18 Microwave heating of foods while immersed in liquids - esp. in water, for equalising the temp., is suitable for sterilising or defrosting

Country Status (4)

Country Link
CH (1) CH597740A5 (en)
DE (1) DE2704563A1 (en)
FR (1) FR2341277A1 (en)
SE (1) SE7701719L (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1197151A2 (en) * 2000-10-12 2002-04-17 FRoSTA Aktiengesellschaft Process for herbs treatment with microwaves
WO2016044571A1 (en) * 2014-09-17 2016-03-24 Kraft Foods Group Brands Llc A microwave retort system, a process for heating food products using a microwave retort system, and food products formulated for microwave retort
WO2021236867A1 (en) * 2020-05-20 2021-11-25 Washington State University Solid-state microwave sterilization and pasteurization

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0136453B2 (en) * 1983-08-10 1992-08-26 Snowdrift Corp. N.V. Method and device for the microwave heating of objects
DE3811063A1 (en) * 1988-03-31 1989-10-19 Berstorff Gmbh Masch Hermann DEVICE FOR CONTINUOUSLY HEATING, PASTEURIZING OR STERILIZING FOOD OR THE LIKE

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1197151A2 (en) * 2000-10-12 2002-04-17 FRoSTA Aktiengesellschaft Process for herbs treatment with microwaves
EP1197151A3 (en) * 2000-10-12 2002-09-18 FRoSTA Aktiengesellschaft Process for treatment of herbs by means of microwaves
WO2016044571A1 (en) * 2014-09-17 2016-03-24 Kraft Foods Group Brands Llc A microwave retort system, a process for heating food products using a microwave retort system, and food products formulated for microwave retort
AU2015317664B2 (en) * 2014-09-17 2019-07-25 915 Labs, LLC A microwave retort system, a process for heating food products using a microwave retort system, and food products formulated for microwave retort
WO2021236867A1 (en) * 2020-05-20 2021-11-25 Washington State University Solid-state microwave sterilization and pasteurization

Also Published As

Publication number Publication date
FR2341277B3 (en) 1979-10-19
DE2704563A1 (en) 1977-08-25
SE7701719L (en) 1977-08-20
CH597740A5 (en) 1978-04-14

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Legal Events

Date Code Title Description
ST Notification of lapse