US3718486A - Method of packaging foodstuffs and a packaging for employing the method - Google Patents

Method of packaging foodstuffs and a packaging for employing the method Download PDF

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Publication number
US3718486A
US3718486A US00072503A US3718486DA US3718486A US 3718486 A US3718486 A US 3718486A US 00072503 A US00072503 A US 00072503A US 3718486D A US3718486D A US 3718486DA US 3718486 A US3718486 A US 3718486A
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US
United States
Prior art keywords
packaging
bags
heat
liquid
foodstuffs
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.)
Expired - Lifetime
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US00072503A
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English (en)
Inventor
J Jensen
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Individual
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Individual
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Publication date
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Publication of US3718486A publication Critical patent/US3718486A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
    • B65D81/2023—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum in a flexible container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/22—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient in moist conditions or immersed in liquids

Definitions

  • ABSTRACT A method and a packaging assembly for packaging foodstuffs which are to be preserved by the application of heat and comprising steps of wrapping the foodstuffs in thin, heat-resistant, gas and liquid-tight bags, evacuating and sealing the bags, depositing one or more sealed bags in receptacles, filling up the receptacle with a heat-transmitting liquid which dampens the movement of the bags within the receptacle and alleviates impact by external forces, and sealing the receptacle, which can then be subjected to heat treatment for the preservation of the food contents.
  • This aim has been accomplished in a manner which, moreover, produces a commodity whose appearance is attractive to the consumer and the fat or juice of which has not, to any appreciable degree, been able to escape into the packaging.
  • the food is wrapped in conventional manner in gas and liquid tight bars of thin heat-resistant foil material, the bags are evacuated and sealed in such a manner as to be gas and liquid tight, and one or more bags are deposited in close relationship in an outer packaging, which is then filled with a liquid that is substantially inert with respect to the foil and packaging material and sealed in such a manner as to be gas and liquid tight.
  • a liquid that is substantially inert with respect to the foil and packaging material and sealed in such a manner as to be gas and liquid tight.
  • the liquid will not come into contact with the food itself, but serves to protect the bags by damping the movements of the bags against each other caused by shaking during transport and alleviates the impact of external forces.
  • the foil of the bags is maintained firmly pressed against the contents so that there will be no room for the escape of fat or juice during the heat treatment or during transport.
  • a leakage in a bag can readily be ascertained because the liquid in the outer packaging will leak into the bag and cause discoloration of the contents so that it will be evident immediately on the opening of the packaging that the article is no longer in a proper condition, and the damaged bag may easily be removed.
  • a still further advantage is that for long distance transport, larger packagings may conveniently be used, for instance cans, which are substantially cheaper per unit of food than greater numbers of small packagings, whereas the cost of the thin foil bags is a minor item.
  • the invention thus provides a packaging that is particularly suited for long distance transport, is extremely economical and offers an effective protection of the contents.
  • the user need only remove the wrapping and take out the food, which can be cooked after a simple rinsing and drying, or the bags may be removed from the outer packaging and stored in refrigerating or freezing cabinets as a well packed cooled or deep-frozen article requiring a minimum of space and which can be sold in small quantities, i.e., in the individual bags, and in a manner resembling that of other articles packed in bags and may thus be made highly attractive to the consumer.
  • Articles preserved in the manner taught by this invention will often be kept in refrigerating or deepfreeze storage for a considerable length of time, for instance during long-time transport, and it will therefore be expedient to fill the packaging with a liquid having a freezing point below zero, preferably below the temperature at which the food-stuffs are to be stored.
  • a liquid having a freezing point below zero preferably below the temperature at which the food-stuffs are to be stored.
  • the liquid used for filling the packaging will be water, but other suitable liquids may be used as well. If water is used, the freezing point may easily be lowered, for instance by the addition of sugar, whereby no damage whatever can be done to the product or the packaging. But also anti-corrosive substances may be added to the water, since they cannot get into contact with the food itself.
  • the extra control referred to above for disclosing the presence of leaky bags may be further improved by using a liquid which on contact with the food will develop a distinct discoloration thereof.
  • the liquid is water one of the coloring media normally used in the food industry may be used, such as for instance erythrosine, which, in meat for instance, will develop a strong bluish red color.
  • the said method has the further advantage that by filling the liquid into the packaging at a temperature of at least 50 C., preferably between 60 and C., a negative pressure will be produced in a quite simple manner in the packaging and the denting of the packaging will immediately disclose whether the negative pressure has been maintained or a leakage has occurred.
  • This control is known in connection with canned goods, but here the negative pressure is obtained in a particularly simple manner associated with the specific method of packaging.
  • FIGURE is a partly sectional view of a container arrangement provided in accordance with the invention.
  • this packaging comprises bags '14 of thin, heat-resistant in the sense that it is resistant to destruction by heat, foil material 10 for receiving the food and an outer packaging 10 in which the filled bags are packed closely together and which is then filled up with a heat-transmitting damping medium consisting of a liquid 18 which is substantially inert with respect to the foil and packaging material.
  • the packaged articles may then be preserved by the application of heat and when finished they will be effectively protected both mechanically and chemically and can be subjected to long and rough transport without being damaged.
  • a method of packaging foodstuffs for shipping comprising inserting the foodstuff into bags of thin impermeable sheet material resistant to destruction by heat of temperatures of up to about 70 C., evacuating and'sealing said bags, packing the bags tightly in an outer container, filling the remaining space of said outer container with a liquid which is substantially inert in relation to the material of the bags and the container and which dampens the movement of the of the foodstuff, the liquid being filled into the outer container at a temperature of at least 50C.
  • a method according to claim 1 comprising storing the arrangement at a relatively low temperature and wherein the liquid which fills the outer container has a freezing point below the temperature at which the foodstuff is stored.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
US00072503A 1969-09-18 1970-09-15 Method of packaging foodstuffs and a packaging for employing the method Expired - Lifetime US3718486A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK498269 1969-09-18

Publications (1)

Publication Number Publication Date
US3718486A true US3718486A (en) 1973-02-27

Family

ID=8138388

Family Applications (1)

Application Number Title Priority Date Filing Date
US00072503A Expired - Lifetime US3718486A (en) 1969-09-18 1970-09-15 Method of packaging foodstuffs and a packaging for employing the method

Country Status (5)

Country Link
US (1) US3718486A (de)
CS (1) CS151046B2 (de)
DE (1) DE2044954C3 (de)
NL (1) NL7013707A (de)
PL (1) PL81010B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001098173A1 (de) * 2000-06-23 2001-12-27 Mars, Inc. Behältnis mit sterilisierten portionspackungen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2044245A (en) * 1934-11-12 1936-06-16 Ross C Irons Packaging foods
US2380134A (en) * 1940-10-22 1945-07-10 Harry F Waters Method of preserving foods in flexible-walled fluid-tight bags
US3567463A (en) * 1969-02-06 1971-03-02 Theodore M Williams Food flavoring packet for containers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2044245A (en) * 1934-11-12 1936-06-16 Ross C Irons Packaging foods
US2380134A (en) * 1940-10-22 1945-07-10 Harry F Waters Method of preserving foods in flexible-walled fluid-tight bags
US3567463A (en) * 1969-02-06 1971-03-02 Theodore M Williams Food flavoring packet for containers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001098173A1 (de) * 2000-06-23 2001-12-27 Mars, Inc. Behältnis mit sterilisierten portionspackungen
US20030168359A1 (en) * 2000-06-23 2003-09-11 Bernd Meyer Container with sterilized portion packages

Also Published As

Publication number Publication date
DE2044954A1 (de) 1971-04-22
CS151046B2 (de) 1973-09-17
PL81010B1 (de) 1975-08-30
DE2044954C3 (de) 1974-05-09
NL7013707A (de) 1971-03-22
DE2044954B2 (de) 1973-10-11

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