EP0970895A1 - Ensemble de gateau congelé et barquette, et méthode pour décongeler le gateau - Google Patents

Ensemble de gateau congelé et barquette, et méthode pour décongeler le gateau Download PDF

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Publication number
EP0970895A1
EP0970895A1 EP99202198A EP99202198A EP0970895A1 EP 0970895 A1 EP0970895 A1 EP 0970895A1 EP 99202198 A EP99202198 A EP 99202198A EP 99202198 A EP99202198 A EP 99202198A EP 0970895 A1 EP0970895 A1 EP 0970895A1
Authority
EP
European Patent Office
Prior art keywords
cake
frozen cake
frozen
disposable tray
assembly according
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.)
Withdrawn
Application number
EP99202198A
Other languages
German (de)
English (en)
Inventor
Harry Haaije Kleefstra
Louris Kaper
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.)
Sara Lee DE NV
Original Assignee
Sara Lee DE NV
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 Sara Lee DE NV filed Critical Sara Lee DE NV
Publication of EP0970895A1 publication Critical patent/EP0970895A1/fr
Withdrawn legal-status Critical Current

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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
    • B65D81/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3446—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
    • B65D81/3453—Rigid containers, e.g. trays, bottles, boxes, cups
    • 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
    • B65D2581/00—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
    • B65D2581/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3401—Cooking or heating method specially adapted to the contents of the package
    • B65D2581/3402—Cooking or heating method specially adapted to the contents of the package characterised by the type of product to be heated or cooked
    • B65D2581/3405—Cooking bakery products
    • 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
    • B65D2581/00—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
    • B65D2581/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3401—Cooking or heating method specially adapted to the contents of the package
    • B65D2581/3435—Package specially adapted for defrosting the contents by microwave heating
    • 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
    • B65D2581/00—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
    • B65D2581/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—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 for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3486—Dielectric characteristics of microwave reactive packaging
    • B65D2581/3489—Microwave reflector, i.e. microwave shield
    • 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
    • B65D85/36—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for bakery products, e.g. biscuits

Definitions

  • This invention relates to an assembly of a frozen cake and a disposable tray which is at least partly made of aluminum and comprises a bottom and a circumferential rim extending upright with respect to the bottom.
  • the frozen cake herein understood to include pie, tart, flan, and the like; is, in principle, a conventional cake in deep-frozen condition and often comprises a base of baked dough or pastry having thereon a decorated top layer.
  • the top layer may be built up, for instance, from a crème, such as cream cheese or custard, with a decoration of whipped cream and/or fruits.
  • the top layer may comprise, for instance, an egg white mixture with a decoration of vegetables.
  • the disposable tray serves to protect and support the frozen cake and usually fits closely to the underside and the side of the frozen cake.
  • the frozen cake is produced in the disposable tray.
  • the disposable tray is intended for single use and is at least partly composed of aluminum. In this context, this is to be understood to mean that at least a part of the disposable tray is made of aluminum foil and/or is provided with an aluminum coating.
  • An advantage of a frozen cake compared with an ordinary cake, is that its storage life, i.e., the time lapse between the moment when the cake is produced and the moment when the cake should be consumed at the latest, can be considerably longer because of the deep-frozen condition.
  • a disadvantage is that it requires relatively much time to defrost the frozen cake from the deep-frozen condition, typically about -24°C or -18°C, to the desired consumption temperature, preferably between 0°C and room temperature.
  • a frozen cake usually exhibits poor internal heat conduction, so that to make the frozen cake ready for consumption, it must be taken from the disposable tray and be allowed to defrost at room temperature for 2 to 5 hours.
  • this proves to be a major disadvantage, since it is often hard to predict when the cake should be ready for consumption.
  • it is often required that the cake be ready for consumption at short notice for instance when in a restaurant a customer orders a certain cake for prompt consumption or when, at home, one has unexpected visitors.
  • an assembly of a frozen cake and a disposable tray is characterized, according to the invention, in that at least a part of the bottom of the disposable tray is detachable, such that an aluminum ring is left, having an upright rim and an inwardly reaching flange extending along the circumference thereof.
  • the aluminum ring after being inverted, can be arranged at the top of the frozen cake, as a shield, such that the ring can shield the side and the more outward portion of the frozen cake at least partly against microwave radiation during defrosting.
  • the frozen cake can be defrosted in a short time without being damaged and that the temperature distribution in the cake is uniform.
  • What is achieved by enabling the aluminum ring to be formed from the disposable tray is not only that an aluminum ring is always at hand, but also that the aluminum ring is always of the correct size.
  • an aluminum ring in this context should be understood to include a cardboard or plastic carrier on which a ring-shaped aluminum coating is provided.
  • European patent application EP 0 656 301 discloses an assembly of a container filled with a deep-frozen product suitable for consumption.
  • the container is provided with a lid with side rims extending downwards and made of laminated aluminum, which covers upright side walls of the container. In particular, a part of the surface of the lid can be removed.
  • the assembly is adapted to be placed in the microwave oven so as to defrost the product suitable for consumption.
  • the assembly is not provided with a disposable tray of which at least a part of the bottom is detachable, such that an aluminum ring is left, having an upright rim and an inwardly reaching flange extending along the circumference thereof, which aluminum ring is adapted to be arranged at the top of the frozen cake during defrosting of the product.
  • This invention further relates to a disposable tray and to a method for defrosting a frozen cake using a microwave oven.
  • Fig. 1A shows an assembly 1 of a frozen cake 2 and a disposable baking mold 3, made of aluminum foil.
  • the frozen cake 2 comprises a base 4 of cake, to which a top layer 5 of sweet crème with fruits 6 is applied (Fig. 1D).
  • the disposable baking mold 3 comprises a bottom 7 and a circumferential rim 8 extending upright with respect thereto.
  • the bottom 7 further comprises a tear edge 11, enabling a central part 9 to be torn out (Fig. 1B).
  • a layer of cake dough is provided in the disposable baking mold 3.
  • the disposable baking mold 3 is then placed in an oven, so that the layer of cake dough is baked to form a bottom 4.
  • the top layer 5 is applied by spouting the sweet crème onto the bottom 4.
  • the upper side of the top layer 5 is covered with fruits, for instance raspberries 6.
  • the whole is frozen to deep-freeze temperature, for instance to -24°C.
  • the central part 9 is detached from the bottom 7 of the disposable baking mold by tearing off the central part 9 along the tear edge 11, indicated by a dotted line in Fig. 1B, in the direction of the arrow indicated in Fig. 1C.
  • the central part 9 may be provided with a gripping member, not shown in the figure.
  • What is now left of the disposable baking mold 3 is an aluminum ring 12 with an upright rim formed by the circumferential rim 8 and an inwardly reaching flange 14, extending along the circumference of the circumferential rim 8.
  • the frozen cake 2 and the aluminum ring 12 are detached from each other. This can easily be done because of the frozen state of the frozen cake 2.
  • the base of the frozen cake 2 is supported at the center thereof and moved up in the direction of the arrow 15, while the aluminum ring 12 is pulled down (Fig. 1D).
  • the aluminum ring 12 After the aluminum ring 12 is inverted, it is placed in the direction of the arrow 16 at the top of the frozen cake 2, such that the aluminum ring 12 covers the side 17 and the more outward portion 18 of the top 19 of the frozen cake 2.
  • the frozen cake 2 together with the aluminum ring 12, is heated up in a microwave oven.
  • the aluminum ring 12 shields the side 17 and the more outward portion 18 of the top 19 of the frozen cake 2, so that the frozen cake 2 defrosts highly uniformly, while the crème does not melt and the raspberries 6 maintain their structure.
  • Fig. 2 shows a cross section of another embodiment of the assembly according to the invention.
  • the assembly 1 comprises a disposable tray 30 which supports a frozen cheesecake ("creamy lemon cheesecake") 2. Applied to the top layer 5 are blobs of whipped cream 31.
  • the disposable tray 30 comprises an annular part 32 of plastic, for instance polyester, to which an aluminum coating 33 is applied, such that it forms an aluminum ring 12.
  • the part 32 may also be made of cardboard, preferably coated cardboard, which is resistant to heating in an oven during the production of the cake.
  • the disposable tray 30 further comprises a plastic plate 34 whose dimensions substantially correspond to those of the undersurface 35 of the frozen cake 2.
  • the plastic plate 34 and the flange 14 together form the bottom 7.
  • the plastic plate 34 and the flange 14 may be fixedly joined together, for instance using a glued joint, but may also be loosely placed onto each other.
  • the steps to be traversed for defrosting are substantially the same as those in the previous embodiment.
  • a difference is that the aluminum ring 12, i.e., the annular part 32 of plastic with the aluminum coating 33, is to be removed in the direction of the arrows 36 of the cake, while supporting the plastic plate 34.
  • the plastic plate 34 is detached from the bottom 7. The sequence of detaching the bottom part and removing the frozen cake from the disposable tray may therefore be changed round, depending on the embodiment selected.
  • Fig. 3A shows the results of an experiment in which a frozen cheesecake according to Fig. 2 of a weight of 550 g, a diameter of 16 cm and a height of 3 cm was defrosted in a microwave oven for 420 sec.
  • the microwave oven had been set in a defrosting mode of a power of 480 W, i.e., a setting in which the emission of microwave radiation was intermittently interrupted.
  • the frozen cake had been taken from the disposable tray and had been placed on a rotating disk.
  • the temperature of the frozen cake was measured using four thermocouples which had been placed on the top surface of the frozen cake at equally spaced intervals from the center of the frozen cake in radially outward direction.
  • the measuring data of the first thermocouple are represented in graph 40.
  • thermocouples 41 and 42 The measuring data of the second and third thermocouples in radially outward direction are represented in the respective graphs 41 and 42.
  • Fig. 3A clearly shows there arises a major temperature difference between the temperature of the more outward portion of the frozen cake and the temperature of the more inward portion of the frozen cake.
  • the temperature of the outer periphery had run up so high that the structure of the decoration provided on the frozen cake had been undone, i.e., the cream cheese and the whipped cream were molten.
  • Fig. 3B shows the results of an experiment in which the same type of frozen cheesecake as in Fig. 3A was exposed for 270 seconds to a continuous microwave radiation of a power of 360 W.
  • the frozen cake was removed from the disposable tray, at least a part of the bottom of the disposable tray was detached and the remaining aluminum ring was arranged at the top of the frozen cake, such that the ring shielded the side and the more outward portion of the top surface of the frozen cake.
  • the graph clearly shows not only that the frozen cake had already become defrosted completely after about 225 seconds, but also that the temperature difference between the temperature of the more outward portion of the frozen cake and the more inward portion of the frozen cake is considerably smaller.
  • the temperature of the more inward portion of the cake was now even higher than that of the peripheral portion. Moreover, the temperature adjacent the periphery was only about 10 degrees and the structure of the decoration was not damaged, more specifically, the cream cheese and the whipped cream had not melted.
  • the assembly will typically be offered for sale to a consumer.
  • the assembly may be advantageously provided with a set of instructions for performing the above-described procedure, for instance with a sticker, a printing or an insert with pictograms and/or text setting out the procedure to be followed. What is thus achieved is that it is clear to a consumer how the assembly can be rapidly defrosted using the method.
  • the manufacturer when producing the frozen cake, to detach already the detachable part of the bottom of the disposable tray and the aluminum ring may already be applied to the top of the frozen cake. This may be of advantage in particular in catering situations, for instance in the case of small frozen cakes used in meals on airplanes.
  • the invention can also be used advantageously for microwave defrosting other frozen products comprising a disposable tray, such as for instance frozen meat or frozen salads.
  • the invention is not limited to the preferred embodiments discussed here.
  • the shape and the construction of the frozen cake may vary and parts of the disposable tray may be made of cardboard.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Package Specialized In Special Use (AREA)
  • Bakery Products And Manufacturing Methods Therefor (AREA)
EP99202198A 1998-07-06 1999-07-06 Ensemble de gateau congelé et barquette, et méthode pour décongeler le gateau Withdrawn EP0970895A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1009571A NL1009571C2 (nl) 1998-07-06 1998-07-06 Samenstel van een diepvriestaart en een wegwerpschaal, alsmede werkwijze voor het ontdooien van een diepvriestaart.
NL1009571 1998-07-06

Publications (1)

Publication Number Publication Date
EP0970895A1 true EP0970895A1 (fr) 2000-01-12

Family

ID=19767434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99202198A Withdrawn EP0970895A1 (fr) 1998-07-06 1999-07-06 Ensemble de gateau congelé et barquette, et méthode pour décongeler le gateau

Country Status (2)

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EP (1) EP0970895A1 (fr)
NL (1) NL1009571C2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008014377A2 (fr) 2006-07-27 2008-01-31 Graphic Packaging International, Inc. Structure chauffante par micro-ondes
US7514659B2 (en) 2005-01-14 2009-04-07 Graphic Packaging International, Inc. Package for browning and crisping dough-based foods in a microwave oven
US8008609B2 (en) 2006-03-31 2011-08-30 Graphic Packaging International, Inc. Microwavable construct for heating, browning, and crisping rounded food items
US8395100B2 (en) 2008-08-14 2013-03-12 Graphic Packaging International, Inc. Microwave heating construct with elevatable bottom
US8853601B2 (en) 2006-03-31 2014-10-07 Graphic Packaging International, Inc. Microwavable construct for heating, browning, and crisping rounded food items

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11889949B2 (en) 2020-11-25 2024-02-06 Sugar Beets, LLC Decorative holder for foodstuff trays, tins, and pans

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2600566A (en) * 1949-11-23 1952-06-17 Jr Frank Wesley Moffett Method of heating frozen food packages
US4122324A (en) * 1977-01-05 1978-10-24 Teckton, Inc. Shielding device for microwave cooking
GB2112257A (en) * 1981-11-19 1983-07-13 Campbell Soup Co Shield for improved cooking of frozen foods in a microwave oven
US4763790A (en) * 1986-08-30 1988-08-16 Waddingtons Cartons Limited Heat treatable containers
US5288962A (en) * 1992-11-16 1994-02-22 Conagra Frozen Foods, Inc. Microwave cooking enclosure for food items
EP0656301A1 (fr) * 1991-04-30 1995-06-07 Frisco-Findus Ag Emballage alimentaire pour four à micro-ondes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2600566A (en) * 1949-11-23 1952-06-17 Jr Frank Wesley Moffett Method of heating frozen food packages
US4122324A (en) * 1977-01-05 1978-10-24 Teckton, Inc. Shielding device for microwave cooking
GB2112257A (en) * 1981-11-19 1983-07-13 Campbell Soup Co Shield for improved cooking of frozen foods in a microwave oven
US4763790A (en) * 1986-08-30 1988-08-16 Waddingtons Cartons Limited Heat treatable containers
EP0656301A1 (fr) * 1991-04-30 1995-06-07 Frisco-Findus Ag Emballage alimentaire pour four à micro-ondes
US5288962A (en) * 1992-11-16 1994-02-22 Conagra Frozen Foods, Inc. Microwave cooking enclosure for food items

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7514659B2 (en) 2005-01-14 2009-04-07 Graphic Packaging International, Inc. Package for browning and crisping dough-based foods in a microwave oven
US8071924B2 (en) 2005-01-14 2011-12-06 Graphic Packaging International, Inc. Package for browning and crisping dough-based foods in a microwave oven
US8008609B2 (en) 2006-03-31 2011-08-30 Graphic Packaging International, Inc. Microwavable construct for heating, browning, and crisping rounded food items
US8853601B2 (en) 2006-03-31 2014-10-07 Graphic Packaging International, Inc. Microwavable construct for heating, browning, and crisping rounded food items
WO2008014377A2 (fr) 2006-07-27 2008-01-31 Graphic Packaging International, Inc. Structure chauffante par micro-ondes
WO2008014377A3 (fr) * 2006-07-27 2008-05-15 Graphic Packaging Int Inc Structure chauffante par micro-ondes
US8183506B2 (en) 2006-07-27 2012-05-22 Graphic Packaging International, Inc. Microwave heating construct
EP2772452A1 (fr) * 2006-07-27 2014-09-03 Graphic Packaging International, Inc. Construction de chauffage à micro-ondes
US9278795B2 (en) 2006-07-27 2016-03-08 Graphic Packaging International, Inc. Microwave heating construct
US8395100B2 (en) 2008-08-14 2013-03-12 Graphic Packaging International, Inc. Microwave heating construct with elevatable bottom
US8686322B2 (en) 2008-08-14 2014-04-01 Graphic Packaging International, Inc. Microwave heating construct with elevatable bottom

Also Published As

Publication number Publication date
NL1009571C2 (nl) 2000-01-10

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