EP2982614A1 - Dispositif pour la cuisson par micro-ondes - Google Patents

Dispositif pour la cuisson par micro-ondes Download PDF

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Publication number
EP2982614A1
EP2982614A1 EP14179718.3A EP14179718A EP2982614A1 EP 2982614 A1 EP2982614 A1 EP 2982614A1 EP 14179718 A EP14179718 A EP 14179718A EP 2982614 A1 EP2982614 A1 EP 2982614A1
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EP
European Patent Office
Prior art keywords
cooking
cooking device
slag
inorganic binder
range
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
EP14179718.3A
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German (de)
English (en)
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EP2982614B1 (fr
Inventor
Francesco Mascia
Davide Frigerio
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MASCIA, FRANCESCO
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MICROENERGY Srl
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Priority to EP14179718.3A priority Critical patent/EP2982614B1/fr
Priority to PCT/IB2015/055884 priority patent/WO2016020827A2/fr
Publication of EP2982614A1 publication Critical patent/EP2982614A1/fr
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    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/6408—Supports or covers specially adapted for use in microwave heating apparatus
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/647—Aspects related to microwave heating combined with other heating techniques
    • H05B6/6491—Aspects related to microwave heating combined with other heating techniques combined with the use of susceptors
    • H05B6/6494—Aspects related to microwave heating combined with other heating techniques combined with the use of susceptors for cooking
    • 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
    • B65D2581/3439—Means for affecting the heating or cooking properties
    • B65D2581/344—Geometry or shape factors influencing the microwave heating properties
    • B65D2581/3443—Shape or size of microwave reactive particles in a coating or ink
    • 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
    • B65D2581/3463—Means for applying microwave reactive material to the package
    • B65D2581/3464—Microwave reactive material applied by ink printing
    • 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
    • B65D2581/3471—Microwave reactive substances present in the packaging material
    • B65D2581/3479—Other metallic compounds, e.g. silver, gold, copper, nickel

Definitions

  • the present invention relates to a device for cooking food in a microwave apparatus, i.e. in an apparatus suitable to subject a food to microwave radiations.
  • a "susceptor” is a material used for its ability to absorb electromagnetic energy and convert it into heat. This energy is typically radiofrequency or microwave radiation used in industrial heating processes and in microwave cooking. The name is derived from susceptance, an electrical property of materials that measures their tendency to convert electromagnetic energy to heat.
  • susceptor materials contain compounds that raise their temperature when subjected to microwaves. According to the use of the susceptor material and the temperature to be reached, the susceptor compounds are dispersed in or bound to different organic or inorganic binders.
  • typical susceptors are provided in the form of sheets and polyester films (PET) metallized with aluminum deposited in thin layers. These sheets are normally used in food packaging, i.e. coupled with cardboard or paper, and are placed in contact with food to give it the coloring and cooking needed.
  • PET polyester films
  • the susceptors of this type are not capable of withstanding repeated cycles of heating, and the packaging is thrown away after use.
  • An additional problem is that the film in PET can release oligomers in cooked food, as reported in Begley et al., Migration into food of polyethylene terephthalate (PET) cyclic oligomers from PET microwave susceptor packaging Food Add it Contam. 1990 Nov-Dec;7(6):797-803 .
  • the so-called cooking “dishes” in which the active susceptor compound, which reacts to microwaves, is dispersed in an inorganic binder and is applied to the upper layer of a support in dish shape, which is also generally inorganic are also known.
  • a problem with these dishes is the fact that the susceptor compounds are not normally suitable for food contact.
  • a layer of susceptor material e.g. graphite and sodium silicate
  • a layer of inert polymer material is applied such as Teflon, making the surface of the dish suitable for food contact.
  • U.S. patent No. US-4956533 relates to ceramic compositions usable in disposable packaging for precooked foods to be heated in microwave ovens.
  • alumina (Al 2 O 3 ), sodium metasilicate, kaolin, talc or similar ceramic materials are used in the hydrated form, alone or in combination with each other.
  • Such materials are used along with a variety of binders, ranging from PVC to gypsum, which are mixed in a wet state, and then dried to a water content in the range between 2.5% and 10%.
  • the disadvantages of this embodiment are due to the fact that heating is essentially based on the presence of water in the mixture of absorber compounds and the fact that the materials are not able to withstand prolonged or repeated cycles of heating.
  • U.S. patent No. US-5183787 relates to a ceramic composition usable as a susceptor for microwave heating.
  • the ceramic composites are selected from vermiculite, bentonite, hectorite and zeolites, both in their original and amphoteric form.
  • the compounds are previously activated by treatment with acids or bases in order to chemically modify the ceramic structure and add - OH groups.
  • the activated materials are then mixed with a binder according to standard treatment technology of raw ceramics.
  • the disadvantages of this solution are due to the fact that heating is mainly based on the presence of water in the mixture and the fact that the materials are not able to withstand repeated or prolonged heating cycles.
  • WO97/24295 describes a crisping dish that has a sodium silicate foam backing layer (or another alkaline earth silicate), anhydrous, i.e. a material transparent to microwaves, which has a non-foam smooth side on which is laid a layer of anhydrous silicate in which susceptor materials are incorporated, in particular graphite; above the active layer, containing susceptors, is applied a layer of high temperature - resistant polymer, in particular Teflon ®, which allows contact with food.
  • a sodium silicate foam backing layer or another alkaline earth silicate
  • anhydrous i.e. a material transparent to microwaves, which has a non-foam smooth side on which is laid a layer of anhydrous silicate in which susceptor materials are incorporated, in particular graphite
  • a layer of high temperature - resistant polymer in particular Teflon ®, which allows contact with food.
  • Crisp plates are also known, comprising a bottom support made of silicon rubber filled with a susceptor compound, e.g. ferrite, and an aluminum plate coated with Teflon ® located above the silicone support.
  • a susceptor compound e.g. ferrite
  • Teflon ® located above the silicone support.
  • only the bottom, silicone, region has susceptor properties, therefore, when food is cooked into said plates, it is crisped only on its bottom surface.
  • each heating cycle results in heating of the silicone rubber and in a progressive deterioration of the silicone rubber.
  • WO2011/095883 discloses a composition for susceptor materials based on iron silicate (copper slag) and comprising an organic or inorganic binder, that is suitable for the production of heating elements of various kinds and various shapes, such as, for example, heat exchangers or coatings thereof, containers for heating or cooking foods such as pots pans and bowls, plates for cooking food and/or heating for the cooking units, tiles and hot-plates for ovens, heating elements of cylindrical shape similar to resistors, heating elements installed in boilers to produce sanitary hot water and/or heating hot water, fan coil units for heating air and the like.
  • WO'883 discloses a preferred composition that comprises a percentage of iron silicate ranging between 30 wt% and 85%, preferably between 40 and 70 wt%.
  • the aim of the present invention is to solve the problems of the known prior art providing a device for microwave cooking comprising an inorganic binder and copper slag, that is reliable and safe in every cooking conditions and that provides excellent browning and heating of the food.
  • a further aim of the invention is to provide a cooking device that can combine the advantages of microwave cooking with the advantages of traditional oven cooking.
  • Another aim of the present invention is to provide a process for producing a device as mentioned above.
  • the cooking device of the invention comprises 10% to 45% by weight of copper slag and the porosity of the material of the cooking device (after the device has been subjected to a firing step) is in the range of 1% to 15% of water absorption, when measured according to UNI EN ISO 10545-3:2000.
  • a cooking device having the above mentioned structural features effectively avoid the risk of cracking or breaking during the cooking of food, further providing a crisping and browning effect that cannot be obtained with the known cooking devices.
  • the required porosity can be obtained by controlling the temperature of firing of the shaped device; suitable firing temperatures are below 1180°C, preferably within the range of 950°C to 1160°C, more preferably from 1100°C to 1140°C, most preferably about 1130-1135°C.
  • the skilled person can easily determine the correct firing temperature according to the material used for the device. It is believed that at high temperatures, i.e. above 1160-1180°C, the slag, i.e. the "iron silicate", may jeopardize the solidity of the device's structure, thus increasing the possibility of damages during the use of the cooking device.
  • an object of the present invention is a device for microwave cooking, such as, for example, a slab, a pot or a pan, including lids, comprising an inorganic binder and a copper slag in a weight percentage, having the above mentioned porosity, measured as percentage of water absorption according to UNI EN ISO 10545-3:2000.
  • a further object of the present invention is a process for producing a cooking device as mentioned above comprising a step of firing that is carried out at a temperature useful to provide the desired porosity.
  • a copper slag is mixed with an inorganic binder, shaped into a desired cooking device and fired, wherein the amount of copper slag mixed with said inorganic binder is in the range of 10% to 45% by weight and said shaped device is fired at a temperature below 1180 °C to provide a porosity according to claim 1.
  • the cooking device of the present invention is further characterized by a specific range of porosity which is, according to UNI EN ISO 10545-3:2000, as stated above, from 1% to 15%, preferably from 2% to 12% and more preferably from 2% to 6% of water absorption. Porosity depends also on the material used as inorganic binder.
  • the device of the present invention comprises an inorganic binder.
  • Inorganic binders suitable for the invention are known in the art. Said inorganic binders can be selected from high plasticity material for gres, namely for porcelain gres stoneware, terracotta, semi-refractory materials, refractory materials with low fusion point, atomized ceramic, clay, kaolin, feldspar and in general from all inorganic mixtures suitable to prepare pottery, earthenware, stoneware and ceramics and similar products.
  • a preferred material is the one used for porcelain gres.
  • "Porcelain gres” is intended as the material that is called in Italian “gres porcellanato”. According to the known art, this material is usually fired at 1200-1400 C° until it reaches a non-porous vitrification and a complete water-proofing state; contrary to this, the present invention requires that the device is porous and that the firing temperature is less than 1180 C°, preferably 1160 C° or lower.
  • a food container such as, for example, a plate, a serving plate, a dish, a bowl or dishware, that comprises an inorganic binder and copper slag, characterized in that the amount of said slag is in the range of 3 to 10% by weight of the device, 10% being preferably excluded.
  • the present invention relates to a cooking device for microwave cooking, comprising copper slag.
  • the invention refers to a cooking device for microwave cooking, comprising an inorganic binder and copper slag, characterized in that said device comprises 10% to 45% by weight of copper slag and the porosity of said material is in the range of 1% to 15% of water absorption, when measured according to UNI EN ISO 10545-3:2000.
  • the cited percent amounts of slag refer to the initial dry composition made of inorganic binder and slag (iron silicate) before the addition of water to obtain a plastic dough and also to the final, dry, cooking device after it has undergone the firing step; in the latter case, the percent by weight is calculated on the total weight of the device, excluding any metal lining part that may be present, as better explained in the following description.
  • a cooking device comprises an amount of copper slag ranging from 15% to 35% by weight, preferably 20% to 30% by weight and more preferably 24% to 26% by weight.
  • the cooking device of the present invention is suitable for microwave cooking as it comprises a susceptor compound, i.e. copper slag (also known as “iron silicate”), that greatly increases its temperature when exposed to electromagnetic fields, or electromagnetic waves, in particular microwaves (i.e. electromagnetic waves from 300 MHz to 300 GHz).
  • a susceptor compound i.e. copper slag (also known as “iron silicate"
  • iron silicate also known as "iron silicate”
  • the term "copper slag” refers to the inorganic compounds of iron silicate and to the inorganic compounds containing iron silicate; in particular it refers to the material that is known as a synthetic granulated slag resulting from the refining of ferrous metals and of non ferrous metals, in particular as a byproduct of copper metallurgy.
  • the aforesaid slag is normally referred to as “iron silicate” and is used as such, without any special preventive refining. Obtained by cooling the molten slag in water, the "iron silicate” is a solid of a shiny and glassy black color.
  • the cooking device of the present invention is further characterized by a specific range of porosity which is, according to UNI EN ISO 10545-3:2000, as stated above, from 1% to 15%, preferably from 2% to 12% and more preferably from 2% to 6% of water absorption. Porosity depends also on the material used as inorganic binder.
  • Said value of porosity in combination with an adequate amount of copper slag selected from the claimed ranges, provide a cooking device the is able to effectively cook and crisp food, while avoiding the risk of breaking of the cooking device when exposed to microwaves.
  • the device of the present invention comprises an inorganic binder.
  • Inorganic binders suitable for the invention are known in the art. Said inorganic binders can be selected from high plasticity material for gres, namely for porcelain gres (gres porcellanato) stoneware, terracotta, semi-refractory materials, refractory materials with low fusion point, atomized ceramic, clay, kaolin, feldspar and in general from all inorganic mixtures suitable to prepare pottery, earthenware, stoneware and ceramics and similar products.
  • a preferred material is the one used for porcelain gres.
  • "Porcelain gres” is intended as the material that is called in Italian “gres porcellanato”. According to the known art, this material is usually fired at 1200-1400 C° until it reaches a non-porous vitrification and a complete water-proofing state; contrary to this, the present invention requires that the device is porous and that the firing temperature is less than 1180 C°, preferably lower than 1160 C° and about 1130-1140 C.
  • a cooking device comprises copper slag as susceptor compound.
  • the granulometry of said copper slag is preferably less than 125 ⁇ m, more preferably ranging from 50 ⁇ m and 70 ⁇ m.
  • a conductive material such as a metal
  • an insulating material as for example ceramic
  • Electromagnetic radiation therefore, depending on the type and condition of the material may be transmitted, reflected or absorbed.
  • a cooking device comprises an inorganic binder that is at least in part transparent to radiation, i.e. transparent to microwaves.
  • a cooking device could comprise a metal layer located on the inner side of said device, including lateral walls, when present. Metals do not absorb microwave energy, they simply reflect the microwaves energy without heating up.
  • the cooking device of the present invention when exposed to microwaves, it increases its temperature, heating up the metal layer which cooks food providing a browning and crisping effect that could not be obtained by means of the previously known methods of microwave cooking.
  • a cooking device according to the present invention preferably comprises a coating layer.
  • a coating layer 3 can be applied directly on the surface 1 of the cooking device, before or after it has been fired.
  • a device according to the invention can comprise lateral walls.
  • a part of microwaves is transmitted to the food contained in the device through the side walls, depending on the permeability of the device to the microwaves.
  • the desired permeability to microwaves can be obtained by balancing the amount of slag in the device.
  • a metal layer 2 is applied on the internal surface 1 of the cooking device; in this particular embodiment, a coating layer is not required, as the metal layer is suitable to contact food.
  • a metal layer 2 as per fig. 1-B , and over said metal layer 2 a further coating layer 3.
  • Said coating layer can be, for example, a ceramic enamel coating or a sol/gel enamel coating.
  • Said coatings may be applied by immersion coating or spray coating.
  • a device according to the invention can comprise lateral walls and metal layer located on the inner side of said device, including lateral walls.
  • metals do not absorb microwave energy, but they simply reflect the microwaves energy without heating up, microwaves can reach directly the food in the device from above and cook it by their standard action.
  • the device according to the present invention increases its temperature, heating up the inner metal layer which cooks food providing a browning and crisping effect, similar to traditional cooking, thus providing a combined effect of cooking, with the advantages of microwave cooking and also with the advantages of traditional cooking.
  • the thickness of the final device may vary depending on the kind of device, the shape of the device, the nature of the metal and coating layer, and the method to apply them.
  • plates according to the present invention can have a thickness ranging from 5 mm to 12 mm, preferably from 7 mm to 10 mm.
  • the cooking device includes a base part, where the food is placed, and a lid part, having the same, or different, composition and features of the base part, suitable to close the food into said device.
  • the percent amount of slag in said lid part is different from the percent amount of slag in said base part.
  • the amount of slag in the lid is balanced to provide a desired permeability to microwaves: by reducing the amount of slag in the lid, optionally by having a lid with no slag at all, microwaves can reach the food in the device and cook it by their standard action.
  • the base part of the device that contains slag and optionally also a metal layer, will provide a different cooking effect, similar to traditional cooking, thanks to the heat developed by the device containing the slag.
  • a process for producing a cooking device as mentioned above wherein a copper slag is mixed with an inorganic binder, shaped into a desired cooking device and fired.
  • said process is characterized in that the amount of copper slag mixed with said inorganic binder, is in the range of 10% to 45% by weight and said shaped device is fired at a temperature below 1180°C to provide a porosity in the range of 1% to 15% of water absorption, when measured according to UNI EN ISO 10545-3:2000.
  • said shaped device is fired at a temperature ranging from to 950°C to 1160°C, preferably from 1100°C to 1140°C, most preferably about 1130 to 1140°C in a preferred embodiment, the firing temperature is about 1135°C.
  • the desired porosity, and therefore resistance to breaking is obtained.
  • the temperature also depends on the binder material; for terracotta the preferred firing temperature is about 950-1050 C°, for semi-refractory materials the preferred temperature is 1000-1100 C° and for refractory materials at low m.p. the preferred temperature is maximum 1150C°.
  • the preferred temperature is 1130-1140 C°.
  • "Porcelain gres” is intended as the material that is called in Italian “gres porcellanato”.
  • a process for producing a cooking device according to the present invention comprises the following steps:
  • the present process can further comprise a step (e.) of enameling, when a coating layer is desired.
  • the enameling of the shaped devices can be performed before the step (d.) of firing.
  • enamel is applied directly on the dried shaped device; subsequently, the enameled device is fired.
  • the enameling of the devices of the present invention can be performed by immersion or by spray application. When the enameling step is carried out by immersion, the shaped devices are passed in an aqueous bath of enamel in order to obtain an homogeneous enamel coating.
  • an amount of copper slag ranging from 10% to 45% by weight is dry mixed with an inorganic binder. Water is then added to the mix in order to obtain a plastic dough, that is subsequently drawn in pieces, i.e. breads, suitable to be pressed.
  • Drying of the shaped device can be performed at room temperature for 24-48 hours, or in a stove at a temperature ranging from 70°C to 80°C for 12 hours.
  • the firing step (d.) is preferably performed at a temperature below 1160, preferably ranging from 1130°C to 1140°C for porcelain gres (gres porcellanato), preferably at a temperature of 1135°C, for 24 hours.
  • a process for producing a cooking device according to the present invention comprises the following phases:
  • a material for porcelain gres (gres porcellanato) has porosity in the range 2 to 6% and it is fired at a temperature of 1130-1140C.
  • a food container that comprises an inorganic binder and copper slag.
  • a food container according to the present invention is characterized in that the amount of said slag is in the range of 3% to 10% by weight, 10% being preferably excluded.
  • This amount of slag is sufficient to provide food containers that will be heated by the microwaves to a lower temperature that the cooking temperatures previously disclosed.
  • the food container heats the food to keep it warm: it is thus suitable for food serving plates, trays, casseroles or food serving devices in general.
  • the present food container comprises an inorganic binder that can be selected from terracotta, semi-refractory materials, refractory materials with low fusion point, atomized ceramic, clay kaolin, feldspar and inorganic mixtures suitable to prepare pottery, earthenware, stoneware and ceramics.
  • a preferred material is high plasticity powdered material for porcelain gres stoneware. "Porcelain gres” is intended as the material that is called in Italian "gres porcellanato"
  • a food container according to the present invention is selected from plates, serving plates, dishes, bowls and dishware. Additional features of the present invention will become more apparent by the following experimental examples.
  • Example 1 Meat cooking.
  • a 100g beef meat hamburger was cooked in a microwave oven using a cooking device according to the invention.
  • a circular container comprising 35% copper slag according to the invention was used as cooking device.
  • the hamburger was cooked at "Jet power" (700-800W), for 1 minute for each side of the hamburger.
  • a frozen croissant was baked in a microwave oven, by means of a ceramic container according to the present invention.
  • the device according to the invention was preheated at 900W power for 4 minutes, reaching the temperature of 180°C.
  • a frozen croissant was put into the preheated device, and was cooked with a cooking cycle composed by a first microwave phase and a second microwave plus grill phase.
  • Baking the frozen croissant by means of a device according to the invention provided good results in aspect and taste of the croissant, in a short time.
  • the lower part of croissant quickly browns thanks to the contact with the device's hot surface, while the inner part shows a good growth exfoliation of the dough, thanks to the progressive heat release from the device.
  • the dish according to the present invention is a little slower (3 minutes slower) to reach 150°C, as the ceramic has higher thermal capacity than metal, but can reach higher temperatures, i.e. up to 250°C, than the crisp plate, that has a maximum temperature of 210°C, with a better heating homogeneity in the invention plate.
  • the dish according to the invention can heat up also in its lateral part, while the lateral part of the crisp plate remains cooler.
  • Comparative test were carried out, comparing a cooking device, manufactured and glazed according to the above description, with a normal microwaveable ceramic dish.
  • the surface of the container according to the invention reached a temperature of 150°C-170°C, while the normal dish reached a maximum temperature of 95°C, thus indicating that, at the same operating power, a device according to the invention has a higher capability to heat up the food in respect to a normal microwaveable ceramic dish.
  • the device of the present invention strongly reduces the cooking time when compared to a convection electric oven; in this case, 15 minutes instead a total time of 50 minutes, anyway obtaining very similar or better results concerning appearance and taste of the cooked food.
  • a cooking device combines the advantages of the microwave cooking, such as, for example, short times for cooking and easy handling of the microwave oven, with the advantages of the traditional convection oven cooking, such as the browning and crisping effect.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Cookers (AREA)
EP14179718.3A 2014-08-04 2014-08-04 Dispositif pour la cuisson par micro-ondes Not-in-force EP2982614B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP14179718.3A EP2982614B1 (fr) 2014-08-04 2014-08-04 Dispositif pour la cuisson par micro-ondes
PCT/IB2015/055884 WO2016020827A2 (fr) 2014-08-04 2015-08-03 Dispositif de cuisson micro-ondes

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018063130A3 (fr) * 2016-09-02 2018-06-14 Arçeli̇k Anoni̇m Şi̇rketi̇ Procédé de préchauffage d'une plaque de cuisson pour des fours combinés
CN109414136A (zh) * 2016-04-25 2019-03-01 佩利科技有限公司 使用陶瓷加热元件的加热炊具及其制造方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4865921A (en) * 1987-03-10 1989-09-12 James Riker Corporation Of Virginia Microwave interactive laminate
US4956533A (en) 1987-06-01 1990-09-11 General Mills, Inc. Solid state ceramic microwave heating susceptor compositions
US4970358A (en) * 1989-12-22 1990-11-13 Golden Valley Microwave Foods Inc. Microwave susceptor with attenuator for heat control
US4972058A (en) * 1989-12-07 1990-11-20 E. I. Du Pont De Nemours And Company Surface heating food wrap with variable microwave transmission
US5183787A (en) 1987-09-10 1993-02-02 General Mills, Inc. Amphoteric ceramic microwave heating susceptor compositions with metal salt moderators
US5349168A (en) * 1990-06-27 1994-09-20 Zeneca Inc. Microwaveable packaging composition
WO1997024295A1 (fr) 1995-12-29 1997-07-10 The Procter & Gamble Company Procede de fabrication d'un suscepteur ameliore constitue d'un substrat de silicate expanse dielectrique a revetement activable par les micro-ondes
KR20030025720A (ko) * 2001-09-20 2003-03-29 김연숙 폐기 동슬래그를 이용한 축열재 제조
WO2011095883A2 (fr) 2010-02-05 2011-08-11 Francesco Mascia Composés et compositions pour matériaux suscepteurs

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4865921A (en) * 1987-03-10 1989-09-12 James Riker Corporation Of Virginia Microwave interactive laminate
US4956533A (en) 1987-06-01 1990-09-11 General Mills, Inc. Solid state ceramic microwave heating susceptor compositions
US5183787A (en) 1987-09-10 1993-02-02 General Mills, Inc. Amphoteric ceramic microwave heating susceptor compositions with metal salt moderators
US4972058A (en) * 1989-12-07 1990-11-20 E. I. Du Pont De Nemours And Company Surface heating food wrap with variable microwave transmission
US4970358A (en) * 1989-12-22 1990-11-13 Golden Valley Microwave Foods Inc. Microwave susceptor with attenuator for heat control
US5349168A (en) * 1990-06-27 1994-09-20 Zeneca Inc. Microwaveable packaging composition
WO1997024295A1 (fr) 1995-12-29 1997-07-10 The Procter & Gamble Company Procede de fabrication d'un suscepteur ameliore constitue d'un substrat de silicate expanse dielectrique a revetement activable par les micro-ondes
KR20030025720A (ko) * 2001-09-20 2003-03-29 김연숙 폐기 동슬래그를 이용한 축열재 제조
WO2011095883A2 (fr) 2010-02-05 2011-08-11 Francesco Mascia Composés et compositions pour matériaux suscepteurs
US20130040082A1 (en) * 2010-02-05 2013-02-14 Microenergy S.R.L. Compounds and compositions for susceptor materials

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BEGLEY ET AL.: "Migration into food of polyethylene terephthalate (PET) cyclic oligomers from PET microwave susceptor packaging", FOOD ADDIT CONTAM., vol. 7, no. 6, November 1990 (1990-11-01), pages 797 - 803

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109414136A (zh) * 2016-04-25 2019-03-01 佩利科技有限公司 使用陶瓷加热元件的加热炊具及其制造方法
US11805937B2 (en) * 2016-04-25 2023-11-07 Pellytech Co., Ltd. Heating cooker using ceramic heating element and manufacturing method therefor
CN109414136B (zh) * 2016-04-25 2024-03-19 佩利科技有限公司 使用陶瓷加热元件的加热炊具及其制造方法
WO2018063130A3 (fr) * 2016-09-02 2018-06-14 Arçeli̇k Anoni̇m Şi̇rketi̇ Procédé de préchauffage d'une plaque de cuisson pour des fours combinés

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WO2016020827A3 (fr) 2016-03-31
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