US20110123683A1 - Self-contained and self-heating food, meal and drink package - Google Patents
Self-contained and self-heating food, meal and drink package Download PDFInfo
- Publication number
- US20110123683A1 US20110123683A1 US12/662,027 US66202710A US2011123683A1 US 20110123683 A1 US20110123683 A1 US 20110123683A1 US 66202710 A US66202710 A US 66202710A US 2011123683 A1 US2011123683 A1 US 2011123683A1
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- United States
- Prior art keywords
- heating element
- container
- package
- meal
- tray
- 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.)
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Classifications
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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
- B65D81/3484—Packages having self-contained heating means, e.g. heating generated by the reaction of two chemicals
-
- 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
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
- B65D77/0413—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section formed by folding or erecting one or more blanks, e.g. carton
- B65D77/0433—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section formed by folding or erecting one or more blanks, e.g. carton the inner container being a tray or like shallow container, not formed by folding or erecting one or more blanks
Definitions
- the present invention relates to a self-contained meal and a portable package for containing the meal and for heating the same.
- the self-contained and self-heating package of the present invention meets this need and possesses significant advantages over previously used packages of this type.
- the new and improved self-contained and self-heating food, meal and/or drink package of the present invention meets or exceeds all current military and government performance specifications and regulations for such packages, and goes beyond meeting all civilian and institutional regulations by USDA and FDA.
- the package of the present invention generally comprises a carton formed of a suitable material such as cardboard or the like, as more specifically described hereinafter; a meal sealed in a container; a heating element; a pouch of activator solution for the heating element; a tray to hold the heating element and the meal; eating utensils and written instructions.
- the heating element is porous and has a composition that is electrochemically heated when exposed to the activator solution to heat the self-contained food, meal and/or drink in a required period of time.
- the package is opened and components are removed therefrom leaving the heating element in the tray.
- the activator solution in the pouch is poured onto the heating element.
- the self-contained food, meal or drink container is then placed on top of the heating element and the tray is slid back into the carton which serves as an oven for the heating process in a pre-determined period of time.
- the self-contained and self-heating food, meal and/or drink package of the present invention is simple in construction, easy to use and reliable in operation.
- FIG. 1 is an exploded perspective view of the components of the self-contained and self-heating meal package of the present invention showing the carton opened and the components removed therefrom, with the exception of eating utensils and written instructions;
- FIG. 2 is a perspective view of the heating element positioned in the tray of the package and the activator solution from the opened pouch being poured onto the heating element;
- FIG. 3 is a perspective view of the self-contained meal container being positioned on the heating element in the tray after the activator solution has been poured onto the heating element;
- FIG. 4 is an enlarged side elevational view in section of the components shown in FIG. 3 being positioned in the carton for the heating of the self-contained meal;
- FIG. 5 is a perspective view of the self-contained meal container being positioned on the heating element in the tray in an inverted position after the activator solution has been poured onto the heating element;
- FIG. 6 is an enlarged side elevational view in section of the components of FIG. 5 being positioned in the carton for the heating of the self-contained meal.
- FIG. 1 illustrates the components of the self-contained and self-heating meal package of the present invention, namely, a heat-resistant carton 10 shown open at one end 11 , a heat-resistant deep tray 12 , a heating element 14 , a meal M sealed in a suitable container 16 , e.g., a high density polymer, and a pouch 18 containing an activator solution for the heating element 14 .
- a suitable container 16 e.g., a high density polymer
- the components 12 , 14 , 16 and 18 Prior to use, the components 12 , 14 , 16 and 18 are enclosed in the carton 10 in a suitable manner along with eating utensils (not shown) and written instructions (not shown).
- the components 10 - 18 of the meal package of the present invention may be of any suitable size and shape, and are constructed in accordance with the description set forth hereinafter.
- the carton 10 may be formed of any suitable material and, preferably, is formed of cardboard having an aluminum foil lining on the inner surface thereof, with the shiny side of the aluminum foil facing inwardly and being of food grade quality.
- a layer of food grade polyethylene may be laminated over the shiny side of the aluminum foil.
- the use of the aluminum foil lining with the shiny side facing inwardly serves to retain heat in the carton 10 when the meal container 16 is positioned therein for heating, as will be more fully explained hereinafter.
- the above-described carton construction has been able to sustain a peak temperature of 190° F. for a period of at least three minutes, and to maintain a temperature of 140° F. for at least 20 minutes.
- the tray 12 is formed of a suitable heat-resistant material such as Styrofoam or a suitable plastic or plastic coated cardboard.
- the tray 12 may be of any suitable size and shape that would fit within the carton 10 as described hereinafter.
- the heating element 14 may be in the form of a porous brick and is of suitable size and shape so as to fit within the tray 12 and allow the meal container 16 to be placed thereon in the tray 12 such that all three components can be positioned within the carton 10 for heating as described hereinafter.
- the composition of the porous brick heating element 14 is such that it will generate sufficient heat to heat the meal container 16 in the carton 10 to a sufficient temperature in a required period of time when the activator solution in the pouch 18 is poured thereon.
- the porous brick heating element 14 is formed of white metallic corrodalloy element, UHMWPE (ultra high molecular weight polyethylene), LDPE (low density polyethylene), and tartaric acid.
- the pouch 18 may be formed of any suitable material for retaining the activator solution therein, such as a high density polyethylene white/polyester, combination.
- the pouch is formed of an opaque film to reduce algae growth in the solution therein.
- the activator solution is of a suitable composition that will react electrochemically with the porous brick heating element 14 to generate sufficient heat to heat the meal container 16 sufficiently when positioned in the carton 10 .
- the porous brick heating element 14 is formed of white metallic corrodalloy element, UHMWPE, LDPE and tartaric acid
- the activator solution is formed of water with salt at about 5.5%, surfactant at about 5% and algaecide at about 5% by weight.
- the corresponding optimal mass of activator solution is 80 g.
- the meal container 16 preferably is formed of a heat-resistant plastic material, such as a polypropylene/polyester film filled with cut glass in the center thereof, or aluminum foil with food grade polyethylene laminated on the inside surface thereof, having the meal sealed therein.
- a heat-resistant plastic material such as a polypropylene/polyester film filled with cut glass in the center thereof, or aluminum foil with food grade polyethylene laminated on the inside surface thereof, having the meal sealed therein.
- Such films are able to withstand high temperatures, do not produce any negative smells or tastes in the meal when heated, and provide a shelf life for the food, meal or drink of up to five years.
- the carton 10 is opened at one end and the tray 12 , heating element 14 , meal container 16 and activator solution pouch 18 are removed therefrom as shown in FIG. 1 . Thereafter, the heating element 14 may be left in the tray 12 or thereafter positioned within the tray 12 , and the activator solution in the pouch 18 is poured thereon, as shown in FIG. 2 .
- the container 16 is then placed on the heating element 14 in the tray 12 , as shown in FIGS. 3 and 5 and the tray 12 with the heating element 14 and meal container 16 therein is positioned within the carton 10 , as shown in FIGS. 4 and 6 for the heating of the contents of the container 16 .
- the electrochemical reaction of the activator solution and the heating element generates sufficient heat in the carton 10 which acts as an oven to heat the contents of the container 16 sufficiently in a required period of time.
- the meal container 16 is positioned within the carton in an inverted position as shown in FIGS. 5 and 6 for the reason that the upper layer of the meal container 16 is thinner than the other portions thereof which will result in faster heating of the contents thereof.
- the meal container 16 may be positioned in the carton in an upright or inverted position depending on the construction of the meal container 16 .
- the tray 12 be deep enough to prevent burning of the hands of the user when the heated meal 16 and tray 12 are removed from the carton 10 .
- the self-contained and self-heating package and method of the present invention it is possible to generate food, meal or drink temperatures in the carton 10 above 190° F. only one minute after activation for at least three minutes. In this manner, it has been possible to heat the container contents adequately for consumption within approximately seven minutes after starting the heating process which is a significant improvement over previously used self-contained and self-heating meal packages which can take considerably longer to heat. Also, the temperature of the heated food, meal or drink can be maintained at an even temperature of 140° F. for at least twenty minutes in the carton 10 .
- the carton 10 may be provided with a temperature indicator (not shown) on the outer surface thereof that indicates the temperature of the food, meal or drink in the container 16 when heated.
- a temperature indicator (not shown) on the outer surface thereof that indicates the temperature of the food, meal or drink in the container 16 when heated.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Package Specialized In Special Use (AREA)
- Cookers (AREA)
Abstract
A self-contained and self-heating food, meal and/or drink package, comprising a heat-resistant carton, a heat-resistant tray, a heating element, a container having a food, meal and/or drink sealed therein, and a pouch containing an activator solution for reacting with the heating element to generate sufficient heat to heat the food, meal and/or drink in the container. To heat the contents of the container, the heating element is positioned within the tray and the activator solution is applied to the heating element. The container then is positioned over the heating element in the tray, and the tray with the heating element and container therein is positioned within the carton which serves as an oven for heating the food, meal and/or drink in the container.
Description
- This application is a continuation-in-part of application Ser. No. 12/591,580 filed on Nov. 24, 2009.
- Not applicable.
- Not applicable.
- 1. Field of the Invention
- The present invention relates to a self-contained meal and a portable package for containing the meal and for heating the same.
- 2. Description of the Background Art
- There is a need for self-contained and self-heating food, meals and drinks in environments where there is no electricity or fire, such as in the military, natural disaster relief efforts and other emergency situations, camping, fishing, boating, travel, vending, school campuses and the like. While some self-contained and self-heating food, meal or drink packages have been developed for these purposes, they all have been subject to one or more of the following disadvantages:
- 1. They have been expensive to manufacture; and/or
- 2. They have been of poor quality and thus unreliable in operation with respect to temperature or the like; and/or
- 3. They have taken too long to heat a meal to a required temperature or to maintain a desired temperature for an adequate time period; and/or
- 4. They have been subject to breakage, deterioration or leakage; and/or
- 5. They have had a short shelf life; and/or
- 6. They have been difficult to use; and/or
- 7. They can expose the hands of a user to residues or high heat; and/or
- 8. They do not have quality temperature growth and stability.
- Accordingly, a need has arisen for a new and improved self-contained and self-heating food, meal and/or drink package which is not subject to any of the above-listed disadvantages. The self-contained and self-heating package of the present invention meets this need and possesses significant advantages over previously used packages of this type.
- The new and improved self-contained and self-heating food, meal and/or drink package of the present invention meets or exceeds all current military and government performance specifications and regulations for such packages, and goes beyond meeting all civilian and institutional regulations by USDA and FDA.
- The package of the present invention generally comprises a carton formed of a suitable material such as cardboard or the like, as more specifically described hereinafter; a meal sealed in a container; a heating element; a pouch of activator solution for the heating element; a tray to hold the heating element and the meal; eating utensils and written instructions. The heating element is porous and has a composition that is electrochemically heated when exposed to the activator solution to heat the self-contained food, meal and/or drink in a required period of time.
- To heat the contents, the package is opened and components are removed therefrom leaving the heating element in the tray. The activator solution in the pouch is poured onto the heating element. The self-contained food, meal or drink container is then placed on top of the heating element and the tray is slid back into the carton which serves as an oven for the heating process in a pre-determined period of time.
- The self-contained and self-heating food, meal and/or drink package of the present invention is simple in construction, easy to use and reliable in operation.
-
FIG. 1 is an exploded perspective view of the components of the self-contained and self-heating meal package of the present invention showing the carton opened and the components removed therefrom, with the exception of eating utensils and written instructions; -
FIG. 2 is a perspective view of the heating element positioned in the tray of the package and the activator solution from the opened pouch being poured onto the heating element; -
FIG. 3 is a perspective view of the self-contained meal container being positioned on the heating element in the tray after the activator solution has been poured onto the heating element; -
FIG. 4 is an enlarged side elevational view in section of the components shown inFIG. 3 being positioned in the carton for the heating of the self-contained meal; -
FIG. 5 is a perspective view of the self-contained meal container being positioned on the heating element in the tray in an inverted position after the activator solution has been poured onto the heating element; and -
FIG. 6 is an enlarged side elevational view in section of the components ofFIG. 5 being positioned in the carton for the heating of the self-contained meal. -
FIG. 1 illustrates the components of the self-contained and self-heating meal package of the present invention, namely, a heat-resistant carton 10 shown open at oneend 11, a heat-resistantdeep tray 12, aheating element 14, a meal M sealed in asuitable container 16, e.g., a high density polymer, and apouch 18 containing an activator solution for theheating element 14. Prior to use, thecomponents carton 10 in a suitable manner along with eating utensils (not shown) and written instructions (not shown). The components 10-18 of the meal package of the present invention may be of any suitable size and shape, and are constructed in accordance with the description set forth hereinafter. - The
carton 10 may be formed of any suitable material and, preferably, is formed of cardboard having an aluminum foil lining on the inner surface thereof, with the shiny side of the aluminum foil facing inwardly and being of food grade quality. In one embodiment, a layer of food grade polyethylene may be laminated over the shiny side of the aluminum foil. The use of the aluminum foil lining with the shiny side facing inwardly serves to retain heat in thecarton 10 when themeal container 16 is positioned therein for heating, as will be more fully explained hereinafter. As an illustrative example, the above-described carton construction has been able to sustain a peak temperature of 190° F. for a period of at least three minutes, and to maintain a temperature of 140° F. for at least 20 minutes. - The
tray 12 is formed of a suitable heat-resistant material such as Styrofoam or a suitable plastic or plastic coated cardboard. Thetray 12 may be of any suitable size and shape that would fit within thecarton 10 as described hereinafter. - The
heating element 14 may be in the form of a porous brick and is of suitable size and shape so as to fit within thetray 12 and allow themeal container 16 to be placed thereon in thetray 12 such that all three components can be positioned within thecarton 10 for heating as described hereinafter. - Preferably, the composition of the porous
brick heating element 14 is such that it will generate sufficient heat to heat themeal container 16 in thecarton 10 to a sufficient temperature in a required period of time when the activator solution in thepouch 18 is poured thereon. In one embodiment, the porousbrick heating element 14 is formed of white metallic corrodalloy element, UHMWPE (ultra high molecular weight polyethylene), LDPE (low density polyethylene), and tartaric acid. - The
pouch 18 may be formed of any suitable material for retaining the activator solution therein, such as a high density polyethylene white/polyester, combination. The pouch is formed of an opaque film to reduce algae growth in the solution therein. - The activator solution is of a suitable composition that will react electrochemically with the porous
brick heating element 14 to generate sufficient heat to heat themeal container 16 sufficiently when positioned in thecarton 10. As an illustrative example, when the porousbrick heating element 14 is formed of white metallic corrodalloy element, UHMWPE, LDPE and tartaric acid, the activator solution is formed of water with salt at about 5.5%, surfactant at about 5% and algaecide at about 5% by weight. For a porous brick heating element with a mass of 40 g, it has been found that the corresponding optimal mass of activator solution is 80 g. - The
meal container 16 preferably is formed of a heat-resistant plastic material, such as a polypropylene/polyester film filled with cut glass in the center thereof, or aluminum foil with food grade polyethylene laminated on the inside surface thereof, having the meal sealed therein. Such films are able to withstand high temperatures, do not produce any negative smells or tastes in the meal when heated, and provide a shelf life for the food, meal or drink of up to five years. - In the use of the self-contained and self-heating meal package of the present invention, the
carton 10 is opened at one end and thetray 12,heating element 14,meal container 16 andactivator solution pouch 18 are removed therefrom as shown inFIG. 1 . Thereafter, theheating element 14 may be left in thetray 12 or thereafter positioned within thetray 12, and the activator solution in thepouch 18 is poured thereon, as shown inFIG. 2 . - The
container 16 is then placed on theheating element 14 in thetray 12, as shown inFIGS. 3 and 5 and thetray 12 with theheating element 14 andmeal container 16 therein is positioned within thecarton 10, as shown inFIGS. 4 and 6 for the heating of the contents of thecontainer 16. The electrochemical reaction of the activator solution and the heating element generates sufficient heat in thecarton 10 which acts as an oven to heat the contents of thecontainer 16 sufficiently in a required period of time. - Preferably, the
meal container 16 is positioned within the carton in an inverted position as shown inFIGS. 5 and 6 for the reason that the upper layer of themeal container 16 is thinner than the other portions thereof which will result in faster heating of the contents thereof. Within the scope of the present invention, themeal container 16 may be positioned in the carton in an upright or inverted position depending on the construction of themeal container 16. - It is important that the
tray 12 be deep enough to prevent burning of the hands of the user when theheated meal 16 andtray 12 are removed from thecarton 10. With the use of the self-contained and self-heating package and method of the present invention, it is possible to generate food, meal or drink temperatures in thecarton 10 above 190° F. only one minute after activation for at least three minutes. In this manner, it has been possible to heat the container contents adequately for consumption within approximately seven minutes after starting the heating process which is a significant improvement over previously used self-contained and self-heating meal packages which can take considerably longer to heat. Also, the temperature of the heated food, meal or drink can be maintained at an even temperature of 140° F. for at least twenty minutes in thecarton 10. - As an additional feature, the
carton 10 may be provided with a temperature indicator (not shown) on the outer surface thereof that indicates the temperature of the food, meal or drink in thecontainer 16 when heated. - While the invention has been described in connection with what are presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (15)
1. A self-contained and self-heating food, meal and/or drink package, comprising:
a heat-resistant carton;
a heat-resistant tray of a size and shape to be received within said carton;
a heating element of a size and shape to be received within said tray;
a container having a food, meal and/or drink sealed therein, said container being of a size and shape to be received within said tray on top of said heating element such that said tray with said heating element and said container therein is receivable within said carton for the heating of the food, meal and/or drink; and
a pouch containing an activator solution for reacting with said heating element to generate sufficient heat to heat the food, meal and/or drink in said container when it is positioned within said carton on top of said heating element in said tray after the activator solution is applied to said heating element.
2. The package of claim 1 wherein said carton is formed of cardboard having an aluminum foil layer on the inner surface thereof with a shiny side of the aluminum foil facing inwardly.
3. The package of claim 2 wherein a layer of food grade polyethylene is laminated over the shiny side of the aluminum foil.
4. The package of claim 1 wherein said tray is formed of Styrofoam, plastic or plastic coated cardboard.
5. The package of claim 1 wherein said heating element is a porous brick heating element.
6. The package of claim 5 wherein said porous brick heating element is composed of white metallic corrodalloy element, UHMWPE, LDPE and tartaric acid.
7. The package of claim 1 wherein said container is formed of polypropylene/polyester film.
8. The package of claim 7 wherein said polypropylene/polyester film is filled with cut glass in a center portion thereof.
9. The package of claim 1 wherein said container is formed of aluminum foil with food grade polyethylene on an inner surface thereof.
10. The package of claim 1 wherein said pouch is formed of a high density polyethylene opaque white/polyester combination.
11. The package of claim 6 wherein the activator solution in said pouch is composed of water, salt, surfactant and algaecide.
12. The package of claim 11 wherein said porous brick heating element has a mass of approximately 40 g, and the activator solution has a mass of approximately 80 g.
13. A method of heating the food, meal and/or drink in the self-contained and self-heating meal package of claim 1 , comprising:
positioning said heating element within said tray;
applying the activator solution from said pouch onto said heating element;
positioning said container on top of said heating element in said tray; and
positioning said tray with said activated heating element and container therein within said carton so that said carton acts as an oven for heating the food, meal and/or drink within said container.
14. The method of claim 13 wherein said container is positioned on top of said heating element in an inverted position.
15. The method of claim 13 wherein said container is positioned on top of said heating element in an upright position.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US12/662,027 US20110123683A1 (en) | 2009-11-24 | 2010-03-29 | Self-contained and self-heating food, meal and drink package |
PCT/CA2010/001835 WO2011063505A1 (en) | 2009-11-24 | 2010-11-19 | Self-contained and self-heating food, meal and drink package |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US12/591,580 US20110123684A1 (en) | 2009-11-24 | 2009-11-24 | Self-contained and self-heating food, meal and drink package |
US12/662,027 US20110123683A1 (en) | 2009-11-24 | 2010-03-29 | Self-contained and self-heating food, meal and drink package |
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Application Number | Title | Priority Date | Filing Date |
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US12/591,580 Continuation-In-Part US20110123684A1 (en) | 2009-11-24 | 2009-11-24 | Self-contained and self-heating food, meal and drink package |
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US20110123683A1 true US20110123683A1 (en) | 2011-05-26 |
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US12/662,027 Abandoned US20110123683A1 (en) | 2009-11-24 | 2010-03-29 | Self-contained and self-heating food, meal and drink package |
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WO (1) | WO2011063505A1 (en) |
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US20170042374A1 (en) * | 2015-08-13 | 2017-02-16 | James Young | Thermal food container |
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CN104619083B (en) | 2015-01-15 | 2017-10-20 | 生迪光电科技股份有限公司 | Compatible silicon controlled constant voltage circuit, LED light adjusting circuits and LED illumination device |
CN107912716A (en) * | 2017-10-18 | 2018-04-17 | 成都食为天科技有限公司 | A kind of convenient and instant type Benben chicken and preparation method thereof |
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Also Published As
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WO2011063505A1 (en) | 2011-06-03 |
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