CA2488999A1 - Method of serving heated beverages - Google Patents
Method of serving heated beverages Download PDFInfo
- Publication number
- CA2488999A1 CA2488999A1 CA002488999A CA2488999A CA2488999A1 CA 2488999 A1 CA2488999 A1 CA 2488999A1 CA 002488999 A CA002488999 A CA 002488999A CA 2488999 A CA2488999 A CA 2488999A CA 2488999 A1 CA2488999 A1 CA 2488999A1
- Authority
- CA
- Canada
- Prior art keywords
- head space
- plastic container
- carbon dioxide
- beverage
- filled
- 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.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/52—Adding ingredients
- A23L2/54—Mixing with gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B29/00—Packaging of materials presenting special problems
- B65B29/08—Packaging of edible materials intended to be cooked in the package
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Dispersion Chemistry (AREA)
- Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
- Vacuum Packaging (AREA)
- Non-Alcoholic Beverages (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
Abstract
The objective of the invention is to minimize the deformation of the plastic container filled with beverage that is to be heated to be served. A non-carbonated beverage is filled in a plastic container at a normal temperature.
The head space of the plastic container filled with the non-carbonated beverage is injected with carbon dioxide gas to replace a portion of the air in the head space. The container in which a portion of the air in the head space has been replaced with carbon dioxide is sealed with a cap at its mouth.
The beverage sealed inside the plastic container is heated to be served to consumers.
The head space of the plastic container filled with the non-carbonated beverage is injected with carbon dioxide gas to replace a portion of the air in the head space. The container in which a portion of the air in the head space has been replaced with carbon dioxide is sealed with a cap at its mouth.
The beverage sealed inside the plastic container is heated to be served to consumers.
Description
METHOD OF SERVING HEATED BEVERAGES
CROSS-REFERENCE TO RELATED APPLICATION
This application claims priority to Japanese patent application number JP2002-171443, filed June 12, 2002.
FIELD OF THE INVENTION
The present invention relates to a method of serving a beverage contained in a plastic container by heating the same to, for example, 45 - 90 degrees Celsius.
BACKGROUND OF THE INVENTION
It is a wide practice to fill beverages in plastic container and heat the same in automatic vending machines, warming devices or the like before serving the same to consumers.
Conventionally, beverages are filled in plastic containers at a relatively high temperatures and are heated before they are served to consumers. If beverages are filled in plastic containers at a high temperature, the pressure inside the containers will decrease at normal temperatures. As such, the pressure inside the containers will not rise too much even when the beverages are heated, and deformation of the containers was avoided.
In order not to impair the flavor of the beverage and the lilce reasons, it has also been the practice to fill beverages in containers under sterile conditions at a normal temperature.
A problem has arisen anew, however, because in case beverages are filled in plastic containers at normal temperatures, containers would become deformed as the pressure therein will rise as a result of expansion of gas in the head space when the beverages are heated before served to consumers.
SUMMARY OF THE INVENTION
In order to solve the problem mentioned above, the present invention provides a method of serving heated beverages, which is characterized by the steps of filling a non-carbonated beverage in a plastic container at a normal temperature, injecting carbon dioxide gas into the head space of the plastic container filled with the non-carbonated beverage to replace a portion of the air inside the head space, capping the mouth of the plastic container in which a portion of the air inside the head space has been replaced with carbon dioxide, and serving the beverage sealed inside the plastic container to consumers by heating the same.
DESCRIPTION OF THE DRAWINGS
Figure 1 shows the chronological changes in the bottom dimension of the plastic containers.
Figure 2 shows the chronological changes in the girth of the plastic containers.
Figure 3 shows the chronological changes in the total height of the plastic containers.
DETAILED DESCRIPTION OF THE INVENTION
A thenno-plastic resin such as polyethylene, polypropylene, and polyethylene terephthalate is subjected to blow molding, injection blow molding, stretch blow molding or the like to produce plastic containers to be used in the present invention.
Plastic containers thus produced and caps are subjected to sterilization treatment using hot water or chlorine-base bactericide and fed to sterile filling device.
Beverages to be filled include non-carbonated beverages such as green tea, Qolong tea, black tea, milk tea, black coffee, mills coffee, and fruit juices.
A non-carbonated beverage is filled in a plastic container using known sterile filling device in a sterile air atmosphere at 5 - 40 degrees Celsius, more preferably at a normal temperature between 15 - 35 degrees Celsius.
In the head space of the plastic container filled with non-carbonated beverage is injected carbon dioxide gas, or a gas mixture containing carbon dioxide and nitrogen gas and the container is sealed with a cap. Thus, the air inside the head space is replaced with carbon dioxide gas. Preferably, 30 - 60% of the air in the head space is replaced with carbon dioxide gas. The air in the head space, particularly oxygen, is preferably replaced with as much carbon dioxide as possible in order to prevent oxidation of the contents in the container. The amount of oxygen content is preferably less than 1 mg/100 ml.
CROSS-REFERENCE TO RELATED APPLICATION
This application claims priority to Japanese patent application number JP2002-171443, filed June 12, 2002.
FIELD OF THE INVENTION
The present invention relates to a method of serving a beverage contained in a plastic container by heating the same to, for example, 45 - 90 degrees Celsius.
BACKGROUND OF THE INVENTION
It is a wide practice to fill beverages in plastic container and heat the same in automatic vending machines, warming devices or the like before serving the same to consumers.
Conventionally, beverages are filled in plastic containers at a relatively high temperatures and are heated before they are served to consumers. If beverages are filled in plastic containers at a high temperature, the pressure inside the containers will decrease at normal temperatures. As such, the pressure inside the containers will not rise too much even when the beverages are heated, and deformation of the containers was avoided.
In order not to impair the flavor of the beverage and the lilce reasons, it has also been the practice to fill beverages in containers under sterile conditions at a normal temperature.
A problem has arisen anew, however, because in case beverages are filled in plastic containers at normal temperatures, containers would become deformed as the pressure therein will rise as a result of expansion of gas in the head space when the beverages are heated before served to consumers.
SUMMARY OF THE INVENTION
In order to solve the problem mentioned above, the present invention provides a method of serving heated beverages, which is characterized by the steps of filling a non-carbonated beverage in a plastic container at a normal temperature, injecting carbon dioxide gas into the head space of the plastic container filled with the non-carbonated beverage to replace a portion of the air inside the head space, capping the mouth of the plastic container in which a portion of the air inside the head space has been replaced with carbon dioxide, and serving the beverage sealed inside the plastic container to consumers by heating the same.
DESCRIPTION OF THE DRAWINGS
Figure 1 shows the chronological changes in the bottom dimension of the plastic containers.
Figure 2 shows the chronological changes in the girth of the plastic containers.
Figure 3 shows the chronological changes in the total height of the plastic containers.
DETAILED DESCRIPTION OF THE INVENTION
A thenno-plastic resin such as polyethylene, polypropylene, and polyethylene terephthalate is subjected to blow molding, injection blow molding, stretch blow molding or the like to produce plastic containers to be used in the present invention.
Plastic containers thus produced and caps are subjected to sterilization treatment using hot water or chlorine-base bactericide and fed to sterile filling device.
Beverages to be filled include non-carbonated beverages such as green tea, Qolong tea, black tea, milk tea, black coffee, mills coffee, and fruit juices.
A non-carbonated beverage is filled in a plastic container using known sterile filling device in a sterile air atmosphere at 5 - 40 degrees Celsius, more preferably at a normal temperature between 15 - 35 degrees Celsius.
In the head space of the plastic container filled with non-carbonated beverage is injected carbon dioxide gas, or a gas mixture containing carbon dioxide and nitrogen gas and the container is sealed with a cap. Thus, the air inside the head space is replaced with carbon dioxide gas. Preferably, 30 - 60% of the air in the head space is replaced with carbon dioxide gas. The air in the head space, particularly oxygen, is preferably replaced with as much carbon dioxide as possible in order to prevent oxidation of the contents in the container. The amount of oxygen content is preferably less than 1 mg/100 ml.
After replacement with carbon dioxide is complete, the plastic container is sealed with a cap, transported outside the sterile filling device, and then supplied to retail shops via customary distribution route.
At retail shops, the containers are heated to 45 - 90 degrees Celsius, preferably to 50 -60 degrees Celsius in an automatic vending machine with heating device, warmer apparatus, etc. to be served to consumers.
EXAMPLE
Green tea, milk tea, and milk coffee were filled into 280 mol polyester bottles produced by Ishizuka Glass Co. using sterile filling line manufactured by Dainippon Printing Co. Ltd. Immediately before capping, carbon dioxide gas was injected from the mouth of the bottle to replace the air inside the head space of the product. As a control, nitrogen gas was used to replace the air inside the head space of the product under the same conditions.
Filling conditions:
Liquid temperature: 25 - 30 degrees Filling rate: 600 bottles/minute Table 1 Replacement Flow rate Filling Replacement Product of gas amount ratio gas (NI/Min) (ml) (%) Mean 30.6 Milk 33.3 32.0 coffee 54 NZ 230 283 .
54.1 54.2 C02 180 283 35.1 Milk 41.3 38.2 t ea NZ 230 283 57.3 56.6 57.0 CO2 185 283 46.2 Green 45.0 45.6 t ea NZ 225 283 57.3 51.0 54.2 Stability of the contents:
Table 2 Flavor (As compared P with Control product) d t ro I-m_m__edlately after 55C After 1 week uc production Milk coffeeNo problem No problem Mills No problem No problem tea Green No problem No problem tea Heat resistance test:
Bottles filled with green tea in accordance with Example were immersed in a hot bath at 85 degrees, and chronological changes in the bottom dimension, the girth and the total height were measured. The result is shown below.
Table 3 ImmersionChanges Changes Changes time in bottom in girth in total dimension (mm) hei ht (mm) (mm) (Minute) ReplacedReplacedReplacedReplaced ReplacedReplaced with with with with Nz with with COz Nz COz COz Nz 0 0.00 0.00 0.00 0.00 0.00 0.00 1 0.10 -0.01 0.11 0.54 0.06 0.13 3 0.10 -0.11 0.23 1.04 0.17 0.38 5 0.08 -0.23 0.30 1.42 0.25 0.62 7 0.06 -0.39 0.40 1.86 0.35 0.98 -0.03 -0.75 0.82 2.50 0.53 1.66 10 The chronological changes in the bottom dimension of the plastic containers are shown in Fig. 1; similar changes in the girth in Fig. 2 and changes in the total height in Fig. 3.
The minus of changes in bottom means that the bottom has fallen below.
Effect:
Carbon dioxide gas is contained in the head space of the plastic container provided according to the present invention, and a portion of carbon dioxide has been dissolved in the beverage. The pressure inside the plastic container is decreased to below the atmospheric pressure. As a result, it becomes possible to minimize defornzation of the container due to expansion of the gas inside the head space that is heated by heating mechanism built in the automatic vending machine, warmer device or the like.
At retail shops, the containers are heated to 45 - 90 degrees Celsius, preferably to 50 -60 degrees Celsius in an automatic vending machine with heating device, warmer apparatus, etc. to be served to consumers.
EXAMPLE
Green tea, milk tea, and milk coffee were filled into 280 mol polyester bottles produced by Ishizuka Glass Co. using sterile filling line manufactured by Dainippon Printing Co. Ltd. Immediately before capping, carbon dioxide gas was injected from the mouth of the bottle to replace the air inside the head space of the product. As a control, nitrogen gas was used to replace the air inside the head space of the product under the same conditions.
Filling conditions:
Liquid temperature: 25 - 30 degrees Filling rate: 600 bottles/minute Table 1 Replacement Flow rate Filling Replacement Product of gas amount ratio gas (NI/Min) (ml) (%) Mean 30.6 Milk 33.3 32.0 coffee 54 NZ 230 283 .
54.1 54.2 C02 180 283 35.1 Milk 41.3 38.2 t ea NZ 230 283 57.3 56.6 57.0 CO2 185 283 46.2 Green 45.0 45.6 t ea NZ 225 283 57.3 51.0 54.2 Stability of the contents:
Table 2 Flavor (As compared P with Control product) d t ro I-m_m__edlately after 55C After 1 week uc production Milk coffeeNo problem No problem Mills No problem No problem tea Green No problem No problem tea Heat resistance test:
Bottles filled with green tea in accordance with Example were immersed in a hot bath at 85 degrees, and chronological changes in the bottom dimension, the girth and the total height were measured. The result is shown below.
Table 3 ImmersionChanges Changes Changes time in bottom in girth in total dimension (mm) hei ht (mm) (mm) (Minute) ReplacedReplacedReplacedReplaced ReplacedReplaced with with with with Nz with with COz Nz COz COz Nz 0 0.00 0.00 0.00 0.00 0.00 0.00 1 0.10 -0.01 0.11 0.54 0.06 0.13 3 0.10 -0.11 0.23 1.04 0.17 0.38 5 0.08 -0.23 0.30 1.42 0.25 0.62 7 0.06 -0.39 0.40 1.86 0.35 0.98 -0.03 -0.75 0.82 2.50 0.53 1.66 10 The chronological changes in the bottom dimension of the plastic containers are shown in Fig. 1; similar changes in the girth in Fig. 2 and changes in the total height in Fig. 3.
The minus of changes in bottom means that the bottom has fallen below.
Effect:
Carbon dioxide gas is contained in the head space of the plastic container provided according to the present invention, and a portion of carbon dioxide has been dissolved in the beverage. The pressure inside the plastic container is decreased to below the atmospheric pressure. As a result, it becomes possible to minimize defornzation of the container due to expansion of the gas inside the head space that is heated by heating mechanism built in the automatic vending machine, warmer device or the like.
Claims
1. A method of serving heated beverage which is characterized by the steps of filling a plastic container with a non-carbonated beverage at a normal temperature, injecting carbon dioxide gas into the head space of the plastic container filled with non-carbonated beverage to replace a portion of the air in the head space with carbon dioxide gas, sealing with a cap the mouth of the container in which a portion of the air in the head space has been replaced with carbon dioxide, and heating the beverage sealed inside the plastic container to be served to the consumers.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002-171443 | 2002-06-12 | ||
| JP2002171443A JP2003063571A (en) | 2002-06-12 | 2002-06-12 | Method for providing heated beverage |
| US10/457,424 US20040107839A1 (en) | 2002-06-12 | 2003-06-10 | Method of serving heated beverages |
| US10/457,424 | 2003-06-10 | ||
| PCT/US2003/018134 WO2003106268A1 (en) | 2002-06-12 | 2003-06-10 | Method of serving heated beverages |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2488999A1 true CA2488999A1 (en) | 2003-12-24 |
Family
ID=29738370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002488999A Abandoned CA2488999A1 (en) | 2002-06-12 | 2003-06-10 | Method of serving heated beverages |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1511674A1 (en) |
| KR (1) | KR20050027992A (en) |
| AU (1) | AU2003238967A1 (en) |
| BR (1) | BR0311748A (en) |
| CA (1) | CA2488999A1 (en) |
| MX (1) | MXPA04012370A (en) |
| WO (1) | WO2003106268A1 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3538810A1 (en) * | 1984-11-02 | 1986-05-22 | Jujo Paper Co. Ltd., Tokio/Tokyo | PAPER CONTAINER FOR LIQUID CLEARED IN THE UPPER SPACE WITH GAS AND A METHOD AND DEVICE FOR INJECTING THE GAS |
| JPH0712281B2 (en) * | 1989-06-27 | 1995-02-15 | ザ・コカ‐コーラ・カンパニー | Coffee can beverage manufacturing method |
| JP2003063571A (en) * | 2002-06-12 | 2003-03-05 | Coca Cola Asia Pacific Kenkyu Kaihatsu Center:Kk | Method for providing heated beverage |
-
2003
- 2003-06-10 BR BR0311748-0A patent/BR0311748A/en not_active IP Right Cessation
- 2003-06-10 WO PCT/US2003/018134 patent/WO2003106268A1/en active Search and Examination
- 2003-06-10 AU AU2003238967A patent/AU2003238967A1/en not_active Abandoned
- 2003-06-10 EP EP03734489A patent/EP1511674A1/en not_active Withdrawn
- 2003-06-10 MX MXPA04012370A patent/MXPA04012370A/en not_active Application Discontinuation
- 2003-06-10 KR KR1020047019973A patent/KR20050027992A/en not_active Application Discontinuation
- 2003-06-10 CA CA002488999A patent/CA2488999A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| KR20050027992A (en) | 2005-03-21 |
| EP1511674A1 (en) | 2005-03-09 |
| MXPA04012370A (en) | 2005-02-25 |
| BR0311748A (en) | 2005-03-08 |
| WO2003106268A1 (en) | 2003-12-24 |
| AU2003238967A1 (en) | 2003-12-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |