JP3011926B1 - How to make bottled mineral water - Google Patents

Abstract

Abstract: [Object] To provide a method for producing bottled mineral water that is well sterilized and does not deform plastic bottles. After rinsing a PET bottle with hot water, the bottle is overflow-filled with mineral water kept at 75 to 77 ° C. without abruptly changing the filling pressure, and then the bottle is capped. The method of making mineral water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for producing bottled mineral water.

[0002]

2. Description of the Related Art As a bottle for mineral water, a PET bottle is generally used. However, since this bottle has insufficient heat resistance, it tends to be deformed when heated to 75 ° C. or more.

[0003] Therefore, conventionally, in order to produce bottled mineral water, first, a PET bottle is used for 75 minutes.
After rinsing with hot water of not more than 70 ° C., a method of fully filling hot water kept at 75 ° C. even at about 70 ° C. and then capping is adopted.

[0004]

However, according to the above-mentioned conventional method, since mineral water is heated at 75 ° C. or less, sterilization tends to be insufficient, and there is a possibility that various bacteria may survive in the bottled mineral water. In addition, since the bottle is fully filled, the internal pressure of the bottle increases during the filling of the mineral water, and the panel surface, which is the weakest portion of the bottle, expands, and there is a possibility that a product that does not return to its original state may be generated. That is, the conventional method has a problem that it is difficult to obtain a product which is well sterilized and has no deformation of the PET bottle.

Accordingly, an object of the present invention is to provide a method for producing bottled mineral water that is well sterilized and has no deformation in a plastic bottle.

[0006]

The object of the present invention is to (1) rinse a PET bottle with hot water and then add 75 to 7 to the bottle;
A method of producing bottled mineral water characterized by overflow filling mineral water held at 7 ° C. without suddenly changing the filling pressure, and then capping. (2) Supplying to prevent sudden change in filling pressure The water level of the mineral water in the tank is 1/2 to 1 /
2. The bottled mineral water according to claim 1, wherein the bottle is supplied with mineral water by overflowing so as to prevent the bottle mouth and the sleeve of the nozzle from coming into contact with each other while using the supply nozzle whose opening is made as small as possible while controlling in step 3. Method.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a PET bottle is a container obtained by molding a polyethylene terephthalate (PET) resin conventionally used in beverages containing mineral water by a conventional method. In addition, overflow filling refers to filling the bottle with mineral water until the mineral water overflows from the mouth while releasing the air in the bottle from the mouth of the bottle.

In the present invention, a PET bottle is first rinsed with hot water. This rinse, while inverting the bottle,
What is necessary is just to use the rinser which is a device which injects hot water uniformly into a bottle from a mouth part of a bottle. Note that if the temperature of the hot water used for rinsing is set to 78 ± 1 ° C. or higher, the PET bottle may be thermally contracted, and the bottle may not be filled with a specified amount of mineral water as shown in a test example described later. It costs. There is no particular lower limit for the hot water temperature.
When the temperature is higher than ℃, the cleaning effect is easily obtained.

[0009] Next, 75-7
Overflow filling with mineral water maintained at 7 ° C. without abrupt change in filling pressure. The reason for setting the temperature of the mineral water to be filled at 75 to 77 ° C. is that, as shown in the test examples described below, if the temperature is lower than 75 ° C., it is difficult to obtain a sterilized product. This is because a swollen and deformed product is easily produced. 75-7
Since the temperature range of 7 ° C is narrow, it is necessary to pay close attention to its temperature control.

In the present invention, the mineral water maintained at the above temperature is overflow-filled without suddenly changing the filling pressure. If the filling pressure is suddenly changed during the overflow filling, the PET bottle is softened at a high temperature, and a thin portion such as the panel surface of the bottle is swelled and easily deformed. Therefore, it is important not to suddenly change the filling pressure.

Although various mechanical means may be employed to prevent the charging pressure from suddenly changing, it is practical to employ the following three means, and the means will be described with reference to the drawings.

FIG. 1 shows a filling device F for automatically filling a bottle with mineral water. The filling device F is provided with a supply tank 2 for storing mineral water heated to a predetermined temperature. In the conventional method, the change of the mineral water in the supply tank 2 is almost full, but in the present invention, the change is carried out while controlling to 1/2 to 1/3 thereof.

FIG. 2 shows a nozzle 3 for supplying mineral water to the bottle. In the conventional method, the opening of the nozzle 3 which is the supply port of the mineral water has the size of 4 and 4 ′, but in the present invention, the opening is made as small as 4 and as small as possible. This makes it possible to reduce the ejection pressure from the nozzle and prevent a sudden change in the filling pressure.

FIG. 3 shows a main part when mineral water is filled, and FIG. 3 (b) shows a conventional one in which full filling is performed. According to this conventional type, the bottom of the bottle 1 is moved up and down by a lifter (not shown). A bottle holding bar 6 is attached to the end 5 of the lifter, and the tip of the bar 6 suppresses the mouth of the container 1. With such a structure, when filling with mineral water, full filling is performed while bringing the mouth of the container 1 into contact with the sleeve of the nozzle 3. In this case, since the air in the container 1 is hard to escape, it is unavoidable that the filling pressure changes suddenly. In the present invention, as shown in FIG. 3 (a), in addition to the bottle retainer 6 at the end 5 of the lifter, a spacer 7 is attached to the upper part thereof, and the mouth of the container 1 and the sleeve of the nozzle 3 are filled when mineral water is filled. The parts were prevented from coming into contact with each other, thereby allowing overflow filling while releasing the air in the container 1.

Finally, bottled mineral water can be obtained by capping the bottle filled with mineral water.

[0016]

Example: Inverted 2L PET bottle at 76 ± 1 ° C
The bottle was rinsed by performing the operation of injecting the mineral water held in the bottle uniformly into the bottle from the hot water injection nozzle and discharging the same for 30 seconds. Next, after placing the bottle in a normal position, the bottle was overflow-filled with mineral water maintained at 76 ± 1 ° C. In addition, in this filling,
Using the filling machine F shown in FIG. 1, the water level of the supply tank 2 is set to の of the full amount, and an improved nozzle having the opening 4 shown in FIG. 2 is used as the nozzle so that overflow filling can be performed. The one having a spacer 7 shown in FIG. Finally, the filled bottle was capped and cooled with water to obtain bottled mineral water.

[0017]

[Test Example] The following three kinds of samples were prepared. Target group 1: bottled mineral water manufactured under the same conditions as in the example except that the sample was rinsed and overflow-filled with mineral water kept at 74 ± 1 ° C. Test zone: bottled mineral water obtained in the example Target zone: 78 Bottled mineral water manufactured under the same conditions as in the example except that it was rinsed and overflow-filled with mineral water kept at ± 1 ° C

With respect to the sample, the presence or absence of general viable bacteria in the mineral water in the bottle was detected, and the swelling of the panel surface of the bottle was observed. Before the detection of general viable bacteria, the filling amount of mineral water in the bottle was measured. Table 1 shows the results.

[0019]

[Table 1]

From Table 1, it can be understood that rinsing with mineral water kept at 75 to 77 ° C. and overflow filling of this mineral water without abruptly changing the filling pressure can provide a sterilized product without panel swelling. . Rinse and overflow with mineral water maintained at 78 ± 1 ° C.
It can be understood that the filling amount becomes less than the specified amount and the specified amount cannot be filled.

[0021]

As described above, according to the present invention, it is possible to provide a bottled mineral water in which the mineral water is sterilized even when a PET bottle is used and the bottle does not swell or deform.

[0022]

[Brief description of the drawings]

FIG. 1 is an explanatory front view of a mineral water filling device.

FIG. 2 is a front view of a nozzle.

FIG. 3 is a front view showing a main part when mineral water is filled, in which (b) shows a conventional one and (a) shows one used in the present invention.

[Explanation of symbols]

 1. Pet bottle 2. Supply tank 3. Nozzle 4. Nozzle opening 4 '. Portion that was conventionally an opening. 5. Lifter end Bottle holder 7. Spacer F. Filling device

Claims (2)

(57) [Claims] After rinsing a PET bottle with hot water, the bottle is overflow-filled with mineral water kept at 75 to 77 ° C. without suddenly changing the filling pressure.
Thereafter, capping is performed to produce a bottled mineral water. 2. In order to prevent a sudden change in the filling pressure, the water level of the mineral water in the supply tank is set to 1/2 to 1/1 of the full amount.
2. The bottled mineral water according to claim 1, wherein the bottle is supplied with mineral water by overflowing so as to prevent the bottle mouth and the sleeve of the nozzle from coming into contact with each other while using the supply nozzle whose opening is made as small as possible while controlling in step 3. Recipe.