Production process for filling purified water

Natural mineral water plant construction requirements, mineral water diversion process, aeration process, filtration and disinfection process, aeration process, filling process, bottle washing process, mineral water process and its production line, mineral water inspection and sanitation management, mineral water Quality control, production process of Japanese mineral water, quality control and measures in the production of mineral water

First, the method

1. The method is a method for producing aseptic mineral water without adding a bactericide and having good preservation properties.

People have always been looking for sweet and delicious water, and the famous waters in various places are put into Purified water tank for sale. In general, the mineral water is not in the same place as the bottling water, and the extracted water is placed in the water tank. From the time of water intake to bottling, bacteria may breed and breed. In the past, to prevent the proliferation of bacteria, fluorine was added to the extracted water, which would damage the natural flavor of the mineral water, and the residual fluorine may generate harmful substances. It has been suggested that in the case of the addition of fluorine, it can be reprocessed with activated carbon, but it also affects the natural flavor of mineral water. Therefore, it is necessary to study a method that can effectively prevent the proliferation of bacteria from the water intake to the bottling period without adding a fungicide such as fluorine.

2. After the mineral water is withdrawn, it is cooled below 12 degrees Celsius, or while being cooled, it is filtered with a membrane having a pore size of 0.45 μm, and then sterilized, and then placed in a container under aseptic conditions.

The temperature of the mineral water extracted from the bottom is generally around 15-17 degrees Celsius. The water contains various bacteria due to the difference in the source of natural mineral water or the incorporation of air during pumping. According to the method, the extracted mineral water should be cooled to below 12 degrees Celsius, and if it can be cooled to below 10 degrees Celsius, it is more remarkable to cool to below 5 degrees Celsius. Cooling is to prevent mineral water from breeding bacteria. Second, the above conditions are conditions under which the mineral water does not freeze at this temperature. After the mineral water is taken out from the bottom, it is best to force cooling as soon as possible. When cooling, a flat cooler can be used for cooling.

Secondly, according to the method, the extracted water is preferably filtered through a 0.45 micron membrane to remove Gram-negative bacteria or insoluble matter present in the mineral water. This is ideal for removing harmful microorganisms prior to sterilization. Therefore, filtration was carried out using a filter while cooling treatment.

When filtering with a membrane, it is preferred to maintain a working pressure of 1.0 - 2.0 kg, a water flow of 5 - 12 liter / min, and the temperature of the filtered mineral water must be maintained within the above range. A commercially available microporous membrane can be used as the membrane.

After the above cooling treatment and filtration, the mineral water continues to maintain the low temperature condition for a certain period of time, and then is sterilized by a conventional method to completely eliminate the bacteria in the mineral water, such as using a high temperature heating sterilization method. In order to maintain the taste of mineral water, it must be precisely filtered, and can be precisely filtered by a filter with a pore size of 0.22 μm or less. This method can effectively remove all the bacteria existing in the mineral water, and can make the mineral water not deteriorate and maintain the original taste, thereby achieving the same sterilization effect as the high temperature sterilization.

3. The following is illustrated by an example:

Example one

The mineral water extracted from the well water was filtered with a filter cloth to remove the foreign matter, and then cooled to 5 degrees Celsius with a flat plate cooler. The mineral water subjected to the above cooling treatment is then subjected to precision filtration using a filter having a pore size of 0.45 μm. The mineral water treated as described above is transported to the bottling plant by the tank truck and stored in the storage tank of the plant. After the water is pumped out to the storage tank, the water temperature is still maintained in the storage tank. Below 12 degrees Celsius.

The mineral water is stored for 12 hours, treated with activated carbon, precisely filtered through a 0.22 micron filter membrane, and placed in a bottle made of synthetic resin under a clean sterile condition of 100 or less, and sealed, so that it becomes a bottle. Sterilized mineral water.

This mineral water was stored at room temperature for 18 months. Drinking mineral water that has been stored for 12 months at room temperature has been found to retain its original flavor.

Example two

The mineral water extracted from the well was filtered with a filter cloth to remove the foreign matter, and then cooled to 5 degrees Celsius with a flat plate cooler. The water is placed in a water storage tank, and the temperature of the mineral water is kept below 10 degrees Celsius during the period from the extraction of the mineral water to the storage of the water tank and during storage in the tank.

After storage in a water storage tank for about four hours, the mineral water was treated with activated carbon, then heated to 85 ° C, sealed in a synthetic resin bottle, and the container was turned upside down for 30 seconds, thus obtaining bottled sterilized mineral water. .

This kind of mineral water can be stored at room temperature for 18 months, and it can be preserved for 12 months in mineral water at room temperature. It is found that the original flavor remains.

Second, the method

Production method of bottled mineral water: 0.01--5 ppm of ozone is dissolved in mineral water, and then filled into a container and sealed.

Hard water containing potassium, calcium, sodium, iron, phosphorus, zinc and other elements in mineral water is different from soft water in general drinking water. Mineral water is better than soft water because it does not carry out the sterilization process of adding fluorine.

According to the provisions of the Food Law, the sterilization method of mineral water is: sterilization at 85 degrees Celsius for 30 minutes, or other methods similar to this effect, and some do not require sterilization. When it is necessary to sterilize and make a filled and sealed mineral water product, a heating filling method is usually adopted to satisfy the above-mentioned heating and sterilization conditions.

In many cases, mineral water is often directly loaded into the container without being filtered, so it often contains organic matter, which causes the water to have an odor and an odor. The minerals that cause odors and odors destroy the original flavor of the mineral water and reduce its value as beverage water. Even if it was heated and sterilized, the substance which causes odor and odor was not removed, and this problem was not solved.

The purpose of the method is to provide a method for eliminating odor, odor, and the like contained in mineral water to produce a mineral water capable of maintaining a good flavor.

In order to achieve the above purpose, the sealed container is filled with mineral water, and 0.01--5 ppm of ozone is added to the mineral water to dissolve it, and then the mineral water is sealed in a container.

Ozone having a strong oxidizing power oxidizes such an odor and an odorous substance, and as a result, undesirable odor and odor disappear.

Due to the different types of mineral water, the content of odor and odor is different, so the concentration of ozone added in mineral water is also different. Even if mineral water with a relatively low content of odorous substances is added, if the amount of ozone added is less than 0.01 ppm, the flavor of the mineral water will not be improved. For mineral water with a relatively high content of odorous substances, even if the concentration of ozone exceeds a certain amount, the flavor of the mineral water cannot be improved. Ozone is a dangerous substance. If a large amount of ozone is added, the corresponding work will cause trouble. Therefore, the concentration of ozone should be avoided.

In order to add ozone to the mineral water and dissolve it, ozone is produced by an ozone generating device, and mineral water is injected by a foaming method. Ozone has a strong bactericidal power against microorganisms, so it can fully kill the health in mineral water. Therefore, the process of heating the bottle for sterilization can be omitted, and it can be bottled at normal temperature.

Third, the method

In the past, a plastic bottle made of PET or the like for mineral water was sterilized by a sterilizing agent such as hydrogen peroxide water, and the sterilizing agent was left on the bottle, which was harmful to the health of the drinker. In order to solve these problems, various methods have been proposed, in which there is a drying method for cleaning and removing the residue attached to the bottle; and another method, after spraying the sterilizing agent, spraying the cleaning liquid, which has the disadvantage that the sterilizing agent is not cleaned. The work process is very complicated.

The working process of the method is: the plastic bottle and the cap are respectively subjected to moist heat and heat processing under specific conditions, and the mineral water filtered through the filter membrane with a pore size of 0.22 μm or less is bottled under the sterilization condition of 100 grades, that is, Can effectively solve the above problems.

First, the bottle and the cap were separately subjected to moist heat sterilization under the conditions of 70 ° C for 10 seconds. The condition equivalent to holding at 70 degrees Celsius for 10 seconds can be obtained by:

Logy=1-(x-70)/10

The x in the formula is the temperature of the inner wall of the bottle and the cap, and y is the holding time.

In general, plastic bottles and caps have a lower heat-resistant temperature, and if they are not deformed under such sterilization conditions, they can be effectively sterilized, which is desirable. Secondly, if the sterilization temperature is less than 70 degrees Celsius, or equivalent to 10 seconds at this temperature, sufficient sterilization effect cannot be achieved. The specific method for performing hot and humid sterilization of the bottle is: placing the PET bottle mouth downward, inserting the hot water bottle mouth from the bottle mouth into the bottle and spraying it onto the inner wall of the bottle bottom, then the hot water follows the side wall, and then The mouth of the bottle flows out so that the temperature of the inner wall of the bottle rises to the sterilization temperature. When spraying hot water into the bottle, be careful not to touch the front end of the hot water injection nozzle to the hot water flowing from the bottom of the bottle to the side wall, so that the front end of the hot water injection nozzle is protected from contamination, and the hot water can be ensured. The given heat can be effectively utilized during the flow of hot water from the bottom of the bottle to the side wall to achieve the sterilization temperature. For the sterilization of the cap, the same method of washing the inner wall with hot water can be used, or the method of contacting steam or hot air with hot water can be used. For example, a metal bottle cap should be brought into contact with steam so that it can pass through a steam tube at a temperature of 95--1000 degrees Celsius for 3--15 seconds to achieve sterilization.

In order to further improve the sterilization efficiency, while the temperature of the inner wall of the bottle and the lid reaches the sterilization temperature with hot water, the outer wall of the lid of the bottle is also heated. It is better to spray the hot water from above and to the left and right of the bottle. The method is easy to control the temperature, and it is better than steam and wind to keep the bottle from deforming. The same method can be used for the bottle cap.

In the case where steam is used without hot water, the outer wall of the bottle may be sprayed for 3-15 seconds with steam of 0.2-0.5 kg/cm2 (measured pressure). In the case of using hot air, the outer wall of the hot air spray bottle of 80-100 ° C can be used for 3-15 seconds.

For the water treatment and filling of this method, see "The Method of Producing Japanese Bottled Mineral Water".

Water source (quality of water is very important) → quartz sand filter filtration → activated carbon filter filtration → precision filter filtration (composed of multi-layer filter) → ozone disinfection → mineral water---Purified water storage tank

The purified water storage tank manufactured by WEMAC is completely in line with CP2015, EP9.0 and USP40, according to various equipment requirement for purified water storage tank. WEMAC can satisfy various pharmaceutical companies’ requirements for purified water storage tanks. Construction material is 304 and 306L stainless steel.


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