JP7054082B2 - Liquid quality modifier - Google Patents

Description

The present invention relates to a liquid quality modifying device that modifies the liquid quality of a beverage containing water.

Conventionally, devices for modifying water more deliciously have been widely developed and used. If delicious water is used, various beverages mixed with the water will be delicious, and even if it is used for cooking, it is expected that a more delicious dish will be produced. For example, depending on what kind of water is used when brewing coffee, the finished coffee will also be affected.

A water purifier is generally used as a device for modifying water deliciously. In many cases, water is deliciously modified by filtering with a filter or adsorbing substances using activated carbon or the like. However, it uses a device having a complicated structure and needs to be replaced at predetermined intervals. Therefore, the installation cost and the running cost are expensive.

On the other hand, although the technical field is completely different, there is a method described as "F polishing" in Patent Document 1 as a technique for preventing the adhesion of powder. Conventionally, the polishing process is performed to reduce or eliminate the unevenness, but by using the method described in Patent Document 1, a predetermined unevenness can be formed even though the polishing process is performed.

Japanese Patent No. 40644438

The present invention has been made in view of the above-mentioned circumstances, and has a very simple configuration, and is capable of modifying the liquid quality of a beverage by reducing the running cost without the need for replacement or the like. It is intended to be provided.

The invention according to claim 1 of the present application is a liquid quality modifying device that modifies the liquid quality of drinking water, green tea, and coffee, and has predetermined unevenness on a part or all of the surface that the drinking water, green tea, and coffee come into contact with. Is formed, and the predetermined unevenness is a liquid quality modifying device characterized in that the average wave height to wavelength ratio is 0.0001 or more in a range of a wavelength of 1 μm or less.

The invention according to claim 2 of the present application is a liquid quality modifying device characterized in that the predetermined unevenness in the invention according to claim 1 of the present application is formed in the flow path of the drinking water, green tea, and coffee. be.

In the invention according to claim 3, the predetermined unevenness in the invention according to claim 1 or 2 of the present application is formed on a member provided in the flow path of the drinking water, green tea, or coffee. It is a liquid quality modifying device characterized by the above.

In the invention according to claim 4, the predetermined unevenness in the invention according to any one of claims 1 to 3 of the present application is a part or all of the inner surface of the container for drinking water, green tea, and coffee. It is a liquid quality modifying device characterized by being formed in.

The invention according to claim 5 of the present application is the surface of a member in which the predetermined unevenness in the invention according to any one of claims 1 to 4 of the present application is present in the liquid of drinking water, green tea, or coffee. It is a liquid quality modifying apparatus characterized in that it is formed in a part or all of the above.

According to the present invention, the configuration is very simple, and there is an effect that the running cost can be reduced without the need for replacement and the like, and the liquid quality of the beverage can be modified.

It is a schematic diagram of the main part which shows the 1st Embodiment of the liquid quality modification apparatus of this invention. It is a graph which shows an example of the relationship of the wave height-to-wavelength ratio with respect to the wavelength when each rank of F polishing and mirror finish are performed. It is explanatory drawing of 1st Embodiment of the liquid quality modification apparatus of this invention, and an example of the sensory test using the mirror-finished product. It is a schematic diagram of the main part which shows the modification of the 1st Embodiment of the liquid quality modification apparatus of this invention. It is a schematic diagram of the main part which shows the 2nd Embodiment of the liquid quality modification apparatus of this invention. It is explanatory drawing of the 2nd Embodiment of the liquid quality modification apparatus of this invention, and an example of the sensory test using the mirror-finished product, and the unprocessed product. It is a schematic diagram of the main part which shows the modification of the 2nd Embodiment of the liquid quality modification apparatus of this invention.

FIG. 1 is a schematic diagram of a main part showing a first embodiment of the liquid quality modifying apparatus of the present invention. In the figure, 11 is a gutter, 12 is an uneven surface, and 13 is a beverage. In the example shown in FIG. 1, the flow path of the beverage 13 is formed as a gutter 11, and a predetermined unevenness is formed on the inner side surface that the beverage 13 touches to form the uneven surface 12.

The gutter 11 is made of a metal such as stainless steel or a resin, and as described above, a predetermined unevenness is formed on the inner surface thereof. As the predetermined unevenness, for example, it is preferable that a substantially uniform unevenness having an average wave height to wavelength ratio of 0.0001 or more is formed in a wavelength range of 1 μm or less. An example of this predetermined unevenness will be described later using the measurement results. By flowing the beverage 13 on the uneven surface 12 of the gutter 11 on which such predetermined irregularities are formed, the beverage 13 can be more deliciously modified as compared with the conventional case, as shown in the experimental examples described later. Further, for maintenance, cleaning may be performed with a detergent or the like, and it is possible to prevent an increase in cost due to replacement of members or the like.

The predetermined unevenness to be formed may be a streak-like unevenness in any direction, such as a direction in which the beverage 13 flows, a direction substantially orthogonal to the direction in which the beverage 13 flows, or a direction at which the beverage 13 intersects diagonally. It may be formed so that unevenness in the direction intersects. Of course, the unevenness may be randomly formed. Of course, in addition to applying the predetermined unevenness to the entire inner surface of the gutter 11, even if the predetermined unevenness is applied to a part of the inner surface such as from the bottom where the beverage 13 flows to a predetermined height or provided in a band shape. good.

The processing method for forming irregularities on the inner surface of the metal gutter 11 is not limited to a specific method, but here, as an example, the method described as "F polishing" in the above-mentioned Patent Document 1 is used. The uneven surface 12 is formed, and an experimental example described later is performed. As described above, this F-polishing is described in Patent Document 1 as a technique for preventing powder from adhering to a metal surface, but modification of the beverage 13 has not been considered. In F polishing described in Patent Document 1, the metal surface is polished using a polishing material in which hard polishing particles such as diamond whose sharpness is not lost even if the polishing work is advanced are attached to paper or cloth. It is a thing. It is ranked according to the nominal precision of the abrasive particles, and "F-2" (# 60), "F-1" (# 120), "F0" (# 240) in the order of coarser surface finish. , "F1" (# 320), "F2" (# 400), "F3" (# 500), "F4" (# 600), "F5" (# 800), "F6" (# 1000), etc. I will call it.

Conventionally, the polishing process is performed to reduce or eliminate the unevenness, but the above-mentioned F polishing is a processing method for forming a predetermined unevenness while being a polishing process. Polishing processing that leaves unevenness has been performed conventionally, but the state of the remaining unevenness is unknown and there is no reproducibility. In the present invention, a predetermined unevenness known as what kind of unevenness is formed on the inner surface of the gutter 11 to form the uneven surface 12. As one method for forming the predetermined unevenness, the above-mentioned F polishing can be used. Further, when the above-mentioned F polishing process is performed, the unevenness that has existed until then is eliminated, and the predetermined unevenness is formed by polishing, so that the predetermined unevenness in a stable state is formed.

A wavenumber analysis using a Fourier transform was attempted on a predetermined unevenness formed on the uneven surface 12 by the above-mentioned F polishing. By this analysis, the characteristics of the unevenness of the uneven surface 12 can be quantified, and specifically, the unevenness at what interval and the height difference can be expressed numerically. Regarding the uneven shape of the steel sheet surface due to F polishing of several ranks of F polishing, the following equation (1)
X (k) = Σ _{n = 0} ^N-1 x (n) · exp (-2πknj / N)… (1)
The discrete Fourier transform was performed according to the above, and the relationship between the wavelength (unevenness pitch) component L and the wave height (amplitude: unevenness height) component H of the unevenness was analyzed. For comparative reference, Fourier analysis was also performed for the case where mirror finishing was performed, and comparison with F polishing was performed. In equation (1), x (n) is the height measured by the probe sensor at a predetermined sampling interval when the surface of the steel plate is scanned by the probe sensor in a predetermined length (distance) direction. The value in the direction (representing the unevenness of the surface), that is, the nth digital sampling value in the total sampling number N. Further, k is a value corresponding to the wave number (spatial frequency) f [times / μm] per unit length (k = 0, 1, 2, ..., N-1), and the total measurement distance is D [μm]. Then, it is expressed by k = fD.

That is, X (k) is a vector representing the signal strength after the Fourier transform with respect to the wave number corresponding value k per unit length, and the absolute value (length) of this vector is proportional to the unevenness (amplitude) of the wave. Therefore, the wave height (amplitude) H of the uneven shape is represented by 2 | X (k) | / N with respect to the converted signal strength X (k) with respect to the value k, and the ratio of the wave height (amplitude) H to the wavelength L ( “Wave height (amplitude) to wavelength ratio”, “wave height ratio” or “amplitude ratio”) H / L is H / L = 2 | X (k) | / NL ... (2)
It is represented by.

FIG. 2 is a graph showing an example of the relationship between the wave height to the wavelength ratio with respect to the wavelength when each rank of F polishing and mirror finishing are performed. When the above-mentioned wave height to wavelength ratio is shown for each wavelength, the result shown in FIG. 2 is obtained as an example. FIG. 2 shows the average of the results measured at several points when the rank of F polishing is F-2, F-1, F0, F1, F4, F5, F6 and when the mirror finish is performed. ..

With reference to the analysis results shown in FIG. 2, clear differences appear in each graph in the range where the wavelength L is 1 μm or less. Looking at this wavelength L in the range of 1 μm or less, when F polishing is performed, the value of the wave height to wavelength ratio is larger than that when mirror finishing is performed. More specifically, the value of the wave height to wavelength ratio in the range where the wavelength L is 1 μm or less is 0.0001 or less when mirror finishing is performed, whereas it is 0.0001 or less when F polishing is performed. Ranks are about 0.0001 to 0.0006 for F6, F5, and F4, about 0.0006 to 0.001 for F1, about 0.001 to 0.002 for F0, and about F-1. It was about 0.005 to 0.008, and in the case of F-2, it was about 0.008 to 0.015.

Further, according to the analysis result shown in FIG. 2, for example, when the wavelength L is viewed in the range of 1 μm or less, the amplitude of the graph is smaller in the case of F polishing than in the case of mirror finishing. This amplitude is about 20 to 30% from the average value at each wavelength. Therefore, it can be seen that almost uniform unevenness is stably formed by F polishing. For example, when the mirror finish shown in FIG. 2 is performed by buffing, which is a general polishing technique, the wave height to wavelength ratio varies by about two orders of magnitude, and the unevenness is not stably formed. I understand. It was found that the analysis results differed depending on the measurement location on the unpolished surface and the surface where the original unevenness was left, and the variation was large, and the unevenness as shown in FIG. 2 did not exist. rice field.

Of course, even in the case of F polishing, although there are variations in each unevenness, unevenness with uniform frequency characteristics is formed when viewed as a surface, and such unevenness of frequency characteristics is stably reproduced. .. This indicates that the predetermined unevenness is stably reproduced on the uneven surface 12 of the gutter 11.

FIG. 3 is an explanatory diagram of a first embodiment of the liquid quality modifying apparatus of the present invention and an example of a sensory test using a mirror-finished product. In this example, a gutter 11 having an uneven surface 12 by polishing the inner surface with F-2, F2, and F5 having the rank of F polishing described above and a gutter having a mirror-finished inner surface were created. Then, as shown in FIG. 1, the gutter 11 is tilted diagonally, 250 ml of drinking water is poured from the upper part as a beverage 13 over about 25 seconds, and 20 ml of the drinking water flowing to the lower part is poured into a paper cup at a time. Evaluation was performed by the subjects. The evaluation ranked four items: "sweetness," "bitterness," "smoothness," and "satisfaction." Regarding "sweetness", "smoothness", and "satisfaction", 1st is 4 points, 2nd is 3 points, 3rd is 2 points, and 4th is 1 point, depending on the ranking. Regarding "bitterness", the points were given so that the highest score was given in the order of not being painful, with 1st being 1 point, 2nd being 2 points, 3rd being 3 points, and 4th being 4 points. FIG. 3 shows the average score of the evaluation results by a plurality of subjects. In addition, since the same rank may be given at the time of evaluation by the subject, the total of each item is not 10 points, and the total score is not 40 points.

As can be seen from the evaluation results shown in FIG. 3, in all items and in the overall evaluation (overall score), the gutter 11 which has been subjected to F polishing to form a predetermined unevenness as compared with the mirror-finished gutter is used. The better the evaluation is obtained. Even in the comments of the subjects, when the mirror-finished gutter was used, it was evaluated as not sweet, bitter, and rough and unfavorable, whereas the gutter 11 having a predetermined unevenness was used. If it is, it is evaluated as sweet and smooth, without bitterness and preferable.

In this way, the drinking water was clearly and deliciously modified by flowing the drinking water through the gutter 11 having the unevenness formed by the F polishing, and the effect was that the unevenness was formed by the F polishing rather than the mirror-finished gutter. The gutter 11 was superior. From FIG. 2, the unevenness formed by F polishing is unevenness having an average wave height to wavelength ratio of 0.0001 or more in a wavelength range of 1 μm or less, and the blur width is also 20 to 30% of the average value at each wavelength. The unevenness is almost uniform. It was found that the beverage 13 can be deliciously modified by forming such predetermined irregularities on the uneven surface 12 of the gutter 11 and flowing the beverage 13 on the uneven surface 12.

It should be noted that when the beverage 13 is poured into a gutter in which the original unevenness remains, the beverage 13 is more likely to be poured into the mirror-finished gutter in the unpolished state or after being slightly polished. The evaluation was low. In these gutters, the analysis results differ depending on the measurement location of the surface that becomes the flow path, and the variation is large. As in the present invention, the liquid quality of the beverage 13 can be deliciously modified by forming the predetermined unevenness as described above.

In the first embodiment shown in FIG. 1, the gutter 11 having a semicircular cross section has been described as an example. However, the present invention is not limited to this, and for example, a flow path having a flat bottom surface having a U-shaped cross section or, for example, a pipeline may be used, and a predetermined unevenness may be formed on the surface through which the beverage flows. Further, the shape of the flow path is not limited to a straight line, and the shape of the flow path such as a curved flow path or a spiral flow path does not matter.

FIG. 4 is a schematic diagram of a main part showing a modified example of the first embodiment of the liquid quality modifying device of the present invention. In the figure, 14 is an obstacle and 15 is a mesh. As a method of providing a predetermined unevenness in the flow path of the beverage, for example, as shown in FIG. 4A, an obstacle 14 may be provided in the flow path of the beverage of the gutter 11. Then, a predetermined unevenness is formed on a part or all of the surface of the obstacle 14, and the uneven surface 12 is formed. When the beverage flows along the flow path, the beverage comes into contact with the obstacle 14. The uneven surface 12 of the obstacle 14 is formed with the predetermined unevenness as described above, and the beverage comes into contact with the predetermined unevenness. At that time, the liquid quality of the beverage will be modified.

In the example shown in FIG. 4A, a number of obstacles 14 are provided so that the beverage 13 touches the predetermined unevenness provided on the obstacle 14 as much as possible. Of course, the obstacle 14 is provided. The number of drinks is arbitrary. Further, the shape and arrangement of the obstacle 14 are also arbitrary. It should be noted that the obstacle 14 does not have to be fixed to the bottom surface or the side surface of the flow path, and may be configured such that it stays due to its own weight or is accommodated in a net or the like and fluctuates due to the flow. Of course, as shown in FIG. 1, it goes without saying that predetermined unevenness may be provided on the bottom surface and the side surface serving as the flow path.

In the example shown in FIG. 4B, the mesh 15 is provided in the flow path of the beverage of the gutter 11. The surface of the mesh 15 is formed with predetermined irregularities as described above. When the beverage flows along the flow path, the beverage passes through the mesh 15 provided on the way. As the beverage passes through the mesh 15, it comes into contact with predetermined irregularities formed on the mesh 15. At that time, the liquid quality of the beverage will be modified.

In the example shown in FIG. 4B, an example in which one mesh 15 is provided is shown, but a plurality of meshes 15 may be provided so that the beverage can pass through the plurality of meshes 15. The size and fineness of the mesh 15 are arbitrary as long as the predetermined unevenness can be formed. Further, as shown in FIG. 1, predetermined unevenness may be provided on the bottom surface and the side surface serving as the flow path.

The configuration is not limited to the configuration shown in FIG. 1 and the modification shown in FIG. 4, and any other configuration can be used as long as the beverage 13 comes into contact with a predetermined unevenness while the beverage 13 is flowing. Needless to say, it's okay.

FIG. 5 is a schematic diagram of a main part showing a second embodiment of the liquid quality modifying apparatus of the present invention. In the figure, 21 is a container, 22 is an inner surface, 23 is an inner bottom surface, and 24 is an outer surface. In this second embodiment, an example of a container formed in a cup shape is shown. In the example shown in FIG. 5, the container 21 shows a drinking container having a double structure composed of a plate material serving as an outer surface 24 and a plate material serving as an inner side surface 22 and an inner bottom surface 23. Not limited to this, a single-layer structure in which one surface of the plate material is the outer surface 24 and the other surface is the inner side surface 22 and the inner bottom surface 23 may be used. Needless to say, various modifications such as a structure with a handle are possible. The processing of the outer surface 24 is optional. The shape of the container is arbitrary, and it may have a wide or narrow mouth shape, or may have a cross section other than a circular shape such as a box shape, and may have any shape as long as it can store beverages. There may be.

A predetermined unevenness is formed on the surface of the container 21 in contact with the beverage, that is, the inner surface 22 and / or the inner bottom surface 23 which is the inner surface of the container 21 in which the beverage is stored. The predetermined unevenness is the same as that of the first embodiment described above. For example, it is preferable to form unevenness having an average wavelength-to-wavelength height ratio of 0.0001 or more in a range of wavelength of 1 μm or less. Further, it is preferable that the predetermined unevenness is substantially uniform regardless of the formed portion, and that the unevenness having uniform frequency characteristics is formed when viewed as a surface. By forming such predetermined unevenness, the liquid quality of the beverage can be deliciously modified. As an example of the processing method for forming such predetermined unevenness, when the container 21 is made of metal, for example, the above-mentioned F polishing can be used as in the first embodiment.

The predetermined unevenness to be formed is formed as an unevenness extending in the vertical direction (the direction connecting the opening and the inner bottom surface 23) on the inner surface 22 or as an unevenness extending in the circumferential direction, or a spiral-shaped unevenness. It may be a streak-like unevenness in any direction. Further, the inner bottom surface 23 may also have various streak-like irregularities such as concentric irregularities and radial irregularities. In any case, the unevenness is not limited to the streak-like unevenness, and may be a randomly formed unevenness.

Of course, the predetermined unevenness is applied to the entire inner surface 22 and the inner bottom surface 23, the inner surface 22 is provided from the inner bottom surface 23 where the beverage is easily touched to a predetermined height, and the inner bottom surface 23 is also provided only partially. , A part of which may be provided with predetermined unevenness. When the unevenness is formed on a part of the inner side surface 22 in this way, the material may be unified as the whole container as in the above example, or the part other than the region where the unevenness is formed may be changed to another material.

FIG. 6 is an explanatory diagram of a second embodiment of the liquid quality modifying apparatus of the present invention and an example of a sensory test using a mirror-finished product and an unprocessed product. In this example, a container 21 in which the inner side surface 22 is polished by the above-mentioned F polishing ranks F-2, F2, and F5 and a container in which the inner side surface 22 is mirror-finished are created and used, and the inner side surface 22 is polished. Tested using a non-existent container. 250 ml of drinking water was poured into each container, left for 1 minute, and then 20 ml was poured into a paper cup, and evaluation was performed by a plurality of subjects. The evaluation items are "sweetness", "bitterness", "smoothness", and "satisfaction", and "sweetness", "smoothness", and "satisfaction". No. 1 is 5 points, No. 2 is 4 points, No. 3 is 3 points, No. 4 is 2 points, No. 5 is 1 point, and "Bitterness" is No. 1 according to the ranking. Scores were given so that the highest scores were given in the order of no bitterness, with 2 points for 2 points, 3 points for 3rd points, 4 points for 4th points, and 5 points for 5th points. FIG. 6 shows the average score of the evaluation results by a plurality of subjects. In addition, since the same ranking may be given when the subject evaluates, the total of each item is not 15 points, and the total score is not 60 points.

From the evaluation results shown in FIG. 6, when the container whose inner surface is mirror-finished and the container 21 whose inner surface 22 is F-polished are compared, although there are superiority and inferiority depending on the items, the inner surface is mirror-finished in the comprehensive evaluation (total score). A better evaluation is obtained when the container 21 in which the inner side surface 22 is F-polished to form a predetermined unevenness is used as compared with the finished container. Further, as compared with the unpolished container, it is better to use the container 21 in which the inner side surface 22 is F-polished to form a predetermined unevenness in any item and in the comprehensive evaluation (total score). Has been well received.

In this way, by putting the drinking water into the container 21 having the unevenness formed by F polishing, the drinking water is clearly and deliciously modified, and the effect is more than that of the mirror-finished container and the unpolished container. However, the container 21 having irregularities formed by F polishing was superior. From FIG. 2, the unevenness formed by F polishing is unevenness having an average wave height to wavelength ratio of 0.0001 or more in a wavelength range of 1 μm or less, and the blur width is also 20 to 30% of the average value at each wavelength. The unevenness is almost uniform. It was found that the beverage can be deliciously modified by putting the beverage in a container 21 having such predetermined irregularities formed on the inner side surface 22 and the inner bottom surface 23.

FIG. 7 is a schematic diagram of a main part showing a modified example of the second embodiment of the liquid quality modifying device of the present invention. In the figure, 25 is a blade. When a beverage is housed in the container 21 and another member is inserted into the beverage, the member may have predetermined irregularities as described above. In the modified example shown in FIG. 7, a blade 25 for stirring the beverage 13 in the container 21 is provided, and the above-mentioned predetermined unevenness is formed on a part or all of the surface of the blade 25, and the uneven surface is formed. An example of 12 is shown. When the beverage 13 is placed in the container 21 and the blade 25 is submerged in the beverage 13, the beverage 13 comes into contact with the uneven surface 12 of the blade 25. As a result, the liquid quality of the beverage 13 is modified. Further, when the blade 25 is rotated for stirring, the beverage 13 further touches the uneven surface 12 of the blade 25, and the liquid quality of the beverage 13 is further modified.

In the example shown in FIG. 7, the blade 25 is inserted into the beverage 13 from the upper opening of the container 21, but for example, the blade 25 is provided at the bottom of the container 21 or the rotation protruding from the bottom. It may have various configurations such as a configuration in which the blade 25 is provided on the shaft. Further, although an example in which the uneven surface 12 is formed on the blade 25 for stirring the beverage 13 is shown here, the present invention is not limited to this, and various members to be inserted into the beverage 13 and the beverage provided in the container 21 are poured. As a result, with respect to various members that will be present in the liquid of the beverage, predetermined unevenness may be formed at least in the portion in contact with the beverage, and the liquid quality of the beverage 13 may be modified. Further, a member having predetermined unevenness for modifying the liquid quality of the beverage 13 may be prepared and inserted into the beverage 13 or installed in advance. For example, the surface of a rod-shaped or plate-shaped member may be provided with predetermined irregularities and the member may be inserted or pre-installed in the beverage 13, or the surface of a spherical or cubic member may be provided with predetermined irregularities in the beverage 13. It may be submerged, floated or floated. Of course, as shown in FIG. 5, predetermined unevenness may be provided on the bottom surface and the side surface of the container 21.

As can be seen from the first embodiment and the second embodiment described above and examples of modifications thereof, according to the present invention, by forming the predetermined unevenness as described above on the surface in contact with the beverage, the present invention thereof is formed. The liquid quality of the beverage in contact with the surface can be modified. In the above-mentioned sensory test, drinking water was used as a beverage, but it has been confirmed that other beverages can be modified. For example, some green teas have a mellow taste, and some coffees have a bitter taste due to increased bitterness. It has also been confirmed that alcoholic beverages, for example, have been modified such that they become sweet and mellow with shochu. Of course, the liquid quality can be modified for other beverages as well.

In addition, a configuration in which a predetermined unevenness is provided in the flow path shown in the first embodiment and a configuration in which a predetermined unevenness is provided in the storage portion or the member inserted into the storage portion shown in the second embodiment. Needless to say, they may be combined. For example, a storage tank in which a beverage is stored and a pipeline following the storage tank may be provided with predetermined unevenness.

In the above-mentioned first and second embodiments and modified examples thereof, an example in which F polishing is used as a method for forming predetermined unevenness is shown. However, the present invention is not limited to this, and is a processing method capable of forming predetermined unevenness having the above-mentioned characteristics by using other processing methods such as laser processing, precision machining, hairline processing, blast processing, and etching processing. If there is, it can be applied. Furthermore, regarding the material of the member that forms the predetermined unevenness, in addition to stainless steel that is generally used, various metals and alloys such as titanium, copper, and tin, or processing that provides the predetermined unevenness such as glass, resin, and pottery. As long as it is a material that can be applied, members of various materials may be used. Further, for example, a predetermined unevenness may be formed on the mold and molded with a resin or the like using the mold, or post-processing may be performed using the mold, and the predetermined unevenness is formed on the surface after molding. Needless to say, it is included in the present invention.

11 ... Gutter, 12 ... Uneven surface, 13 ... Beverage, 14 ... Obstacle, 15 ... Mesh, 21 ... Container, 22 ... Inner surface, 23 ... Inner bottom surface, 24 ... Outer surface, 25 ... Feather.

Claims (5)

It is a liquid quality modifying device that modifies the liquid quality of drinking water, green tea, and coffee, and predetermined unevenness is formed on a part or all of the surface that the drinking water, green tea, and coffee come into contact with. Is a liquid quality modifying device characterized in that the average wave height to wavelength ratio is unevenness of 0.0001 or more in a range of a wavelength of 1 μm or less. The liquid quality modifying device according to claim 1, wherein the predetermined unevenness is formed in the flow path of the drinking water, green tea, and coffee . The liquid quality modifying device according to claim 1 or 2, wherein the predetermined unevenness is formed on a member provided in the flow path of the drinking water, green tea, or coffee . The liquid quality modification according to any one of claims 1 to 3, wherein the predetermined unevenness is formed on a part or all of the inner surface of the drinking water, green tea, and coffee accommodating portion. Device. The predetermined unevenness is formed in any one of claims 1 to 4, wherein the predetermined unevenness is formed on a part or all of the surface of the member present in the liquid of drinking water, green tea, or coffee . The liquid quality modifying device described.

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