JP2000078929A - Permeation of liquid into culture medium for cultivating mushroom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for permeating a liquid into a culture medium for cultivating mushrooms by which the liquid in a container can readily, rapidly and uniformly be permeated into the culture medium for cultivating the mushrooms formed into a massive shape kept in a dry state by making the liquid such as water used for the artificial cultivation of the mushrooms escape. SOLUTION: A culture medium 10 for cultivating mushrooms formed into a massive shape kept in a dry state by making a liquid such as water used for the artificial cultivation of the mushrooms escape is dipped in a liquid 20 housed in the interior of a container 30. An opening 32 of the container 30 is then covered with a lid unit 40 and sealed. Air in the container 30 is subsequently passed through a suction port 42 provided in the lid unit 40, sucked to the outside of the container 30 and removed to keep the interior of the container 30 in a state of a lower vacuum pressure than the atmospheric pressure. Air remaining in the culture medium 10 for cultivating the mushrooms dipped in the liquid 20 in the container 30 is made to escape to the outside of the culture medium 10 for cultivating the mushrooms and permeate the liquid 20 in the container 30 into the culture medium 10 for cultivating the mushrooms.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cultivating mushrooms, wherein water or a liquid such as an aqueous solution containing a disinfectant or a nutrient is penetrated into a mushroom cultivation medium using artificial cultivation of mushrooms such as shiitake, shimeji and nameko. The present invention relates to a method for infiltrating a liquid into a medium.

[0002]

2. Description of the Related Art In the artificial cultivation of mushrooms such as shiitake mushrooms, shimeji mushrooms and nameko mushrooms, a mushroom cultivation medium 10 formed in a lump of required size as shown in FIG. 6 is used.
The culture medium 10 for mushroom cultivation is formed by mixing a culture material such as sawdust, corn cob, rice bran and the like with a liquid such as water, and pressing the mixture into a required-sized lump.

[0003] This mass-formed mushroom cultivation medium 1
In the case of performing artificial cultivation of mushrooms using No. 0, the mushroom cultivation medium 10 formed in a lump is inoculated with mycelium of mushrooms such as shiitake mushrooms, shimeji, nameko, and the like. Spreading mycelia of mushrooms. A mushroom fungus bed layer (not shown) is formed on the peripheral surface of the mushroom cultivation medium 10. Then, mushrooms such as shiitake mushrooms, shimeji mushrooms, nameko mushrooms, etc. are germinated from the fungal bed layer of the mushrooms, and the mushrooms grow greatly before being harvested using the mushroom cultivation medium 10.

[0004] This mushroom cultivation medium 1 formed in a lump
When performing artificial cultivation of mushrooms such as shiitake mushrooms, shimeji mushrooms, and mushrooms as described above using 0, a mass-formed mushroom cultivation medium used at least once for the artificial cultivation of the mushrooms 10 is repeated twice or more and reused for artificial cultivation of the same mushrooms. The reason is that the nutrients available for artificial cultivation of mushrooms still remain in the mushroom cultivation medium 10 formed in a lump used at least once for artificial cultivation of mushrooms. This is because, if water or the like is supplied to the medium 10, the medium 10 returns to a state suitable for artificial cultivation of mushrooms.

[0005] When the mushroom cultivation medium 10 formed in a lump and dried out of a liquid such as water used for artificial cultivation of mushrooms at least once is reused for artificial cultivation of mushrooms, A liquid 20 such as water or an aqueous solution containing a disinfectant or a nutrient is infiltrated into a massive mushroom culture medium 10 used for artificial cultivation of the mushrooms.
Then, the mushroom cultivation medium 10 is restored to the mushroom cultivation medium 10 which sufficiently contains water and nutrients suitable for artificial cultivation of the same mushrooms.

[0006] Water or a liquid 20 such as an aqueous solution containing a disinfectant or a nutrient is impregnated into a mushroom cultivation medium 10 used at least once for artificial cultivation of the mushrooms, and the mushroom cultivation medium 10 is used as a mushroom. Conventionally, when reviving to a mushroom cultivation medium suitable for artificial cultivation, as shown in FIG. 7, a liquid such as water or an aqueous solution containing a disinfectant or a nutrient penetrating the mushroom cultivation medium 10 is used. A lump-shaped mushroom cultivation medium 10 used for artificial cultivation of mushrooms at least once is put in a container 30 containing 20 and the mushroom cultivation medium 10 is immersed in the liquid 20 in the container 30. are doing. Then, a liquid 20 such as water or an aqueous solution containing a disinfectant or a nutrient is infiltrated into the mushroom cultivation medium 10.

[0007]

However, as described above, the mushroom cultivation medium 10 used one or more times for artificial cultivation of mushrooms is simply immersed in the liquid 20 in the container 30, and the mushroom cultivation is performed. When the liquid 20 such as water or an aqueous solution containing a disinfectant or a nutrient is infiltrated into the culture medium 10 for use,
It took about half a day for the liquid 20 such as water or an aqueous solution containing a disinfectant or a nutrient to penetrate the mushroom cultivation medium 10 completely and completely. Therefore, the work of infiltrating the liquid 20 into the mushroom cultivation medium 10 hinders the speed of the artificial mushroom cultivation work.

[0008] As means for solving such problems, conventionally, the above-mentioned liquid 2 in which a mushroom culture medium 10 is immersed is used.
0 is sealed in the opening 32 of the container in which the container 3 is stored.
0, the outside air is forcibly fed, and the liquid 20 in the container 30 is permeated into the mushroom cultivation medium 10 immersed in the liquid 20 in the container 30 while maintaining the pressure in the container 30 higher than the atmospheric pressure. Methods are known.

According to this method, the upper surface of the liquid 20 contained in the container 30 is pressed at a pressure higher than the atmospheric pressure, and the mushroom cultivation immersed in the liquid 20 in the container 30 is performed using the pressing force. The liquid 20 in the container 30 can be forcibly penetrated into the culture medium 10 for use.

However, according to this method, even when the liquid 20 contained in the container 30 is forcibly infiltrated into the mass-formed mushroom cultivation medium 10, the mushroom cultivation medium 10 still has a container. The liquid 20 in the container 30 could not be quickly and uniformly penetrated, or it took several hours to evenly penetrate the liquid 20 in the container 30 into the mushroom cultivation medium 10.

The reason is as described above,
The upper surface of the liquid 20 accommodated in the container 30 is pressed at a pressure higher than the atmospheric pressure, and the pressing force is used to
When the liquid 20 in the container 30 is forcibly infiltrated into the mushroom cultivation medium 10 immersed therein, air still remains in a space where the liquid 20 in the mushroom cultivation medium 10 is to be penetrated. Because. And the air is in the container 3
This is because the liquid 20 in the container 30 is prevented from entering the empty space in the culture medium 10 for mushroom cultivation immersed in the liquid 20 in the liquid 0.

The present invention can solve such a problem.
A liquid such as water or an aqueous solution containing a disinfectant or a nutrient can be easily poured into a dry mushroom cultivation medium in which liquid such as water used once or more for artificial cultivation of mushrooms escapes and is dried. It is an object of the present invention to provide a method for liquid infiltration into a mushroom cultivation medium (hereinafter, referred to as a liquid infiltration method) that can be rapidly and evenly infiltrated.

[0013]

Means for Solving the Problems In order to achieve the above object, a liquid permeation method of the present invention is a method for liquid permeation into a bulky mushroom cultivation medium, which comprises the following steps. It is characterized by. a. A step of placing the mass-formed mushroom cultivation medium in a container containing a liquid to be penetrated into the mushroom cultivation medium, and dipping the mushroom cultivation medium in the liquid in the container. b. After sealing the opening of the container, the air in the container is sucked out of the container and eliminated, and the pressure in the container is reduced to a pressure lower than the atmospheric pressure, for the cultivation of the mass formed mushrooms. A step of permeating the liquid in the container into the medium.

In this liquid permeation method, in the step b, the air in the container in which the opening of the container is sealed is sucked out of the container to be eliminated, and the pressure in the container is reduced below the atmospheric pressure. At that time, the air in the atmospheric pressure state remaining in the space in the mushroom cultivation medium formed in a lump immersed in the liquid in the container is lower than the atmospheric pressure from the space in the mushroom cultivation medium It comes out of the mushroom cultivation medium in a decompressed state. The air that has escaped to the outside of the mushroom cultivation medium passes through the liquid in the container and is removed to the space in the container that has been reduced in pressure below the atmospheric pressure. Then, instead of air, the liquid in the container in which the mushroom cultivation medium is immersed enters the void in the mushroom cultivation medium in a state where the air has escaped.

As a result, the liquid in the container can be easily and quickly penetrated into the vacant space formed in the mushroom cultivation medium immersed in the liquid in the container without being disturbed by the air. Can be. In other words, the liquid in the container can be quickly and uniformly penetrated into the mushroom cultivation medium formed in a lump immersed in the liquid in the container without taking time.

In the liquid permeation method of the present invention, a hole is opened through the mushroom bed layer covering the peripheral surface of the mass-formed mushroom cultivation medium used for artificial cultivation of mushrooms. Preferably, the mushroom cultivation medium is immersed in the liquid in the container.

In this liquid permeation method, a dense layered mushroom bed layer which covers the peripheral surface of a mass-formed mushroom cultivation medium used for artificial cultivation of mushrooms is not disturbed. The liquid in the container can be permeated into the mushroom cultivation medium immersed in the liquid in the container through a hole opened through the bacterial bed layer through the layer.

In the liquid permeation method of the present invention,
The lump-shaped mushroom cultivation medium is accommodated in a net basket with an openable and closable net lid immersed in the liquid in the container, and the mushroom cultivation medium accommodated in the net basket is contained in the container. It is preferable to prevent the liquid from floating above the inside of the liquid.

In this liquid permeation method, a liquid medium such as water escapes, and a mushroom cultivation medium formed in a lump having a specific gravity lighter than that of the liquid in the container rises above the liquid in the container. Can be prevented by a net basket with a net lid immersed in a liquid in a container, the net basket containing a culture medium for mushroom cultivation. Then, the lump-shaped mushroom cultivation medium can be continuously immersed completely in the liquid in the container, and the liquid in the container can evenly penetrate throughout the mushroom cultivation medium. it can.

Further, since the net basket with the net lid containing the culture medium for mushroom cultivation has a structure in which the liquid in the container can freely enter and exit through the mesh, the net basket with the net lid is obstructed by the net basket with the net lid. Instead, the liquid in the container can enter the net basket with the net lid. Then, the liquid in the container can be permeated into the culture medium for mushroom cultivation accommodated in the net basket with the net lid without being disturbed by the net basket with the net lid.

After the liquid in the container is infiltrated into the culture medium for mushroom cultivation, the openable and closable mesh lid is opened, and the medium for mushroom cultivation impregnated with the liquid in the container is filled with a net basket with a mesh lid. Can be taken from inside. Then, the next culture medium for cultivating mushrooms to be infiltrated with the liquid in the container can be stored again in the net basket with the net lid.

Alternatively, in the liquid permeation method of the present invention,
Mushroom cultivation immersed in the liquid below the mesh lid by covering the upper part of the mass-formed mushroom cultivation medium immersed in the liquid in the container with a mesh lid immersed in the liquid in the container. It is preferable to prevent the culture medium for use from floating above the liquid in the container.

In this liquid infiltration method, a liquid medium such as water escapes, and a mushroom cultivation medium formed in a lump having a specific gravity lower than that of the liquid in the container rises above the liquid in the container. Can be prevented by a net lid that covers the upper part of the mushroom cultivation medium immersed in the liquid in the container.
Then, it is possible to continuously immerse the mushroom cultivation medium formed in the lump in the liquid in the container thoroughly, and to infiltrate the liquid in the container evenly throughout the mushroom cultivation medium. it can.

[0024] Further, since the mesh lid that covers the upper part of the mushroom cultivation medium has a structure in which the liquid in the container can freely pass through the mesh, the mesh lid is not obstructed by the mesh lid, and is not hindered by the mesh lid. The liquid in the container can penetrate downward. And the liquid in the container in the mushroom cultivation medium immersed in the liquid below the mesh lid, without disturbing the mesh lid,
Can be infiltrated.

Alternatively, in the liquid permeation method of the present invention,
The container is filled with the liquid up to the opening of the container, and the mass-formed mushroom cultivation medium immersed in the liquid in the container floats upward from the liquid in the container. It is preferable to prevent such a situation.

In this liquid infiltration method, the mushroom cultivation medium formed in a lump immersed in the liquid in the container rises above the liquid in the container and rises in the container surrounding the liquid. It can be pushed back into the liquid in the container by the inner surface and the inner surface of the lid to prevent it. Then, the lump-shaped mushroom cultivation medium can be continuously immersed completely in the liquid in the container, and the liquid in the container can evenly penetrate throughout the mushroom cultivation medium. it can.

[0027]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a preferred embodiment of the liquid permeation method of the present invention, and FIG. Hereinafter, this liquid permeation method will be described.

In the liquid infiltration method shown in the figure, as shown in FIG. 1, a water-disinfectant or a nutrient to be infiltrated into the mushroom cultivation medium 10 is contained in a bottomed cylindrical vessel 30 having a wide open upper end. The liquid 20 such as an aqueous solution is placed in the space 3 above the container 30.
4 is opened and a predetermined amount is accommodated. Then, the mushroom cultivation medium 10 formed in a lump is put into the container 30 from the opening 32 at the upper end of the container, and the mushroom cultivation medium 1
0 is immersed in the liquid 20 contained in the container 30.

Next, the opening 32 at the upper end of the container is
0 to seal the opening 32 of the container.

Thereafter, the air inlet 42 provided in the lid 40
, The air in the container 30 is sucked out of the container 30 and eliminated. Then, the pressure in the container 30 is reduced to a value lower than the atmospheric pressure, and the liquid 20 in the container 30 is penetrated into the mushroom cultivation medium 10 formed in a lump immersed in the liquid 20 in the container 30.

The liquid permeation method shown in FIG. 1 includes the above steps. In this liquid permeation method, the opening 32 at the upper end of the container is sealed with a lid 40, air in the container 30 is sucked out of the container 30 to be eliminated, and the air pressure in the container 30 is reduced below atmospheric pressure. The liquid 2 in the container 30
Mushroom cultivation medium 10 formed in a lump immersed in water
The air in the atmospheric pressure state remaining in the empty space inside can be discharged to the outside of the mushroom cultivation medium 10 in a reduced pressure lower than the atmospheric pressure. Mushroom cultivation medium 10
The air that has escaped to the outside of the container 3 passes through the liquid 20 in the container 30,
It can be eliminated in the space 34 in the upper part of 0. Then, instead of air, the liquid 20 in the container 30 in which the mushroom cultivation medium 10 is immersed can be made to enter into the space in the mushroom cultivation medium 10 from which the air has escaped.

As a result, the liquid 20 in the container 30 is immersed in the vacant space in the mushroom cultivation medium 10 formed in a lump immersed in the liquid 20 in the container 30 without being obstructed by the air.
Can be easily and quickly penetrated. Then, the liquid 20 in the container 30 can be easily and quickly penetrated uniformly into the medium for mushroom cultivation 10 formed in a lump immersed in the liquid 20 in the container 30 without taking time.

In this liquid permeation method, as shown in FIG. 2, when the mass-formed mushroom cultivation medium 10 is used one or more times for artificial cultivation of mushrooms,
After a hole 52 is opened through the mushroom bed layer 50 covering the peripheral surface of the mushroom cultivation medium 10, the mushroom cultivation medium 10 is preferably immersed in the liquid 20 in the container 30. Then, a dense layered mushroom bed layer 5 covering the peripheral surface of the lump-shaped mushroom cultivation medium 10 is formed.
The liquid 20 in the container 30 is permeated into the mushroom cultivation medium 10 immersed in the liquid 20 in the container 30 through the hole 52 opened through the fungal bed layer 50 without being disturbed by the liquid. And good.

In the above-described liquid permeation method, as shown in FIG. 3, an openable and closable mesh lid 62 is formed by immersing a mass-formed mushroom cultivation medium 10 in a liquid 20 in a container 30. It is good to house it in the net basket 60. And
As the liquid such as water escapes, the mushroom cultivation medium 10 formed in a lump having a specific gravity lower than that of the liquid 20 in the container 30 rises from the liquid 20 in the container 30 to above.
A mesh basket 60 with a mesh lid 62 immersed in the liquid 20 in the container 30, the mesh basket 6 containing the mushroom cultivation medium 10.
It is good to prevent it by the net basket 60 with two. Then, the mushroom cultivation medium 10 formed in a lump is continuously immersed in the liquid 20 in the container 30 without exhaustion, and the liquid 20 in the container 30 is completely immersed throughout the mushroom cultivation medium 10. It is good to make it penetrate evenly. Further, the liquid 20 in the container 30 may freely enter and exit the basket 60 with the mesh lid 62 through the mesh of the mesh basket 60 with the mesh lid 62 containing the mushroom cultivation medium 10. Then, without being hindered by the net basket 60 with the net lid 62,
The liquid 20 in the container 30 may be penetrated into the mushroom cultivation medium 10 housed therein. In addition, medium 1 for mushroom cultivation
After the liquid 20 in the container 30 is infiltrated into the container 0, the openable mesh cover 62 is opened, and the culture medium 10 for mushroom cultivation in which the liquid 20 in the container 30 is infiltrated is filled with a net basket 60 with the mesh cover 62.
Take it out from inside. Then, the liquid 20 in the container 30
The next culture medium 10 for cultivating mushrooms to be infiltrated with
It is good to re-contain the inside of the net basket 60 with two.

Alternatively, in the above-described liquid infiltration method, as shown in FIG. 4, the upper part of the bulky mushroom cultivation medium 10 immersed in the liquid 20 in the container 30 is placed in the liquid in the container 30. It is preferable to cover with a net cover 70 immersed in the wire 20.
Then, as the mushroom cultivation medium 10 formed in a lump having a specific gravity lighter than that of the liquid 20 in the container 30 due to the escape of the liquid such as water rises upward from the liquid 20 in the container 30, It is good to prevent by the net lid 70 which covers the upper part of the mushroom cultivation culture medium 10 immersed in the liquid 20. Then, the mass-formed mushroom cultivation medium 10 is placed in the container 3.
It is preferable that the liquid 20 in the container 30 be uniformly immersed throughout the mushroom cultivation medium 10 by continuing to immerse the liquid 20 in the liquid 20 completely. Further, the mesh cover 7 covering the upper part of the mushroom cultivation medium 10 is passed through the mesh of the mesh cover 70.
0, the liquid 20 in the container 30 is freely passed therethrough, and the container 3 is immersed in the liquid 20 below the mesh cover 70 without being disturbed by the mesh cover 70.
It is good to make the liquid 20 in 0 permeate.

Alternatively, in the above liquid permeation method, as shown in FIG. 5, the liquid 20 may be filled in the container 30 up to the opening 32 of the container. And container 3
The floating of the mushroom cultivation medium 10 formed in a lump immersed in the liquid 20 in the container 20 from the liquid 20 in the container 30 to the inside of the container 20 surrounding the liquid 20 and the lid 40 May be pushed back into the liquid 20 in the container 30 by the inner side surface of the container 30 to prevent it. Then, the mushroom cultivation medium 10 formed in a lump is continuously immersed completely in the liquid 20 in the container 30, and the liquid 20 in the container 30 is uniformly distributed throughout the mushroom cultivation medium 10. It may be permeated without.

Next, experimental results of the above-described liquid permeation method will be described. In the experiment, the diameter was about 100 mm and the length was about 400 m
m, a mushroom cultivation medium 10 formed in a substantially columnar shape, and about 700 g of a mushroom cultivation medium 10 in which a liquid such as water used for artificial cultivation of mushrooms is drained and dried. . A hole 52 having a diameter of about 2 mm and a depth of about 10 mm is formed in the fungal bed layer 50 covering the peripheral surface of the mushroom cultivation medium 10 used for artificial mushroom cultivation.
, And a total of 40 spots were opened. Then, the mushroom cultivation medium 10 was immersed in water in the container 30.
Next, the opening 32 of the container was sealed with a lid 40, and the pressure in the container 30 was reduced to about 250 mm / Hg. Then, after about one minute had elapsed, the weight of the mushroom cultivation medium 10, whose weight had dropped to about 700 g, in which the liquid such as water had escaped and was dried, increased to about 1500 g. That is, a large amount of about 800 g (cc) of water permeated the mushroom cultivation medium 10 in the above-mentioned dried state uniformly within a short time of about 1 minute or less. According to the experimental results, according to the liquid permeation method of the present invention, the liquid 20 such as water was very shortly added to the mushroom cultivation medium 10 in which the liquid such as water used for the artificial cultivation of the mushrooms came out and was dried. It has been found that it can be easily and quickly evenly distributed in time.

According to the experiment, mushroom cultivation medium 1
During the time required for the liquid 20 in the container 30 to uniformly penetrate into the container 30, the pressure in the container 30 in a state where the opening 32 of the container is closed by the lid 40 is significantly lower than the atmospheric pressure, It has been found that the pressure can be adjusted to be shorter or longer by reducing the pressure to a state close to the atmospheric pressure.

In the above-described liquid permeation method, the container 30 may be made of a soft member such as a synthetic resin in addition to a member made of a hard member such as a metal. When the container 30 made of a flexible member is used in the above-described liquid permeation method, the opening 32 of the container is folded into a string or the like, leaving an intake port (not shown), and the container is closed. The opening 32 may be sealed using a part of the container 30 without using the lid 40. Even in such a case, the liquid 2 in the container 30 is added to the culture medium 10 for mushroom cultivation immersed in the liquid 20 in the container 30 in the same manner as in the liquid permeation method described above.
0 can be easily and quickly penetrated uniformly.

According to the liquid permeation method of the present invention, in addition to the mushroom cultivation medium 10 used once or more for artificial mushroom cultivation, a disinfectant or nutrient The present invention is also applicable to a case where the liquid 20 such as an aqueous solution containing an agent is made to permeate. Also in this case, the liquid 20 can be easily and quickly penetrated uniformly into the unused mushroom cultivation medium 10.

[0041]

As described above, according to the liquid infiltration method of the present invention, a liquid such as water used for artificial cultivation of mushrooms at least once is formed into a lump which is in a dry state. The culture medium or mushroom cultivation medium which is not used for artificial cultivation of mushrooms is added to a medium such as water or an aqueous solution containing a disinfectant or a nutrient contained in a container without taking a long time. It can be easily and quickly penetrated evenly. And the operation of reviving or forming the mushroom cultivation medium into a mushroom cultivation medium suitable for artificial cultivation of mushrooms such as shiitake mushrooms, shimeji mushrooms and nameko mushrooms can be greatly accelerated.

[Brief description of the drawings]

FIG. 1 is a process explanatory view of a liquid permeation method of the present invention.

FIG. 2 is a perspective view of a culture medium for mushroom cultivation used in the liquid permeation method of the present invention.

FIG. 3 is an explanatory view of a process of the liquid permeation method of the present invention.

FIG. 4 is a process explanatory view of the liquid permeation method of the present invention.

FIG. 5 is an explanatory view of a process of the liquid permeation method of the present invention.

FIG. 6 is a perspective view of a culture medium for cultivating mushrooms formed in a lump.

FIG. 7 is a process explanatory view of a conventional liquid permeation method.

[Explanation of symbols]

 Reference Signs List 10 Mushroom cultivation medium formed in a mass 20 Liquid such as water or an aqueous solution containing a disinfectant or nutrient 30 Container 32 Opening of container 34 Space in container 40 Lid 42 Inlet port 50 Mushroom bed 52 of mushroom Hole 60 Net cage with net lid 62 Net lid 70 Net lid

Claims (5)

[Claims] 1. A method for infiltrating a mass of mushroom cultivation medium with a liquid, the method comprising the following steps: a. A step of placing the mass-formed mushroom cultivation medium in a container containing a liquid to be penetrated into the mushroom cultivation medium, and dipping the mushroom cultivation medium in the liquid in the container. b. After sealing the opening of the container, the air in the container is sucked out of the container and eliminated, and the pressure in the container is reduced to a pressure lower than the atmospheric pressure, for the cultivation of the mass formed mushrooms. A step of permeating the liquid in the container into the medium. 2. A mushroom cultivation medium, which is used for artificial cultivation of mushrooms, is formed in a mushroom bed layer that covers the peripheral surface of a mushroom bed layer. The method for infiltrating a mushroom cultivation medium with a liquid according to claim 1, wherein the liquid is immersed in the liquid in the container. 3. The mushroom cultivation medium formed in a lump, wherein the lump-shaped medium for cultivating mushrooms is accommodated in a net basket having an openable and closable mesh lid immersed in a liquid in the container. 3. The method for infiltrating a culture medium for mushrooms according to claim 1 or 2, wherein the culture medium for culture is prevented from floating above the liquid in the container. 4. An upper portion of the mass-formed mushroom cultivation medium immersed in the liquid in the container is covered with a mesh lid immersed in the liquid in the container, and the liquid under the mesh lid is covered with the mesh lid. The method for infiltrating a mushroom cultivation medium into a liquid according to claim 1 or 2, wherein the mushroom cultivation medium immersed in the container is prevented from floating above the liquid in the container. 5. The container is filled with a liquid up to the opening of the container and filled with the liquid, and the lump-shaped medium for cultivating mushrooms immersed in the liquid in the container is filled with the liquid in the container. 3. The method for infiltrating liquid into a mushroom cultivation medium according to claim 1, wherein the liquid is prevented from floating above the medium.