JP2007003116A - Method for making ice - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for making ice including an additive uniformly. <P>SOLUTION: A prepared raw material solution 1 is poured into 16 ice-making containers 2 immersed into a refrigerant solution 3 in a stainless steel refrigerant container 4 surrounded by gas piping 5. At this time, a temperature of the raw material solution is about 30 to 100°C. The temperature of the refrigerant solution is about -25 to -50°C, and the refrigerant solution mainly consists of mono-ethylene glycol. A motor 6 is arranged under the refrigerant container 4, the refrigerant container is rotated by the motor, and the refrigerant solution is made to flow. Further, the refrigerant solution is made to flow in accordance with the flow of gas flowing in the gas piping. The ice-making container into which the raw material solution is poured is immersed into the refrigerant solution for about four to five hours. After it is confirmed that the raw material solution is solidified, the solidified raw material solution is taken out of the ice-making container 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a method for producing ice. Specifically, the present invention relates to a method for producing ice that cools water containing additives such as pigments and sweeteners.

  With the diversification of consumer needs, there is an increasing demand for so-called additive-containing ice that is colored or flavored.

  By the way, in order to produce ice containing such an additive, when water containing the additive is put in an ice making container or the like and cooled from the outside, ice crystals gradually grow while excluding the additive. It was difficult to produce ice in which the additive was unevenly distributed and the additive was uniformly dispersed.

  Accordingly, various techniques have been proposed to produce ice in which the additive is uniformly dispersed. For example, Patent Document 1 discloses a spray tube 104 at the center of an ice making can 101 immersed in a cooling refrigerant 103. A freezing plate in which raw water 107 is pumped from a water tank 106 to a spray pipe by a pump 108, water is sprayed out from a nozzle 105 attached around the spray pipe, and fine water droplets are the inner surface of the can It is described that it adheres to 102 and freezes, and an ice layer 109 is formed on the inner surface of the ice making can. The finished ice contains minerals and additives uniformly. FIG. 3 shows a schematic view of an apparatus for carrying out a conventional method for producing ice.

JP 2005-3346 A

  However, in the conventional method, the additives are not sufficiently uniform, and since a spray tube or the like is used, there are problems such as an increase in the size of the apparatus and an increase in manufacturing cost.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a method capable of producing ice containing an additive uniformly.

  In order to achieve the above object, the method for producing ice according to the present invention is a method for producing ice, in which a raw material liquid containing water and an additive is cooled by a cooling body having a temperature below the freezing point. The additive having a temperature lower than the temperature of is added to the water.

  Here, by adding an additive having a temperature lower than the temperature of water to the water, the additive is more active in the water due to the difference in temperature between the two than in the case of using normal temperature water and the additive. It can flow, and the greater the temperature difference, the more active the flow.

  In addition, in order to achieve the above object, the method for producing ice of the present invention is a container in which a raw material liquid of about 1 to 100 ° C. containing water and additives is immersed in a liquid of −25 to −50 ° C. And adding the additive at about 15 to 20 ° C. to the water at about 35 to 100 ° C.

  Here, by adding an additive at about 15 to 20 ° C. to water at about 35 to 100 ° C., both of the additives are submerged in water due to a temperature difference between the two, compared to the case of using normal temperature water and the additive. Can actively flow.

  The method for producing ice according to the present invention can produce ice containing an additive uniformly.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings to facilitate understanding of the present invention. FIG. 1 is a flowchart showing an outline of an ice manufacturing method to which the present invention is applied, and FIG. 2 is a schematic cross-sectional view showing an example of an apparatus used when carrying out an ice manufacturing method to which the present invention is applied. It is.

  An embodiment of an ice production method to which the present invention is applied will be described with reference to FIGS. 1 and 2. First, about 32 kg of water is heated with a heater for 30 to 40 minutes to raise the water temperature to about 35 to 100 ° C. (step S1). Next, about 1.8 kg of sweetened condensed milk, skim milk powder, and vegetable oil and fat are added to the heated water as an additive, and about 500 g of sugar is also added to prepare the raw material liquid 1 (step S2). At this time, the temperature of the additive is lower than the temperature of the heated water and is about 15 to 20 ° C. Then, the prepared raw material liquid 1 is put into each of 16 ice making containers 2 immersed in a freezing liquid 3 (an example of a cooling body) of a stainless steel freezing container 4 around which a gas pipe 5 is disposed (step). S3). At this time, the temperature of the raw material liquid is about 30 to 100 ° C. At this time, the ice making container containing the raw material liquid is immersed in the frozen liquid for about 8 minutes without being immersed in the frozen liquid. The temperature of the frozen liquid is about −25 to −50 ° C., and the frozen liquid is mainly composed of monoethylene glycol. The temperature difference between the temperature of the raw material liquid and the temperature of the frozen liquid can be at least 25 ° C., preferably 50 to 100 ° C. In addition, a motor 6 is disposed below the freezing container 4, and the freezing container is rotated by this motor to flow the frozen liquid. Moreover, a frozen liquid is made to flow according to the flow of the gas which flows through gas piping. Immerse the ice-making container containing the raw material solution in the freezing solution for about 4-5 hours. Then, after confirming that the raw material liquid has hardened, the solidified raw material liquid (ice block) is taken out from the ice making container 2 (step S4).

  The obtained ice block is a hard ice with a mass of about 16 kg and a uniform milky white color as a whole, and a uniform taste at any part. When the resulting ice block is put into an ice cutter and the ice is cut, it is cut into a thin skin. The state of being cut into a thin skin can be understood more easily by referring to FIG.

  Here, if an additive having a temperature lower than the temperature of water is added to water, the amount of water and additive used for preparing the raw material liquid, the temperature of the water and additive used for the raw material liquid, The temperature of the raw material liquid to be cooled and the temperature of the frozen liquid are not limited to the above values. For example, the temperature of the raw material liquid to be cooled may be about 1 to 100 ° C. There is no particular limitation on the water used to prepare the water, and for example, tap water, ion-exchanged water, distilled water, seawater, etc. may be used.

  In addition, if an additive having a temperature lower than the temperature of water is added to water, it is not always necessary to add sweetened condensed milk, skim milk powder and vegetable oil as additives, for example, liquid and solid, A pigment, fruit juice, preservative, alcohol (whiskey, shochu, sake, etc.), soup extract, coffee extract, black tea extract, oolong tea extract and the like may be added.

  Furthermore, if an additive having a temperature lower than the temperature of water is added to water, ice produced by a production method to which the present invention is applied may be separately mixed with the raw material liquid to produce ice. Good.

  Further, if an additive having a temperature lower than the temperature of water is added to water, the raw material liquid does not necessarily have to be put into an ice making container, and may be put into, for example, an ice making can or an ice making tray.

  In addition, if an additive having a temperature lower than the temperature of water is added to water, it is not always necessary to use a frozen solution. For example, a cooling gas such as nitrogen or argon gas is sprayed onto an ice making container to prepare a raw material solution. The raw material liquid may be cooled by bringing a solid refrigerant such as dry ice into contact with the ice making container. In addition, if the raw material liquid containing water and additives and having a temperature higher than normal temperature can be cooled by a cooling body having a temperature below the freezing point, the frozen liquid may not necessarily be a liquid mainly composed of monoethylene glycol. .

  In addition, if an additive having a temperature lower than the temperature of water is added to water, it is not always necessary to rotate the freezing container by a motor to cause the freezing liquid to flow. It is not necessary to arrange in.

  In addition, if an additive having a temperature lower than the temperature of water is added to water, the temperature difference between the temperature of the raw material liquid and the temperature of the cooling body is not necessarily at least 25 ° C.

  In this way, when preparing a raw material liquid containing water and an additive, an additive having a temperature lower than the temperature of water is added to water, both of which are compared to the case of using room temperature water and the additive. However, due to the temperature difference between the additives, the additives can actively flow in water, and the additives are uniformly dispersed in the raw material liquid.

  Further, since the temperature difference between the temperature of the raw material liquid and the temperature of the frozen liquid is at least 25 ° C., the flowability of the raw material liquid due to the temperature difference is good and precipitation is not easily generated.

  Furthermore, since the frozen liquid which is a liquid is used as the cooling body, the ice making container can be wrapped and the raw material liquid can be uniformly cooled.

  Moreover, since ice can be manufactured without using a conventional spray tube or the like, it is possible to reduce the size of the apparatus and reduce the manufacturing cost.

  In addition, when soup extract is added as an additive, it is possible to produce ice in which the additive is evenly dispersed. Will not change.

It is a flowchart which shows the outline of the manufacturing method of the ice to which this invention is applied. It is the schematic sectional drawing which showed an example of the apparatus used when implementing the manufacturing method of the ice to which this invention is applied. It is the schematic of the apparatus which enforces the manufacturing method of the conventional ice.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Raw material liquid 2 Ice making container 3 Freezing liquid 4 Freezing container 5 Gas piping 6 Motor

Claims (4)

A method for producing ice, in which a raw material liquid containing water and additives is cooled by a cooling body having a temperature below the freezing point,
A method for producing ice, wherein the additive having a temperature lower than the temperature of the water is added to the water. The method for producing ice according to claim 1, wherein a temperature difference between the temperature of the raw material liquid and the temperature of the cooling body is at least 25 ° C. The method for producing ice according to claim 1, wherein the cooling body is a liquid. A method for producing ice, wherein a raw material liquid containing about 1 to 100 ° C. containing water and additives is placed in a container immersed in a liquid at −25 to −50 ° C., and the raw material liquid is cooled.
A method of making ice, wherein an additive at about 15-20 ° C is added to water at about 35-100 ° C.

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