WO2016004885A1

WO2016004885A1 - Pressure filtering tea box

Info

Publication number: WO2016004885A1
Application number: PCT/CN2015/083675
Authority: WO
Inventors: 陆锦才; 张莲琴; 徐晓挺
Original assignee: 上海和锦咖啡科技有限公司
Priority date: 2014-07-09
Filing date: 2015-07-09
Publication date: 2016-01-14

Abstract

A filtering tea box, particularly a pressure filtering tea box comprising a tea box body (11); the bottom portion of the tea box body (11) is provided with a pressure filter film (12); the tea box body (11) is filled with a fixed quantity of tea leaves; the upper portion of the tea box body is provided with a tea box cover (13); the bottom portion of the tea box body (11) is provided with a plurality of reinforcing ribs and through holes; and the tea box cover (13) is provided with a plurality of through holes to form the pressure filtering tea box. The tea raw material filling the pressure filtering tea box comprises various water-soluble or water-absorbing solid raw materials, and the raw materials are placed in the pressure filtering tea box. The extraction process comprises running purified water under a constant temperature and a constant pressure so as to realize an instant extraction instead of an immersion extraction, such that a water-soluble substance in the object to be prepared is stably and continuously separated out, and a water-insoluble impurity is blocked by the filter film.

Description

Pressure filter tea box

Technical field

The present invention relates to a filter tea box, and more particularly to a pressure filter type tea box.

Background technique

The existing methods of making tea mainly include the following:

The first type, brewing tea (also called tea), is to put the tea leaves into a container and rush in with boiling water or hot water cooled to a certain temperature, and the tea leaves slowly precipitate nutrients in the hot water soaking. However, the main problem is that the temperature of the hot water is continuously decreasing during the whole process, and the constant temperature cannot be maintained, which hinders the precipitation of nutrients, and the water-soluble and water-insoluble impurities remaining in the tea production process are mixed. Among the tea.

Secondly, the tea drinking method of Chinese Kung Fu tea is to put the tea into a container, flush it with boiling water or hot water cooled to a certain temperature, and pour the first bubble of tea, called "washing tea", and then Rinse with boiling water or hot water cooled to a certain temperature, soak it in time, and pour it into the cup through the filter. However, the main problems are as follows: 1. Although washing tea can wash away some of the water-soluble and water-insoluble impurities, there is still a part left on the surface of the tea when pouring tea, and it is impossible to carry out thorough cleaning. 2. Although the tea brewed after washing the tea passes through the filter net, but because it is only filtered by the gravity of the water, the filter screen cannot be too dense, otherwise the filtration effect will be affected, so the fine impurity particles will still be suspended in the tea through the filter screen. in. 3, the water temperature of the tea should not be precisely controlled, affecting the precipitation of nutrients in the tea.

Third, using a net-type tea cup to brew tea, the tea leaves are placed in a filter hood of the container for brewing. The main problem is also similar to the tea drinking method of the second type of kungfu tea mentioned above, because the filter net of the net cover cannot be too fine and too dense, otherwise the excessively dense mesh cover will affect the flow rate of the tea and cause the tea to be incapable of being brewed, and the ordinary net The cover is unable to block fine suspended particles.

The fourth type, teabag, is to smash the tea into a filter paper bag and soak it together with the paper bag. The whole tea making process is that the hot water gradually penetrates into the paper bag to extract the tea leaves. However, the main problems are as follows: 1. The filter paper bag should not be too dense, too dense and not easy to penetrate by water, and not dense, and the powder of tea leaves and other fine particles will overflow the paper bag during soaking. 2. The water that penetrates into the paper bag only has no flow speed, and the fluidity is poor. The process of ingesting the nutrients in the tea is slow, except that the tea leaves filled in the paper bag need to be crushed. Usually, the tea bag needs to be constantly shaken when drinking tea, so that the tea leaves can accelerate the nutrition. Precipitate.

Summary of the invention

The invention is an improvement of the above traditional tea making method, so that the tea making process is carried out in a constant temperature flowing water with a certain pressure, and the method of filtering or gravity filtering is used in the past, and the method of filtering by gravity is adopted. Use an effective filter membrane to block very fine particulate impurities, make the tea more pure, and use a constant temperature water after pressurization Making tea is more conducive to the intake of effective nutrients in tea.

The invention provides a tea material box which has a fine filtering function and can withstand high temperature under pressure.

A specific technical solution of the present invention is a pressure filtering type tea material box, comprising a tea box body 11 , a pressure filtering film 12 is arranged at the bottom of the tea box body, and the quantitative tea leaves are filled in the tea box body, in the tea A tea box lid 13 is arranged on the upper part of the box body. The bottom of the tea box body 11 is provided with a plurality of reinforcing ribs and through holes, and the tea box lid 13 is provided with a plurality of through holes to form a pressure filtering type tea box.

Further, the pressure filter membrane has a pore size of 2 to 10 um.

Further, the tea box lid 13 is welded by ultrasonic pressure on the upper portion of the tea box body.

Further, the tea leaves filled in the tea box body include a water-soluble and water-extracted beverage variety covered by the tea drinking method.

Further, the water-soluble and water-extracting beverages are beverage raw materials or dried fruit raw materials directly brewed in boiling water, or raw materials obtained by boiling.

Further, the raw material of the beverage directly brewed by boiling water mentioned above is an instant powder made of lemon, fig and dried orange.

Further, the dried fruit raw materials directly brewed by boiling water are medlar, lotus seed core, mangosteen, and licorice.

Further, the raw materials ingested by the above-mentioned cooking are American ginseng, Cordyceps, and Panax notoginseng.

The pressure filter type tea material box of the invention is used as follows:

First push the pressure filter type tea box into the positioning mechanism of the tea box, start the water pump, and the clean water in the water tank enters the pressure water tank to press the beverage box between the boiler and the pressure water tank. When the pressure reaches P1, the pressure is passed. Adjust the pressure valve, the clean water in the water tank enters the boiler. When the pressure in the boiler reaches P2, the purified water that has been warmed to the set temperature will enter the tea box body through the small hole in the lid of the tea box, tea The constant pressure and high pressure state is presented in the box. When the pressure is greater than P3, the tea or beverage produced passes through the filter membrane and continuously flows out from the tea outlet.

The invention has the beneficial effects that: the "tea raw material" filled in the invention covers various water-soluble or water-intake solid raw materials, and the raw materials are placed in a pressure filter type tea box, and the extraction process is constant temperature constant. The pressurized water flow is realized, and the instantaneous extraction is carried out instead of the immersion and ingestion, so that the substance dissolved in water in the preparation object can be stably and continuously precipitated, and the impurities which are not soluble in water are blocked on the filtration membrane.

DRAWINGS

Figure 1 is a schematic view showing the structure of a pressure filter type tea material container of the present invention.

Figure 2 is a front elevational view of the pressure filter type tea box of the present invention.

Figure 3 is a cross-sectional view, taken along line A-A, of the front view of the pressure filter type tea cartridge of the present invention.

Figure 4 is a top plan view of the pressure filter type tea cartridge of the present invention.

Figure 5 is a perspective view showing the appearance of the pressure filter type tea cartridge of the present invention.

Fig. 6 is a schematic view showing the tea making mechanism of the pressure filter type tea box of the present invention.

In the figure: 11-tea box body; 12-pressure filter membrane; 13-tea box lid; 1-water tank; 2-pressure water pump; 3-pressure valve; 4-boiler; 5-box tea; Tea box; 7-return spring; 8--pressing water tank; 9-out tea mouth; 10-cup.

Specific implementation method

Referring to FIG. 1 , a pressure filter type tea box comprises a tea box body 11 , and a pressure filter film 12 is arranged at the bottom of the tea box body, and the tea bag is filled in the tea box body in the tea box. The upper part of the body is welded to the tea box lid 13 by ultrasonic pressure to form a pressure filter type tea box.

2 to 5 are external views of the pressure filter type tea cartridge of the present invention.

Figure 6 is a schematic view of the tea making mechanism of the pressure filter type tea material box of the present invention. The tea making process is to push the pressure filter type tea material box between the boiler 4 and the pressing water tank 8, and press the pressure pump 2 to start the water tank. The purified water in 1 is injected into the pressure water tank 8, and the piston rises to press the tea box between the boiler and the piston to form a pressure P1; when the water pressure continues to rise more than P1, the purified water is controlled to enter the boiler 4 through the pressure valve 3. Heating and forming the pressure P2 in the furnace. When the pressure in the furnace is greater than P2, the purified purified water enters the tea box body 11 of the tea box 6 through the small hole in the pressure box cover 13 and is mixed with the tea leaf 5 in the box. And forming a high temperature pressure P3 in the box; when the pressure is greater than P3, the tea will penetrate the filter membrane 12, continuously flowing out of the tea mouth 9, and placing the teacup 10 below the tea outlet. The return spring resets the mechanism after the tea box is used.

The pressure values of P1, P2, and P3 and the length of time for making tea in the above tea making process can be set according to the characteristics of different filling teas. In order to more accurately according to different tea characteristics to brew. More effective and sufficient precipitation of the nutrients of tea.

The beneficial effects of the invention are:

1. The tea making process is realized in a closed system, clean and environmentally friendly;

2. The pressure and temperature during tea making can be set according to the varieties of different teas. Once set, the process of making tea is carried out under constant temperature and constant pressure;

3. In the process of making tea, the intake of tea polyphenols in tea is realized by flowing constant temperature water, so that the extraction of tea polyphenols is gradually analyzed, continuous, and sufficient;

4. Through the pressure filtration membrane, there is no more insoluble water suspended particles in the tea water.

Usually tea filter 50-150 mesh; general beverage filter paper holes 50-100u;

The advanced coffee filter paper filtration precision is also 10-25u, and due to gravity filtration, the higher the accuracy, the longer the time is. The "box tea" adopts pressure filtration, and the pressure can reach 10-18BAR, so 2-10u can be used. Filter membrane and greatly reduce filtration time During the period, the suspended particles of >2-10u are effectively trapped, so that the tea is pure and translucent.

5. The invention not only applies to the tea making of tea; but also applies to the water-soluble and water-extracted beverage varieties covered by the tea drinking method: for example:

a. Instant ingredients made from boiled water directly brewed in boiling water, such as lemon, fig, dried orange, etc.;

b. Dry fruit raw materials that can be directly brewed, such as alfalfa, lotus seed core, mangosteen, licorice, etc.;

c. Also includes raw materials that need to be boiled, such as American ginseng, Cordyceps, Sanqi and so on.

Experimental comparison

Taking Cordyceps sinensis as an example, the experiment compares the traditional tea brewing method with the pressure-filtered tea box of the present invention, and extracts the Cordyceps militaris tea with a tea-drinking machine; comparing the usage of the brewing tea in the conventional consumption of Cordyceps militaris The data was verified by using the pressure filter type tea box of the present invention to quickly extract the extraction and release efficiency of the active constituents of Cordyceps militaris (cungarin, cordyceps total sugar) by the tea-drinking machine.

Test sample: The pressure-filtered tea box was filled with Cordyceps militaris (each containing 2.5 grams of dried Cordyceps sinensis). Control sample: 2.5 g of dried Cordyceps sinensis. Source of raw materials: Test samples and control samples The Cordyceps sinensis materials were all dried from the same batch of Cordyceps militaris produced by Shanghai Academy of Agricultural Sciences.

Test Methods:

The cordycepin release effect was tested by high pressure liquid chromatography (HPLC). The total sugar release effect of Cordyceps was tested by the phenol-sulfuric acid method.

Table 1, cordycepin release effect (240 ml per pot, 97 degrees hot water)

Table 2, total sugar release effect of Cordyceps

Analysis of the results: From the measured results, compared with the usage of the tea in the regular consumption of Cordyceps militaris, the tea extracting method of the pressure-filtered tea box of the present invention extracts the effective components of Cordyceps militaris and Cordyceps total sugar. Efficient characteristics, the dissolution data of both the cordycepin and total sugar both confirm this feature.