JPH0811095B2 - Green tea extractor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a device for putting in, that is, extracting, green tea such as green tea, bancha, and brown rice tea. More specifically, it has a good color tone and flavor. The present invention relates to a disposable type green tea extractor capable of obtaining a green tea extract in a short time.

[Conventional technology]

As a device for extracting green tea, a teapot, a tea strainer, etc. are known, but there is a problem that these devices need to be washed each time they are used and are complicated. Conventionally, a tea bag proposed by Japanese Examined Patent Publication No. 53-31360 is known as such a simple product for extracting green tea of a disposable type.

[Problems to be Solved by the Invention]

Since such tea bags require a relatively long time for extraction, there is a problem that the demand for obtaining a green tea extract in a short time is not always sufficient. The above problem was particularly remarkable when the green tea extract was poured into a plurality of hot and cold drinks at one time.

Therefore, as a result of research on a disposable type green tea extraction product capable of supplying the green tea extract in a short time, the applicant has found that the pouring of hot water causes the tea leaves to sway due to the inflow pressure. By this, from the viewpoint that it can be extracted in a short time, on the lower side of the outer frame made of cardboard or the like having a pouring port, it is formed from a passage speed of hot water of 5 ml / sec or more with a filter paper or filter cloth A tea leaf storage part with an opening at the top,
It has been conceived to use a tea extractor in which the upper edge of the opening of the tea leaf storage portion is attached so as to surround the pouring port. However, according to this extractor, although the green tea extract can be obtained in a short time, the obtained green tea extract has a poor color tone.

An object of the present invention is to provide a disposable type green tea extractor capable of obtaining a green tea extract having a good color tone.

[Means for solving problems]

In order to obtain a green tea extract having a good color tone, it was found that it is effective to include fine powder of green tea leaf in the green tea extract, and from this point, it contains fine powder of green tea leaf as the tea leaf to be used. It has been found that it is important to adopt tea leaves and to configure the tea leaf storage portion so that the fine powder of green tea leaves can pass through.

The gist of the present invention completed on the basis of the above findings is that an outer frame having an opening that constitutes a pouring port, and the opening is attached to the lower side of the outer frame so as to surround the opening of the outer frame. ,
Containing a tea leaf accommodating part having a hot water passage speed of 5 ml / sec or more and a green tea leaf and a fine powder of green tea leaves having a particle size of 1 to 150 μm, which is composed of a porous filtration sheet having an opening of 150 to 2000 μm It is in a green tea extractor consisting of tea leaves.

〔Example〕

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings. In the accompanying drawings, reference numeral 1 indicates an extractor body. The extractor body 1 includes an outer frame 2 and a tea leaf storage unit 3.

A pouring port 4 is provided in the center of the outer frame 2. The material of the outer frame is not particularly limited as long as it has a required rigidity, and examples thereof include paper such as cardboard and cardboard, synthetic resin such as polyethylene and polypropylene, and laminates thereof. obtain.

The outer frame 2 is preferably provided with a handle 5 on the outer frame 2 as shown in FIG. In addition, a cut or the like may be formed in the outer frame 2 in order to ensure that the container is placed on the opening of the container such as hot and cold drinks.

As shown in FIG. 2, the tea leaf storage unit 3 has an opening 6 at the top.
Are formed. In addition, the tea leaf storage unit 3 has an opening,
That is, a large number of holes 7 each having an inscribed circle diameter of 150 to 2000 μm are formed. The shape of the hole 7 is not particularly limited, and may be, for example, a mesh shape, a circular shape, an elliptical shape, or a polygonal shape. The porosity is 5 to 95%, preferably 30 to 70% with respect to the entire area of the tea leaf storage portion. Further, as the material of the tea leaf storage part, there are synthetic fibers such as vinylon, nylon, polyester, polypropylene and the like in addition to paper, but a nonwoven fabric made of these synthetic fibers is most preferable in that it is suitable for processing such as heat sealing. .

The shape of the tea leaf storage unit 3 is not particularly limited as long as it can store tea leaves, and may be, for example, a bag shape or a cup shape. The tea leaf storage unit 3 is preferably flexible and therefore foldable in that it is not bulky during storage and transportation.

In addition, since the tea leaf storage unit 3 can obtain the green tea extract in a short time, the passage speed of hot water needs to be 5 ml / sec or more, preferably 5 to 100 ml / sec, more preferably 10 to 50 ml.
Suitably ml / sec. The passage speed of hot water is adjusted by appropriately selecting the material and / or the porosity of the tea leaf storage portion.

As shown in FIG. 1, the tea leaf storage portion 3 thus configured has an opening 6 of the tea leaf storage portion 3 below the outer frame 2.
The upper edge 8 is attached so as to surround the pouring port 4.

On the other hand, the tea leaves 9 are composed of green tea leaves and fine powder of green tea leaves having a particle size of 1 to 150 μm. Particle size 1 to 150μ
Adopting tea leaves containing fine powder of green tea leaves having the particle size of
In addition, by forming a hole having a spread of 150 to 2000 μm in the tea leaf storage portion, the fine powder of green tea leaf can be contained in the obtained green tea extract, whereby the color tone of the green tea extract obtained can be made excellent. The content of green tea leaves having a particle size of 1 to 150 μm is preferably 0.05 to 10.0% by weight, and more preferably 0.3 to 3.0% by weight based on the whole tea leaves. As the tea leaf containing the above-mentioned fine powder, one that already contains the above-mentioned fine powder of green tea at the time when the tea leaf is produced may be used, or one in which the above-mentioned fine powder is added and mixed to the tea leaf after production may be used.

On the other hand, it is preferable that 80% by weight or more, and further 95% by weight or more of the green tea leaves have a particle size larger than the pores formed in the tea leaf storage portion and not more than 3000 μm. Such a green tea leaf is less likely to cause clogging, further promotes extraction, can further improve the color tone of the obtained green tea extract, and can improve the flavor of the green tea extract. Is preferred.

As a means for obtaining tea leaves having a particle size of 3000 μm or less, it is practically appropriate to use a sieve having an opening of 2830 μm after crushing the tea leaves.

The type of green tea that can be used in the present invention is not particularly limited as long as it is green tea, for example, sencha, deep steamed sencha, gyokuro, bancha,
Examples include brown rice tea and the like.

The green tea extractor of the present invention is composed of the extractor body 1 and the tea leaves 9, but the tea leaves 9 may be stored in advance in the tea leaf storage part 3 of the extractor body 1 described above, or It may be attached and stored at the time of use, and is not particularly limited.
In the case of the former, in order to prevent the fine powder of green tea leaves or green tea from leaking from the tea leaf storage unit during transportation or storage, the entire green tea extraction device is vacuum-packed, or the tea leaf storage unit is pulled, a paste, It is preferable to coat with an edible soluble substance such as a gelling agent.

〔The invention's effect〕

The following comparative experiments were conducted to prove the effect of the present invention.

<Comparative Experiment 1> Used extractor main body product of the present invention (a) Opening of holes formed in the tea leaf storage part; 5
00μ (b) Porosity of tea leaf storage part; 70% (c) Passage rate of hot water in tea leaf storage part; about 50 ml / sec (d) Shape of tea leaf storage part; Bag shape (e) Size of tea leaf storage part; Bottom length 2.5 cm, Opening length 4 cm, Depth 5 cm Comparative product ... (a) Opening of holes formed in the tea leaf storage part; 3
Same as the product of the present invention except that it is 0 μ and (c) the passing speed of hot water in the tea leaf storage part; about 5 ml / sec.

Used tea leaves of the present invention and comparative product (common) 2 g of green tea leaves (Sen-cha) with a particle size that passed through a sieve with a mesh size of 250 μ and passed through a sieve with a mesh size of 250 μ, and fine powder of green tea leaves (Sen-cha) (particle size of about 50 μ) ) 0.02 g was added and mixed.

Pouring acceleration and amount of hot water Inventive product / comparative product (common) Pouring acceleration of hot water; about 5 ml / sec Hot water amount; 100 ml A sensory evaluation was performed on the green tea extract obtained under the above conditions. The results are shown in Table 1. The color tone in the table is a sensory evaluation by a panel of 15 people (5-level evaluation when the color tone of the ideal green tea extract of the panel is 5 points), and the average value (rounded to the second decimal place) is shown.

<Comparative Experiment 2> Next, the following comparative experiment was conducted in order to see the difference in color tone and flavor of the obtained green tea extract depending on the difference in particle size of green tea leaves.

Used extractor body (a) Opening of holes formed in the tea leaf storage part; 160μ (b) Opening rate of tea leaf storage part; 70% (c) Hot water passage speed in the tea leaf storage part; about 15 ml / sec (D) Shape of tea leaf storage part; bag shape (e) Size of tea leaf storage part; bottom length 2.5 cm, opening length 4 cm, depth 5 cm Hot water pouring acceleration and volume Hot water pouring acceleration; about 5 ml / Sec Hot water amount: 100 ml Used tea leaves Basically, it is prepared by mixing 2 g of green tea leaves (sencha) with 0.02 g of fine powder of green tea leaves (sencha) (particle size about 50 μ). 95% by weight or more was changed to the particle size shown in the table.

A sensory evaluation was performed on the obtained green tea extract. Table 2 shows the results. The colors and flavors in the table were sensory-evaluated by a panel of 15 people (5-level evaluation when the color tone and flavor of the ideal green tea extract of the panel were 5 points), and the average value (rounded to the second decimal place). ) Is shown.

As is clear from the above-mentioned comparative experiment, the green tea extractor of the present invention makes it possible to easily obtain green tea having a good color tone in a short time.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of a green tea extractor of the present invention, and FIG. 2 is a perspective view of a tea leaf storage unit in this embodiment. 1 ... Extractor body, 2 ... Outer frame 3 ... Tea leaf storage section, 4 ... Pouring spout 5 ... Handle 5

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kensuke Yamaguchi 1-5-7 Mikitei-cho, Higashi-Osaka City, Osaka Prefecture House Food Industry Co., Ltd. (72) Inventor Jun Katada 1-5, Mikitei-cho, Higashi-Osaka, Osaka Prefecture No. 7 House Food Industry Co., Ltd.

Claims (2)

[Claims] 1. An outer frame having an opening forming a pouring port, and a porous filtration having an opening of 150 to 2000 μ, which is attached to the lower side of the outer frame so that the opening surrounds the opening of the outer frame. A tea leaf accommodating portion consisting of a sheet having a hot water passage speed of 5 ml / sec or more, and green tea leaves and a particle size 1 to 1 contained in the tea leaf accommodating portion.
A green tea extractor consisting of tea leaves containing 150 μ of fine powder of green tea leaves. 2. The green tea extractor according to claim 1, wherein 80% by weight or more of the green tea leaves have a particle size larger than the holes formed in the tea leaf storage portion and not more than 3000 μm.