Coffee brewing equipment

The coffee extraction apparatus with a stainless steel mesh and detachable paper filter addresses reproducibility and clarity issues by efficiently filtering fine particles, providing consistent coffee extraction.

JP3255379UActive Publication Date: 2026-04-06町田 明
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2026-01-13
Publication Date
2026-04-06

AI Technical Summary

Technical Problem

Existing coffee extraction methods, such as the drip and French press methods, face challenges in achieving reproducible results while minimizing fine powder mixing and maintaining clarity and taste.

Method used

A coffee extraction apparatus comprising a stainless steel mesh holding member with a detachable paper filter that immerses coffee grounds in hot water, allowing for efficient filtration and clear extraction by separating fine particles.

Benefits of technology

Enables highly reproducible coffee extraction with minimal fine particle mixing, ensuring consistent results and clarity without complex mechanisms.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 0003255379000001_ABST
    Figure 0003255379000001_ABST
Patent Text Reader

Abstract

To provide a simple coffee brewing device that can achieve both high extraction efficiency through immersion brewing and a clear extract with reduced contamination of fine particles, while suppressing variations in extraction results due to operating conditions. [Solution] The coffee brewing device comprises a stainless steel mesh holding member 1 and a paper filter 2 that is detachably attached to the holding member. Coffee grounds are placed inside the paper filter, and the holding member and the holding member together are placed inside a container 3. After supplying hot water to the container and immersing the members for a certain period of time, the holding member is removed from the container, thereby filtering and discharging the extracted liquid through the paper filter.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to an apparatus for coffee extraction that obtains an extract by immersing coffee powder and hot water, and particularly to an apparatus for coffee extraction that enables highly reproducible extraction while suppressing the mixing of fine powder.

[0002] Conventionally, as coffee extraction methods, a drip method using a paper filter and a French press method using a metal filter are widely known.

[0003] The drip method has a problem that the extraction result easily varies greatly depending on operating conditions such as the pouring method and flow rate of hot water, and it is difficult to obtain reproducibility.

[0004] On the other hand, the French press method has a high extraction efficiency because coffee powder is immersed in hot water, but fine powder that has passed through the metal filter easily mixes into the extract, and there are problems with the taste and clarity.

[0005] Thus, a simple apparatus that achieves both highly reproducible immersion extraction and filtration that suppresses the mixing of fine powder has not been sufficiently provided. Problems to be Solved by the Invention

[0006] In view of the above problems, the present invention aims to provide an apparatus for coffee extraction that can obtain a clear coffee extract with suppressed mixing of fine powder while suppressing variations in extraction results due to operating conditions, and enables highly reproducible extraction with a simple configuration. Means for Solving the Problems

[0007] The apparatus for coffee extraction of the present invention includes a holding member made of a stainless steel mesh and a paper filter detachably attached to the holding member. With the coffee powder contained in the paper filter, the entire holding member is placed in a container. After supplying hot water into the container and immersing the coffee powder for a certain period of time. The invention is characterized by a configuration in which the extract is filtered and discharged through the paper filter by removing the holding member from the container.

[0008] According to this invention, the extraction efficiency can be increased by immersing the coffee grounds in hot water, while the inclusion of fine particles can be suppressed by filtering through a paper filter.

[0009] Furthermore, because the retaining member is removed from the container along with the container, the timing of the end of extraction becomes clear, variations due to operating conditions are suppressed, and highly reproducible extraction becomes possible.

[0010] Furthermore, it does not require complex mechanisms or moving parts, and a clear coffee extract can be obtained with a simple configuration. [Brief explanation of the drawing]

[0011] [Figure 1] This is a schematic diagram showing the usage state of the coffee brewing device of the present invention. [Figure 2] This is a schematic cross-sectional view showing the relationship between the retaining member and the paper filter. [Figure 3] This is a schematic diagram showing an example of the configuration of the retaining member. [Figure 4] This is a schematic diagram showing an example of the overall use of coffee brewing equipment. [Modes for carrying out the invention]

[0012] One embodiment of the present invention will be described below, but the present invention is not limited thereto.

[0013] The coffee brewing device of this invention consists of a stainless steel mesh holding member and a paper filter attached to the holding member.

[0014] To use, place the paper filter containing the coffee grounds, along with the retaining element, into the container, and then pour hot water into the container.

[0015] After immersion for a predetermined time, the retaining member is removed from the container, and the extract is filtered through a paper filter and remains in the container. [Examples]

[0016] As an example, by using a general cup or server as a container and the apparatus configured as described above, a clear coffee extract with minimal fine particles was obtained. [Industrial applicability]

[0017] This invention can be widely used not only for home use but also as a coffee brewing device for commercial and outdoor use. [Explanation of symbols]

[0018] 1. Retaining member 2 paper filters 3 containers

Claims

1. A retaining member made of stainless steel mesh, A coffee brewing apparatus comprising a paper filter detachably attached to the holding member, wherein coffee grounds are contained in the paper filter and the holding member is placed together in a container, hot water is supplied to the container to immerse the coffee grounds for a certain period of time, and the brewed liquid is filtered and discharged through the paper filter by removing the holding member from the container.

2. The coffee brewing apparatus according to claim 1, characterized in that the stainless steel mesh holding member has a configuration that supports the outer surface of the paper filter, and the paper filter is immersed and filtered while maintaining its shape by the holding member.