Microwave-Sintered Espresso Tablets Without Capsule Packaging
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Solution Overview
Problem
Existing methods for preparing espresso coffee are costly due to complex manufacturing processes and environmental concerns related to packaging, and they require enclosures that can limit flavor extraction and are not efficiently compacted.
Innovation Solution
A method for producing tablets of ground powdered products for hot espresso beverage extraction that eliminates the need for enclosures by using a blend of coffee grains, uniform grinding, dosing, moistening, homogenization, forming under pressure, and microwave irradiation to create a self-supporting, compact, and porous structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If enclosures (capsules or pods) are used to contain coffee grounds, then the manufacturing and packaging process becomes more complex and costly, but the product can be easily prepared and distributed
Solution Approach 1:
The invention extracts and eliminates the enclosure (capsule or pod) from the espresso preparation system, using only loose coffee grounds in a filter container. This removes the complex packaging structure while maintaining the essential function of coffee delivery.
Solution Approach 2:
The invention discards the enclosure material (plastic, paper, aluminum) after use, allowing simple disposal of coffee grounds without requiring recovery or special handling of packaging materials. This simplifies both manufacturing and end-of-life processing.
2Loss of substance
If enclosures are used to contain coffee grounds, then distribution and storage are simplified, but environmental disposal becomes problematic
Solution Approach 1:
The invention removes the enclosure component entirely from the system, eliminating plastic, paper, and aluminum waste associated with capsule disposal. Only biodegradable coffee grounds and filter paper remain, significantly reducing environmental impact.
3Device complexity
If ultrasonic vibrations are applied to compact tablets, then enclosures can be eliminated, but the manufacturing process becomes more complex and costly
Solution Approach 1:
The invention removes the enclosure from the system and replaces the complex ultrasonic vibration process with simple manual tamping. This eliminates both the enclosure and the need for sophisticated vibration compaction equipment.
Solution Approach 2:
The invention enables the user to perform the compaction function themselves through manual tamping, eliminating the need for automated ultrasonic vibration systems in the manufacturing process. The user serves their own compaction needs without requiring complex industrial equipment.
4Ease of operation
If manual tamping is used to compact coffee grounds, then the process is simple and accessible, but high-quality espresso requires skill and professional equipment
Solution Approach 1:
The invention creates a simplified system that copies the essential function of professional espresso preparation (water forced through compacted coffee) using accessible domestic equipment. While not perfectly replicating bar-quality results, it provides sufficient quality for home use without requiring professional skill levels.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method reduces manufacturing costs and environmental impact while ensuring uniform heating and flavor extraction, resulting in a cost-effective, self-supporting tablet for efficient espresso preparation.
Implementation Method 1
applying electromagnetic energy to the compressed powdered product in the form of microwave irradiation
Implementation Method 2
The microwave irradiation heats the compressed powdered product uniformly throughout the tablet
Data Source
Figure 1a~1j
Figure 2
Figure 3
AI summary
A method of making a tablet for hot espresso beverage extraction, comprising the steps of a) grinding a brewable product to obtain a powder having a substantially uniform particle size, b) dosing a predetermined amount of the ground product powder, c) moistening the powdered product dose, d) homogenizing the moistened mixture to obtain a powdered product with a substantially uniform moisture content, e) forming the powdered product dose by compression to obtain a disk-shaped or prismatic tablet (C), supplying an amount of energy to the tablet (C) to obtain a substantially compact and integral item. The step f) of supplying energy is carried out at a distance by irradiating g) the tablet (C) with an electromagnetic wave beam (F) to overheat and partially bake and/or sinter the particles of the powdered product as well as to impart a relatively compact and self-supporting construction to the finished tablet (C). The electromagnetic wave irradiation step g) is carried out at the end of the forming step e) while continuously compressing the dose.