Self-Supporting Espresso Tablet Formation Using Microwave Sintering
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for preparing espresso coffee are costly due to complex manufacturing processes and environmental concerns related to packaging, and the use of ultrasonic vibrations for compacting tablets increases complexity and limits tablet thickness.
Innovation Solution
A method involving grinding brewable products to a uniform size, dosing, moistening, and compressing them into a disk-shaped tablet, followed by irradiation with an electromagnetic wave beam to achieve a compact, self-supporting structure without external enclosures, using microwave energy to partially bake and sinter the particles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pre-packaged capsules or pods are used for espresso preparation, then high-quality espresso can be prepared with simple equipment, but manufacturing and packaging costs are high
Solution Approach 1:
The invention extracts the product from traditional capsule packaging and reformulates it as a standalone tablet. The coffee product is compressed into a self-supporting tablet form that eliminates the need for plastic capsules, paper filters, or aluminum enclosures, thereby reducing manufacturing complexity and cost while maintaining espresso quality
Solution Approach 2:
The invention changes the physical state and density parameters of the coffee product by compressing it into a dense tablet form. This parameter change allows the product to be used without encapsulation, as the compressed structure provides mechanical integrity and self-support, eliminating packaging requirements and associated costs
2Ease of manufacture
If enclosures are used to contain coffee grounds, then the product can be contained and delivered, but the manufacturing process becomes more complex and problematic
Solution Approach 1:
The invention removes the enclosure component entirely from the system. By compressing coffee into self-supporting tablets, the patent eliminates the need for capsules, filters, and other containment structures, simplifying the manufacturing process to just grinding, dosing, compressing, and drying steps
Solution Approach 2:
The compressed tablet structure is self-supporting and self-contained, providing its own structural integrity without requiring external enclosures. The tablet's compressed morphology allows it to be handled, transported, and used without additional packaging, making the system self-sufficient
3Manufacturing precision
If ultrasonic vibrations are used to compact tablets, then compaction can be achieved, but vibrations require contact transfer which increases complexity and costs
Solution Approach 1:
The invention replaces the mechanical ultrasonic vibration system with a compression-based system. Instead of using complex ultrasonic generators and contact-based vibration transfer mechanisms, the patent uses straightforward mechanical compression to achieve tablet compaction, significantly simplifying the equipment required
Solution Approach 2:
The invention removes the ultrasonic vibration component from the manufacturing process entirely. By achieving compaction through compression alone, the patent eliminates the need for ultrasonic equipment, contact-based vibration transfer mechanisms, and associated complexity
4Manufacturing precision
If ultrasonic waves are used for tablet compaction, then some compaction is achieved, but the tablet cannot be uniformly compacted above a given thickness limit
Solution Approach 1:
The invention replaces ultrasonic vibration with compression mechanics to achieve uniform compaction throughout the tablet. Compression force applied through the dosing and forming process ensures uniform density distribution regardless of tablet thickness, overcoming the attenuation limitations of ultrasonic waves
Solution Approach 2:
The invention applies compression force during the tablet formation process itself, before the tablet is complete. By dosing and compressing the coffee grounds into a compact form during manufacturing, uniform compaction is achieved throughout the entire tablet structure, enabling production of tablets of any required thickness
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 approach reduces manufacturing costs, eliminates the need for packaging, and ensures uniform compaction and environmental sustainability by using microwave energy to create a self-supporting, porous, and efficiently extractable tablet for espresso beverage preparation.
Implementation Method 1
supplying an amount of energy to said tablet to obtain a substantially compact and integral item, characterized in that the step of supplying energy is carried out at a distance by irradiating the tablet with an electromagnetic wave beam to overheat and partially bake
Implementation Method 2
irradiating the tablet with an electromagnetic wave beam to overheat and partially bake and/or sinter the particles of the powdered product
Data Source
AI summary
A method of making a tablet for hot espresso beverage extraction includes the steps of grinding a brewable product to obtain a powder having a substantially uniform particle size, dosing a predetermined amount of the ground product powder, moistening the powdered product dose, homogenizing the moistened mixture to obtain a powdered product with a substantially uniform moisture content, forming the powdered product dose to obtain a disk-shaped or prismatic tablet, and supplying an amount of energy to the tablet to obtain a substantially compact and integral item. The step of supplying energy is carried out by irradiating the tablet with an electromagnetic wave beam to overheat and partially bake and/or sinter the particles of the powdered product and impart a relatively compact and self-supporting construction to the finished tablet. The electromagnetic wave irradiation step is carried out at the end of the forming step while continuously compressing the dose.