Perforated Milk Frothing Assembly for Texture and Temperature Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing milk frothing devices face issues with poor temperature control and milk dilution when using steam, and whisk-type devices often fail to achieve desired frothing or texturing.
Innovation Solution
A frothing assembly with a motor-driven frothing device and a perforated member that creates a clearance for milk circulation, allowing the frothing device to be submerged and rotated to introduce air bubbles effectively, while a temperature sensor and heater control the frothing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If steam texturing is used to froth milk, then the milk is heated and aerated, but the milk is diluted with water and temperature control is poor
Solution Approach 1:
The invention extracts the heating function from the frothing mechanism by using a separate heated container, allowing the frothing device to operate with cold or pre-heated milk without adding water. The motor-driven frothing device with perforated member creates foam through mechanical action alone, eliminating the harmful water addition inherent in steam texturing.
Solution Approach 2:
The system is divided into separate functional components: a heated container for temperature control and a motor-driven frothing device for aeration. This segmentation allows independent optimization of heating and frothing processes, preventing the dilution problem that occurs when these functions are combined as in steam texturing.
2Quantity of substance
If a whisk is used to create a vortex and draw air into the milk, then the milk is aerated, but the desired froth texture is not achieved
Solution Approach 1:
The perforated member with multiple small holes acts as a porous structure that atomizes the milk into fine droplets as it passes through. This creates a more uniform and stable froth texture compared to the vortex method, which incorporates air less efficiently. The perforated design increases the surface area for air-milk contact and produces finer, more stable bubbles.
Solution Approach 2:
The perforated member serves as an intermediary between the rotating frothing device and the milk, breaking up the milk flow into finer streams that mix more effectively with air. This intermediate structure enhances the aeration process and produces superior froth texture compared to direct vortex action.
3Productivity
If the frothing device rotates at high speed, then air is incorporated into the milk, but temperature control becomes difficult
Solution Approach 1:
The system separates the high-speed frothing operation from the heating process by using a pre-heated container. This allows the motor-driven device to rotate at high speeds (5000-15000 rpm) for efficient aeration without the risk of overheating that would occur if heating and frothing were simultaneous as in steam texturing.
Solution Approach 2:
The milk is pre-heated in the container before the frothing process begins. This preliminary heating action allows subsequent high-speed frothing to occur without significant temperature changes, maintaining precise temperature control while achieving efficient aeration and foam creation.
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 solution provides precise temperature control and effective frothing without diluting the milk, achieving the desired froth texture and flavor, addressing the limitations of steam and whisk-type devices.
Implementation Method 1
Using a whisk to create a vortex thereby drawing air into the milk
Implementation Method 2
rotation of the frothing device causes movement of milk in the clearance and movement of milk through the perforated member to be circulated back through the container and the clearance to cause frothing of the milk
Implementation Method 3
the base includes a device to heat the milk in the container
Implementation Method 4
the base includes a temperature sensor to detect temperature of the container and therefore the milk
Data Source
AI summary
There is disclosed herein a frothing assembly (21) to froth milk in a container (11). The assembly (21) includes: a body (25); a motor (33) fixed to the body and having an output shaft (34) that is rotatably driven about a longitudinal axis (35) of the shaft (34); a frothing device (36) rotatably driven by the shaft (34) and to be submerged in the milk in the container (11); and a perforated member (43) at least partly surrounding the frothing device (36) and spaced from the frothing device (36) by a clearance (44), wherein rotation of the frothing device (36) causes movement of milk in the clearance (44) and movement of milk through the perforated member (43) to be circulated back through the container (11) and the clearance (44) to cause frothing of the milk.