Milk Foam Production with Feedback-Controlled Air Supply and Heating

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Solution Overview

Problem

Existing methods for producing milk foams lack continuous monitoring and adjustment capabilities, affecting the quality and consistency of milk foams in beverages.

Innovation Solution

A method and device that regulate the production of milk foams based on determined physical properties, such as electrical conductivity, using a system with air supply, heating, and flow control, allowing for real-time monitoring and adjustment of air pressure, temperature, and milk flow to achieve desired foam qualities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conventional milk foam production methods are used, then the production process is simple, but the quality and consistency of milk foam cannot be continuously monitored and adjusted

Engineering Contradiction:
Improvemilk foam quality consistencyVSAvoidproduction system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent implements a feedback control system where a measuring unit continuously determines physical properties of the milk-air emulsion (such as conductivity, density, or air content), and a control unit adjusts process parameters (air supply, milk flow, heating) based on the deviation from target values. This closed-loop feedback mechanism enables continuous monitoring and adjustment of milk foam quality, resolving the contradiction between quality consistency and system complexity by introducing intelligent control that automatically maintains precision without requiring manual intervention.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent replaces manual mechanical adjustment of milk foam properties with automated electronic control systems. Instead of manually adjusting air supply valves or heating elements, the system uses electronic sensors to measure physical properties and electronic actuators to automatically adjust parameters. This substitution of mechanical manual operations with automated electromechanical systems enables precise quality control while reducing operational complexity.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If physical properties are continuously measured and adjusted, then the quality of milk foams is optimized, but the complexity of the production system increases

Engineering Contradiction:
Improvemilk foam qualityVSAvoidmonitoring and control system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent employs feedback control where measurement results directly influence process adjustments. The measuring unit monitors physical properties in real-time, and the control unit automatically adjusts air supply, milk flow, or heating parameters to maintain target quality levels. This feedback mechanism ensures reliable milk foam quality by continuously correcting deviations, while the automated nature of the control reduces the need for complex manual monitoring procedures.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system is designed to be self-regulating, where the control unit automatically adjusts process parameters based on measurement feedback without requiring external intervention. The system monitors its own output quality and self-corrects any deviations from target specifications, enabling reliable quality maintenance while minimizing the complexity of external control mechanisms.

Inventive Principle:
Principle #25Self-service

3Productivity

If manual adjustment of air supply and heating is used, then the system is easy to operate, but the productivity and quality consistency are reduced

Engineering Contradiction:
Improvemilk foam production efficiencyVSAvoidsystem operation simplicity
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent implements a self-regulating system where the control unit automatically adjusts air supply, milk flow, and heating parameters based on real-time measurement feedback. The system monitors its own performance and self-corrects any deviations from target quality levels, enabling high productivity and quality consistency without requiring complex manual operations. The automated control eliminates the need for operators to continuously adjust multiple parameters, simplifying operation while maintaining high efficiency.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent enables continuous production of optimized milk foam by implementing continuous measurement and continuous adjustment of process parameters. Instead of batch-wise manual adjustments, the system continuously monitors physical properties and continuously adjusts air supply, heating, and flow rates to maintain optimal conditions. This continuous action ensures consistent quality and high productivity without requiring intermittent manual intervention, thereby simplifying operation while maximizing efficiency.

Inventive Principle:
Principle #20Continuity of useful action

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

Enables the continuous production of optimally designed milk foams with consistent quality, suitable for various beverages, including hot and cold drinks, by dynamically adjusting physical properties to match target specifications.

Implementation Method 1

determining the physical property of the material, in particular the electrical conductivity

Methodology Applied
Scientific EffectElectrical conductivity measurement: Conduction (electrical)

Implementation Method 2

air supply system for producing a milk-air emulsion

Methodology Applied
Scientific EffectAir entrainment: Air Entrainment

Implementation Method 3

at least one processing device c) serves to further process the milk-air emulsion, in particular with at least one heating device for warming/heating the milk-air emulsion

Methodology Applied
Scientific EffectHeating: Heating

Data Source

PatentEP3260025B1Device and method for creating milk/air emulsions
Publication Date: 2020.01.01 MELITTA PROFESSIONAL COFFEE SOLUTIONS GMBH & CO K
  • EP3260025B1 patent drawingFigure 1
  • EP3260025B1 patent drawingFigure 2
  • EP3260025B1 patent drawingFigure 3a

AI summary

A method is created with which milk-air emulsions, in particular milk foams, are produced with a device for producing milk foam, with the method being controlled as a function of at least one determined physical material property.