Coffee Machine Milk Mixing for Faster Heating and Foaming
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Solution Overview
Problem
Existing coffee machines face challenges in efficiently handling large volumes of milk, requiring costly energy for heating and foaming, leading to increased preparation time and logistical issues due to the perishable nature of fresh milk.
Innovation Solution
The use of concentrated milk, which can be easily mixed with hot or cold water within the coffee machine, simplifies logistics, reduces energy demands, and allows for faster heating and foaming, eliminating the need for a powerful steam generator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If fresh milk is used in large volumes, then milk-containing beverages can be dispensed, but logistics and cooling requirements increase significantly
Solution Approach 1:
The patent changes the concentration parameter of milk from fresh (low concentration) to concentrated form (high concentration). This parameter change reduces the volume by a factor of 5 to 10 times, making logistics and handling much easier while still allowing preparation of milk-containing beverages by adding water or ice
2Temperature
If steam is used to heat large amounts of milk, then hot milk can be prepared, but energy consumption increases and powerful steam generators are required
Solution Approach 1:
The patent introduces hot water as an intermediary substance to transfer thermal energy to the concentrated milk. Instead of directly heating large volumes of milk with steam (which requires powerful generators), the system uses a small amount of hot water from the coffee machine to rapidly heat the concentrated milk through mixing, dramatically reducing energy requirements
3Loss of time
If steam heating is used for concentrated milk, then hot milk can be prepared quickly, but costly steam generation measures are necessary
Solution Approach 1:
The system uses the hot water already produced by the coffee machine's brewing process to heat the concentrated milk. The hot water serves dual purposes: as a brewing medium for coffee and as a heating agent for milk. This self-service approach eliminates the need for separate steam generation equipment and reduces overall energy consumption
4Reliability
If fresh milk is used, then milk quality is maintained, but cooling facilities and cold chain requirements increase
Solution Approach 1:
The patent changes the storage temperature parameter by concentrating the milk first, then storing it at higher temperatures (refrigeration rather than deep freezing). The concentrated milk can be stored in a small refrigerated container instead of requiring large freezers or cold chain infrastructure, while quality is maintained through the concentration process and controlled storage conditions
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 preparation time, lowers production costs, and simplifies milk handling by enabling efficient temperature adjustment and easy cleaning with hot water, while maintaining the taste and quality of milk-based beverages.
Implementation Method 1
The use of concentrated milk offers the possibility of simplifying stockkeeping, reducing the length of the replacement cycles and drastically reducing the demands on the cooling volume to be provided.
Implementation Method 2
the heating of the concentrated milk by mixing this milk with hot water, which is prepared in a coffee machine in any case, offers the essential advantage that the time which elapses before a predetermined temperature is reached can be reduced essentially in comparison with processes in which heating is caused by steam
Implementation Method 3
The foaming of cold milk requires a high energy input within the shortest possible time
Data Source
AI summary
A coffee machine for preparing hot, milk-containing beverages and having a milk supply (15) and a discharge means (8). In order to achieve improved handling, the milk supply (15) is configured for accommodating concentrated milk, and a mixing device (17) is provided for mixing the concentrated milk with water.