Three-Phase Cooking Chamber Heating for Even Browning and Core Temperature
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Solution Overview
Problem
Existing cooking methods and devices, even with precise core temperature control, often result in unsatisfactory cooking outcomes due to temperature inconsistencies between the food's surface and core, leading to overcooking or undercooking.
Innovation Solution
A cooking method and appliance that utilize three distinct phases: an initial high heat phase for browning, an equalization phase with reduced heat to balance surface and core temperatures, and a subsequent phase for achieving the desired core temperature, using a combination of thermal, steam, and microwave heat sources, with active heat dissipation and moisture management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a high overall heat output is introduced into the cooking chamber in the initial phase to brown the surface of the food, then the surface browning is improved, but the core temperature may not reach the desired level or may be overcooked due to temperature inconsistency
Solution Approach 1:
The cooking process is divided into three distinct phases: initial phase with high heat output for surface browning, intermediate phase with reduced heat output to prevent core overheating, and final phase to achieve desired core temperature. This temporal segmentation allows different heat treatments at different times, resolving the contradiction between surface browning and core temperature control.
Solution Approach 2:
The cooking process uses periodic modulation of heat output with high heat applied in the initial phase, followed by reduced heat in the intermediate phase, and then adjusted heat in the final phase. This periodic action pattern enables precise control over temperature distribution, achieving both surface browning and core temperature uniformity.
2Measurement precision
If the core temperature is precisely maintained using a core skewer, then the core temperature control is improved, but the cooking result may still deviate from the desired result due to surface-core temperature differences
Solution Approach 1:
The system uses feedback from core temperature measurement to dynamically adjust the overall heat output introduced into the cooking chamber. The control device modulates heating elements based on real-time core temperature data, and combines this with the three-phase heat output strategy to maintain both core and surface temperatures within desired ranges, ensuring consistent cooking results.
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 ensures tender and evenly cooked food without overheating, allowing for precise control of cooking parameters and improved cooking results, potentially eliminating the need for core skewers and providing consistent outcomes across varying food sizes.
Implementation Method 1
a high overall heat output is introduced into the cooking chamber in an initial phase of the cooking process... The high total heat output in the initial phase comes at least essentially from at least one thermal heat source
Implementation Method 2
Thermal heat sources that supply heat output to the food via convection or heat radiation must supply the heat output via the surface of the food to be cooked
Implementation Method 3
or a microwave source is present
Implementation Method 4
In the connection phase or in a later cooking phase, an average overall heat output is introduced into the cooking chamber
Implementation Method 5
EP 1 975 517 A2 discloses a method with temporal phases of different steam application
Implementation Method 6
Hot steam is applied to the item to be cooked for a predetermined time in order to activate the cooking process
Data Source
Figure 1~2
Figure 3~5
Figure 6~7
AI summary
The method involves introducing a high total heat output from a heat source (5) into a cooking chamber (2) of a cooking device (1) during an initial phase of a cooking process. A low total heat output is introduced into the cooking chamber during a balancing phase of the cooking process, where the low total heat output is a fraction of the high total heat output. An average total heating power is introduced into the cooking chamber during a terminal phase of the cooking process, where the total heating power is higher than in the balancing phase and lower than in the terminal phase. An independent claim is also included for a cooking device.