Sous Vide Cooking Using Oil Immersion and Reusable Containment Shells
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Solution Overview
Problem
Sous vide cooking methods are costly due to the need for expensive equipment and disposable vacuum bags, and involve a complex multi-step process that includes vacuum bagging, controlled temperature cooking, and separate heat coloring, which is environmentally unfriendly and inconvenient.
Innovation Solution
The use of malleable, thermally transmissive food containment shells formed face-to-face with the food, eliminating the need for vacuum bag sealers and bags, and employing cooking oils instead of water to achieve sous vide and surface coloring temperatures, with a simplified two-step process that allows for flexible cooking conditions and easy addition of ingredients.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional sous vide equipment and vacuum bags are used, then controlled temperature cooking is achieved, but equipment cost and operational cost increase significantly
Solution Approach 1:
The patent changes the cooking medium from water to cooking oil, which has different thermal properties (higher smoke point, better heat retention). This parameter change allows the system to achieve controlled temperature cooking without requiring expensive precision temperature control equipment, as oil naturally maintains stable temperatures better than water
Solution Approach 2:
The patent eliminates the need for disposable vacuum bags by using a reusable cooking oil system with direct food immersion. Instead of discarding plastic bags after one use, the system uses durable cookware that can be reused multiple times, significantly reducing operational costs
2Manufacturing precision
If vacuum bagging and separate heat coloring steps are used, then food quality is maintained, but process complexity increases
Solution Approach 1:
The patent combines multiple cooking functions (cooking, browning, searing) into a single cooking oil-based process. The cooking oil serves multiple purposes: it transfers heat for cooking, provides browning capability through its thermal properties, and eliminates the need for separate vacuum bagging and heat coloring equipment. This merging reduces process complexity from three separate steps to one integrated process
Solution Approach 2:
The cooking oil system performs multiple functions simultaneously: it acts as a heat transfer medium for controlled temperature cooking, provides surface browning through its thermal characteristics, and eliminates the need for separate containment bags. This multi-functionality reduces the number of required equipment pieces and process steps while maintaining food quality
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 costs, simplifies the cooking process, conserves resources, and allows for more convenient and flexible food preparation, including rapid reheating and storage, while maintaining high food quality and nutritional content.
Implementation Method 1
employing cooking oils instead of water to achieve sous vide and surface coloring temperatures
Data Source
AI summary
Food preparation includes utilizing food immersion into low temperature cooking fluids, high temperature cooking fluids, or a combination of applications thereof. Foods are generally closely wrapped in vented, pliable, formidable outer skins. An example construction of such an outer skin is provided, as are examples of food preparation processes.