Ancient Grain Bread Fermentation with Cold Maturation
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Solution Overview
Problem
Bakery products, particularly bread, made from whole wheat, semi-whole wheat, soft wheat, or spelt flours with low gluten content face challenges in retaining gases during fermentation due to weak gluten structure, resulting in poor handling, reduced volume, and limited maturation, which compromises the final product's characteristics and digestibility.
Innovation Solution
A method utilizing pure, stone-ground ancient grain flours with a liquid starter and minimal beer yeast, combined with cold fermentation and controlled air introduction to prolong maturation and enhance enzymatic and chemical processes, ensuring a light, open structure and improved organoleptic qualities without mixing with strong flours.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If pure ancient grain flours with low gluten content are used, then health benefits and reduced inflammatory activity are achieved, but the dough structure becomes weak and cannot retain gases during fermentation
Solution Approach 1:
The fermentation process is divided into multiple distinct phases: initial fermentation at room temperature, then cold fermentation at 4-10°C for extended periods (18-48 hours), and final proofing. This segmentation allows the dough to develop structure gradually without requiring high gluten content, as each phase contributes differently to the final product quality.
Solution Approach 2:
The patent changes the temperature parameter during fermentation, transitioning from room temperature to cold temperatures (4-10°C) and then back to warmer temperatures for final proofing. This parameter change slows down fermentation at cold temperatures, allowing extended maturation time without excessive gas production that would overwhelm the weak gluten structure.
2Duration of action of moving object
If extended fermentation time is used to improve digestibility and organoleptic characteristics, then enzymatic and bacteriological processes are enhanced, but the weak gluten structure cannot retain the produced gases
Solution Approach 1:
The patent utilizes phase transition in the sense of transitioning between different fermentation states by changing temperature. The cold fermentation phase (4-10°C) acts as a controlled intermediate state that extends maturation time while suppressing excessive gas production, allowing the dough to undergo prolonged enzymatic breakdown without volume collapse.
Solution Approach 2:
The fermentation process follows a periodic pattern with distinct stages: initial active fermentation, followed by prolonged cold maturation, then final warm proofing. This periodic action allows different biochemical processes to dominate at different times, maximizing digestibility and flavor development while managing gas retention constraints.
3Duration of action of stationary object
If cold fermentation is used to prolong maturation and limit fermentation, then enzymatic activities are maintained while microbial fermentation is slowed, but the dough requires extended handling time
Solution Approach 1:
The cold fermentation process allows the dough to mature autonomously in the refrigerator without requiring active management or intervention. The dough sits undisturbed for extended periods (18-48 hours), performing self-digestion and flavor development through controlled enzymatic and microbial activities, freeing the operator from continuous attention.
Solution Approach 2:
The extended cold maturation phase performs preliminary biochemical work ahead of the final baking stage, breaking down complex molecules and developing flavors in advance. This preliminary action reduces the need for intensive mixing or manipulation during final dough preparation, effectively trading upfront time investment for reduced later workload.
4Ease of operation
If the dough is left at rest under cold conditions to lengthen maturation time, then fermentation is limited and handling becomes easier, but the gluten structure does not develop sufficiently
Solution Approach 1:
The fermentation process continues uninterrupted through multiple temperature phases rather than being stopped and restarted. The dough undergoes continuous biochemical transformation from room temperature fermentation through cold maturation to final warm proofing, ensuring cumulative gluten development while maintaining handling ease during the cold phase.
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 method allows for prolonged fermentation and maturation, resulting in bread with high digestibility, an open structure, and enhanced flavor, while maintaining the health benefits of ancient grains, such as reduced inflammatory activity and lower glycemic impact.
Implementation Method 1
the gluten creates - within the mass of water and flour - a kind of crosslinking capable of retaining the gases that have developed during rising/fermentation
Implementation Method 2
By leaving the dough at rest under cold conditions, it is possible to considerably lengthen the times of maturation and limit/block the fermentation. The cold within the dough does not block the enzymatic activities but slows the fermentation generated by the lactic and acetic organisms.
Implementation Method 3
The longer fermentation also allows the natural yeast to more greatly activate a number of microbial species that contribute to the production of metabolites, which render the aroma richer and more complete (acids, aldehydes, alcohols, esters and precursors such as peptides, amino acids, soluble carbohydrates, etc.).
Data Source
AI summary
The present invention specifically regards a method for making (fermented) bakery products in particular, but not only, bread with the exclusive use of whole wheat and semi-whole wheat flours, of soft wheat, hard wheat or spelt with low "force index", obtained with natural stone grindstones. Flours not admixed with any improver, not stabilized, not irradiated, not genetically modified (GMO), not genetically manipulated; mainly but not exclusively, of "ancient" grains. Where "ancient grains" indicates local (autochthonous) grains that have not undergone artificial modifications induced by man. Confectionary products are excluded. For producing bread, the method provides for the use of pure flours with a hydration higher than 70%. The method, for each flour type, defines the parameters and the criteria for the process so as to standardize it and make it repetitive. The new method provides for the use of the following ingredients: Li.Co.Li. (Starter in liquid form) exclusively made and refreshed with whole wheat or semi-whole wheat monococcum spelt flour ground with natural stone or with the same flour used for the pre-dough and for the dough; compressed fresh beer yeast; wheat flour as defined above; water; sea salt; barley malt and seed oil for working. The new method provides for the following steps: 1) Refreshing the Li.Co.Li. (starter in liquid form). Water temperature, flour and ambient temperature will be pre-established so as to obtain a constant product; 2) Preparing the pre-dough by mixing water, flour, Li.Co.Li. and compressed fresh beer yeast and placed to mature with values or with interval of values relative to pre-established temperature and humidity; the ratio between the ingredients of the pre-dough is pre-established. 3) Preparing the dough, characterized by four steps: Dissolving the pre-dough and mixing with part of the water, malt and compressed fresh beer yeast, with blade blender or the like. Inserting air into the dough with a manual electric beater provided with two whisks or a bench top mixer provided with adjustable double whisk or other equipment that still uses a double whisk; the double whisk must not be used within the dough but on the surface such that it only affects/penetrates the surface of the dough (a small thickness of the surface) and adding part of the flour and water. Completing the dough with planetary mixer with hook or the like by adding the rest of the flour and water. Further completing, if necessary, of the kneading by hand, without folds. The ratio between the ingredients of the dough is pre-established. 4) Maturing the dough under cold conditions with pre-established temperature and humidity. 5) Reviving, characterized by gradually reviving with pre-established temperature and humidity. 6) Fermenting ("Puntata"): this type of dough, after the above-described rising, can be used for various bakery products, even enriched with the addition of extra virgin olive oil in the step of kneading with the planetary mixer. 7) Hand-shaping and final forming. 8) Final fermentating ("Appretto") characterized by heating the rising baskets from below. 9) Baking and drying.