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A good drop of soy sauce carries the mellow freshness of time, but it also relies on the essence of technology. Jiuwu Hi-Tech, with its independently developed inorganic ceramic membrane separation technology, deeply empowered a renowned food enterprise in its soy sauce refining and filtration upgrade project. With the hardcore membrane power of "precision separation, sterilization at room temperature, and flavor protection," it solved the shelf-life sedimentation problem, helping elevate the quality of high-end brewed soy sauce to a new peak, and set a new benchmark for green and intelligent manufacturing in the seasoning industry.
Traditional Process: Insufficient Filtration Precision, Prone to Sedimentation and Turbidity
Traditional soy sauce filtration mainly adopts "natural sedimentation + plate and frame filtration + diatomaceous earth filtration" combined processes, which is insufficient to completely remove colloids, impurities, and microorganisms, often resulting in turbidity and sedimentation. High-temperature sterilization further diminishes the natural soy sauce aroma. Its limitations include:
● Relying on natural precipitation+plate frame/diatomaceous earth filtration, can only remove large particles;
● Unable to intercept colloids, microorganisms, and large molecular proteins, polysaccharides, easily causing sedimentation, turbidity, and excessive bacteria;
● High-temperature sterilization is required, which destroys flavor and nutrition, and is energy-intensive and time-consuming.
Meanwhile, frequent replacement of consumables not only increases production costs but also makes it difficult to meet the needs of large-scale, continuous high-end soy sauce production; Consumables such as diatomaceous earth are difficult to recycle after use, which can easily generate solid waste pollution, contrary to the current industry trend of green manufacturing and low-carbon production.
Ceramic Membrane Process: Empowering dual improvement in soy sauce quality and efficiency
In response to the core needs of the enterprises, and considering the characteristics of soy sauce—high salt, high organic matter, and high viscosity—as well as the upgrade goals of "preserving flavor, improving quality, reducing energy consumption, and reducing pollution," Jiuwu Hi-Tech has assembled a professional technical team, gone deep into the front line of the factory, conducted comprehensive feed liquid analysis. Ultimately, they tailored a set of integrated soy sauce refining and filtration solutions with high-performance ceramic membrane as the core. From membrane material selection and process parameter optimization to system integration and commissioning, every step was precisely daptated to the entire process, completely overcoming the pain points of traditional processes.
This project utilizes Jiuwu Hi-Tech's high-performance ceramic membrane, sintered at high temperatures from inorganic materials such as alumina and zirconium oxide. It has advantages including acid and alkali resistance, pollution resistance, high precision, and long lifespan, perfectly suited to the soy sauce production environment.
Leveraging cross-flow filtration technology and precise pore size control, it achieves molecular-level fine separation: efficiently retaining suspended solids, colloids, yeast, and other microorganisms, with total bacterial count controlled to superior standards; simultaneously, it fully preserves core flavor and nutrients such as amino acid nitrogen, organic acids, and esters. Compared to traditional processes, Jiuwu's ceramic membrane technology brings three major transformations:
● Enhanced Quality: The soy sauce is clear and transparent, does not settle even after long-term storage, retains its natural soy sauce aroma and mellow taste, meeting the quality standards of high-end soy sauce;
● Upgraded Efficiency: Physical sterilization at room temperature replaces high-temperature sterilization, shortens processes, reduces energy consumption, significantly improves production efficiency, and adapts to large-scale stable production;
● Green and Cost-Effective: Membrane elements are resistant to fouling and easy to clean, with a service life far exceeding traditional consumables. Automated operation reduces manual labor, resulting in a lower carbon and more economical entire process.
In addition, ceramic membrane filtration eliminates the need for chemical additives such as diatomaceous earth, avoiding the risk of additive residues and reducing solid waste generation, thus achieving "zero-waste" filtration. The membrane elements are resistant to pollution, and the entire process is low-carbon and environmentally friendly, which aligns with the national "dual-carbon" strategy and the development trend of green manufacturing in the food industry, helping customers build a corporate image of "green brewing and low-carbon production".
Currently, Jiuwu Hi-Tech has successfully applied its ceramic membrane technology to many well-known domestic enterprises in the food brewing field, accumulating mature application experience. This participation in the soy sauce refining and filtration upgrade project is another benchmark practice of Jiuwu Hi-Tech's ceramic membrane technology in the high-end soy sauce brewing field, helping the traditional brewing industry to transform and upgrade, protecting the original taste on the tip of the tongue, setting a new benchmark for industry quality, and allowing Chinese membrane technology and Chinese intelligent manufacturing to benefit more fields and reach a wider market, demonstrating the core strength of "Chinese membrane power" in empowering the upgrading of traditional industries.
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