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Application of Microwave in Seasoning Industry
The traditional method of drying and sterilizing powdery seasonings typically involves oven drying, which is an intermittent process. This approach is not only time-consuming and labor-intensive but also prone to contamination, leading to inconsistent quality. In contrast, the microwave drying and sterilization equipment developed by our company offers a continuous production process that significantly reduces labor, improves efficiency, and enhances product quality. It is widely applicable for various powdery seasonings such as pork powder, beef powder, chicken powder, seafood powder, chili powder, and allspice powder, as well as flake or granular seasoning materials.
Microwave synchronization drying and sterilization technology has gained widespread recognition in the condiment industry due to its numerous advantages. First, microwave drying features selective heating, where water molecules absorb the most energy, allowing for uniform heating and drying. Second, it is highly energy-efficient, as microwaves directly target the material without wasting heat on surrounding air or containers, achieving up to 30% energy savings compared to far-infrared methods. Third, the process is fast and efficient, as microwaves penetrate the material from all sides, enabling rapid and even heating. Finally, it is easy to control and technologically advanced, offering flexibility in power and speed adjustments, with no waste or pollution involved—making it a safe and eco-friendly solution.
In terms of sterilization, microwave technology allows for low-temperature processing that preserves nutrients and original flavors. At 2450 MHz, microwaves can effectively kill bacteria through both thermal and non-thermal effects. Studies have shown that E. coli can be eliminated at 70°C, while bacterial counts drop significantly at 80–90°C within just 2–3 minutes. This quick and efficient process helps maintain product quality and extends shelf life.
Since the 1970s, microwave energy has been increasingly used in the food industry, including the condiment sector. Jinan Kehong Microwave Energy Co., Ltd. has been at the forefront, providing high-quality microwave equipment that has helped many condiment companies improve their production processes. Companies like Shandong Feida Group and Leling Yunhai Foods have reported excellent results after using our microwave drying and sterilizing equipment, achieving better economic returns and product quality.
For instance, Pingdingshan Lekoufu Flavoring Plant replaced its fluidized bed drying system with Kehong’s microwave equipment, resulting in improved product quality, reduced energy consumption, and higher production output. The treated materials showed enhanced aroma and fragrance, significantly boosting sales. As a result, Kehong’s innovations in the chicken seasoning industry received widespread attention, leading to new orders from companies like Jinan Hongguang Monosodium Glutamate Co., Ltd.
Even some companies, such as Yanbian Gloss Changbai Mountain Special Product Processing Factory, placed orders via fax without visiting the factory, a clear sign of trust in Kehong’s technology. Other well-known users include Shandong Lumeng Group, Shijiazhuang Dongfang Lvyuan Food, and Texas Leyuan Industrial. These examples confirm that Kehong’s microwave equipment is widely adopted across the country, positioning the company as a leader in domestic microwave energy solutions.