Long-term storage without preservatives is possible! If it's freeze-dried, please consult us first!
We offer contract processing of materials (from liquid to solid) using the technology of "vacuum freeze-drying (FD)," which sublimates only the moisture while the material is in a frozen state and dries it in a vacuum. Compared to conventional thermal drying, the residual moisture is extremely low, making it less likely for spoilage due to moisture to occur. Since drying is performed in a vacuum, there is almost no bacterial contamination from air, allowing for long-term storage after drying. Additionally, the areas that evaporate become hollow, resulting in a porous dried product, which has excellent rehydration properties when water is added. 【Features】 ■ Extremely low temperature of “-80°C” during the cold trap cooling process ■ Stabilization of product quality and high rehydration properties by lowering the temperature to “-60°C” during pre-freezing *For more details, please download the PDF or feel free to contact us.
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basic information
【Process】 ■Pre-freezing ■Cold trap cooling ■Vacuum evacuation → Heat supply ■Ice melting process
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Applications/Examples of results
Cosmetics field External pharmaceuticals Food field Can be accommodated.
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What is important in vacuum freeze-drying processing is not only the performance of the machine but also the appropriate preparation of the material and the settings and operation of the machine, in other words, "human skill." At Sien Co., Ltd., we perform contract processing of vacuum freeze-drying with "human skill" that maximizes the performance of the machine. Please feel free to consult us if you have any requests.