**Freeze dryer - Lock in freshness with advanced technology, long-term preservation, and eternal quality.**
→Freeze dryer can extend the shelf life of food and other substances, maintain their quality and nutritional components by subjecting them to freezing and vacuum drying processes.
→Freeze dryer works in combination with a vacuum pump and a cold trap. The vacuum pump provides a vacuum environment, while the cold trap provides a low-temperature environment to trap the moisture, further reduces the pressure in the system to keep freeze drying process ongoing.
Why choose YUYAN freeze dryer:
✅Nutrition intact - Ultra-low temperature quick freezing + vacuum dehydration, preserving the original shape, color, taste and nutritional components, with active substances fully retained.
✅Portable and durable for storage - Dehydration does not reduce quality, and the quality can be restored by rehydration, effectively extending its shelf life.
✅Convenient transportation - The dried substance is lightweight and small in volume, easy to store and transport.
✅Widely applicable -One machine can meet multiple scenarios' needs for samples such as food, medicine, cosmetics, biological products, etc....
⚙️YUYAN freeze dryer is created for quality:
✅Efficient freeze-drying: Larger freeze-drying area, higher ice-capturing efficiency, lower energy consumption, and more cost savings.
✅ Intelligent control: One-click start + real-time monitoring of drying progress. Multiple sets of process parameters can be preset. Simple operation, saves time and effort.
✅ Flexible Switching: Choose freely between manual and auto filling.
✅ Compact structure: It can effectively save laboratory space. With a small volume but high energy, it can meet the freeze-drying needs of various laboratory samples.
✅ Short freeze-drying cycle: Standard equipped with high quality vacuum pump, vacuum gauge, and solenoid valve, making vacuum control more precise. The freeze-drying cycle can be shortened by up to 40%. Advanced refrigeration system.
✅ More reliable and safer: Equipped with automatic pressure relief, one-click defrosting, pressure protection device, and functions such as operator permission, making freeze-drying more reliable and safer.
✅ Sturdy and durable: Made of food-grade stainless steel, it is corrosion-resistant and easy to clean.
🏭Applicable industries：
✨Food industry: Fruits, vegetables, meat, seafood - lightweight camping food. Easy to make healthy food!
✨Pharmaceutical industry: Vaccines, probiotics, active preservation of medicinal herbs
✨Biological industry: Long-term stable storage of biological samples, microbial strains
✨In fields such as materials, chemicals, agriculture, cosmetics, etc.
🎯Freezing-drying stage：
It is usually divided into three stages: Pre-freezing, Vacuum drying and Defrosting.
✨ Pre-freezing: Quickly freeze the substance to a low temperature.
✨ Vacuum drying: Convert the ice from a solid state directly into a gaseous state by controlling temperature and pressure.
✨ Defrosting: Heat the substance to make the ice detach from the cold trap.
📈The workflow is as follows:
1️⃣ Turn on the freeze dryer: Start the freeze dryer, plug in the power and turn on the main power supply.
2️⃣ Prepare materials: Place the materials that need be freeze dried into the working chamber of the freeze dryer. These can be foods, medicines, or other items that require freeze-drying.
3️⃣ Pre-cooling: Before starting the actual freeze-drying process, a pre-cooling step is carried out. By lowering the chamber temperature, the moisture content in the chamber is reduced.
4️⃣ Freezing: Cool the material to an extremely low temperature. This can be achieved using a coolant (such as liquid nitrogen). The purpose of freezing is to rapidly freeze the material into a solid state in a vacuum environment.
5️⃣ Vacuum: After the material has been frozen, the depressurization process begins. The ambient pressure is reduced to an extremely low level, allowing water to directly transform from a solid state to a gaseous state without passing through a liquid state.
6️⃣ Heating: In a vacuum environment, heat the working chamber of the freeze-drying machine. Continuously heat to transform the moisture in the material from a solid state to a gaseous state, thereby completing the freeze-drying process.
7️⃣ Ventilation: Once the moisture in the material has been freeze-dried, stop heating and introduce gas through the inlet valve into the chamber to break the vacuum state.
8️⃣ Reaction: Depending on the requirements, some reactions can be carried out on the material after venting. For instance, adding other components or controlling the temperature and humidity can be used to alter the properties of the material.
9️⃣ Freeze-drying completed: After going through the above steps, the processing of the freeze-dried material is finished. It can be used as a product with a longer shelf life, or it can be packaged and stored.
